./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-ext/47_ticket_lock_hc_backoff_vs.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 219d6b9593945d8bc2315cfe0cf7d7af877793ba ........................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-ext/47_ticket_lock_hc_backoff_vs.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 219d6b9593945d8bc2315cfe0cf7d7af877793ba .......................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs? --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:53:13,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:53:13,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:53:13,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:53:13,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:53:13,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:53:13,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:53:13,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:53:13,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:53:13,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:53:13,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:53:13,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:53:13,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:53:13,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:53:13,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:53:13,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:53:13,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:53:13,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:53:13,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:53:13,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:53:13,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:53:13,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:53:13,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:53:13,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:53:13,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:53:13,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:53:13,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:53:13,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:53:13,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:53:13,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:53:13,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:53:13,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:53:13,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:53:13,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:53:13,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:53:13,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:53:13,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:53:13,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:53:13,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:53:13,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:53:13,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:53:13,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:53:13,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:53:13,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:53:13,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:53:13,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:53:13,955 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:53:13,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:53:13,956 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:53:13,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:53:13,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:53:13,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:53:13,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:53:13,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:53:13,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:53:13,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:53:13,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:53:13,959 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:53:13,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:53:13,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:53:13,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:53:13,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:53:13,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:53:13,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:53:13,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:53:13,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:53:13,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:53:13,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:53:13,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:53:13,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:53:13,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 219d6b9593945d8bc2315cfe0cf7d7af877793ba [2019-11-28 00:53:14,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:53:14,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:53:14,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:53:14,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:53:14,277 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:53:14,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2019-11-28 00:53:14,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae43f142b/f21e7ff17cf14515b8d142f802dc9015/FLAGcd663d197 [2019-11-28 00:53:14,882 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:53:14,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2019-11-28 00:53:14,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae43f142b/f21e7ff17cf14515b8d142f802dc9015/FLAGcd663d197 [2019-11-28 00:53:15,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae43f142b/f21e7ff17cf14515b8d142f802dc9015 [2019-11-28 00:53:15,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:53:15,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:53:15,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:53:15,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:53:15,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:53:15,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2364ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15, skipping insertion in model container [2019-11-28 00:53:15,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:53:15,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:53:15,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:53:15,754 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:53:15,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:53:15,903 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:53:15,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15 WrapperNode [2019-11-28 00:53:15,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:53:15,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:53:15,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:53:15,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:53:15,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:53:15,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:53:15,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:53:15,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:53:15,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... [2019-11-28 00:53:15,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:53:15,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:53:16,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:53:16,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:53:16,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:53:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 00:53:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-28 00:53:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-28 00:53:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 00:53:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:53:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 00:53:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:53:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:53:16,064 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 00:53:16,259 INFO L1547 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_fetch_and_inc_returnLabel [2019-11-28 00:53:16,378 INFO L1547 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_fetch_and_inc_returnLabel [2019-11-28 00:53:16,491 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.isIntermediateNodeOfSequentialCompositionCandidate(CfgBuilder.java:1720) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1632) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 00:53:16,496 INFO L168 Benchmark]: Toolchain (without parser) took 1317.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -114.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:16,497 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:53:16,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:16,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:16,500 INFO L168 Benchmark]: Boogie Preprocessor took 37.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:53:16,501 INFO L168 Benchmark]: RCFGBuilder took 493.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:16,504 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 725.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 493.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.isIntermediateNodeOfSequentialCompositionCandidate(CfgBuilder.java:1720) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:53:18,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:53:18,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:53:18,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:53:18,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:53:18,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:53:18,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:53:18,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:53:18,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:53:18,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:53:18,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:53:18,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:53:18,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:53:18,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:53:18,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:53:18,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:53:18,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:53:18,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:53:18,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:53:18,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:53:18,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:53:18,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:53:18,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:53:18,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:53:18,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:53:18,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:53:18,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:53:18,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:53:18,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:53:18,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:53:18,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:53:18,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:53:18,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:53:18,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:53:18,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:53:18,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:53:18,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:53:18,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:53:18,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:53:18,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:53:18,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:53:18,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 00:53:18,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:53:18,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:53:18,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:53:18,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:53:18,714 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:53:18,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:53:18,715 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:53:18,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:53:18,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:53:18,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:53:18,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:53:18,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:53:18,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 00:53:18,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 00:53:18,718 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:53:18,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:53:18,719 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:53:18,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:53:18,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:53:18,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:53:18,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:53:18,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:53:18,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:53:18,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:53:18,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:53:18,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:53:18,721 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 00:53:18,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 00:53:18,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:53:18,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 00:53:18,723 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 219d6b9593945d8bc2315cfe0cf7d7af877793ba [2019-11-28 00:53:19,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:53:19,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:53:19,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:53:19,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:53:19,044 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:53:19,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2019-11-28 00:53:19,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d888144e4/fd94c9c2d28e4ca9b7886519ea879811/FLAG9ae54bd36 [2019-11-28 00:53:19,608 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:53:19,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2019-11-28 00:53:19,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d888144e4/fd94c9c2d28e4ca9b7886519ea879811/FLAG9ae54bd36 [2019-11-28 00:53:19,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d888144e4/fd94c9c2d28e4ca9b7886519ea879811 [2019-11-28 00:53:19,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:53:19,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:53:19,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:53:19,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:53:19,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:53:19,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:53:19" (1/1) ... [2019-11-28 00:53:19,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d52cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:19, skipping insertion in model container [2019-11-28 00:53:19,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:53:19" (1/1) ... [2019-11-28 00:53:19,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:53:20,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:53:20,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:53:20,521 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:53:20,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:53:20,665 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:53:20,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20 WrapperNode [2019-11-28 00:53:20,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:53:20,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:53:20,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:53:20,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:53:20,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:53:20,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:53:20,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:53:20,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:53:20,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... [2019-11-28 00:53:20,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:53:20,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:53:20,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:53:20,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:53:20,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:53:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:53:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 00:53:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-28 00:53:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-28 00:53:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:53:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 00:53:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 00:53:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:53:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:53:20,841 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 00:53:21,049 INFO L1547 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_fetch_and_inc_returnLabel [2019-11-28 00:53:21,178 INFO L1547 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_fetch_and_inc_returnLabel [2019-11-28 00:53:21,295 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.isIntermediateNodeOfSequentialCompositionCandidate(CfgBuilder.java:1720) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1632) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 00:53:21,301 INFO L168 Benchmark]: Toolchain (without parser) took 1347.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -115.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:21,301 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:53:21,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:21,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:53:21,303 INFO L168 Benchmark]: Boogie Preprocessor took 35.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:53:21,304 INFO L168 Benchmark]: RCFGBuilder took 538.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2019-11-28 00:53:21,307 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 713.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 538.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: IllegalStateException: fork and join should never be part of a composition. Are you accidentally using a block encoding that is not suitable for concurrent programs?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.isIntermediateNodeOfSequentialCompositionCandidate(CfgBuilder.java:1720) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...