./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:01:41,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:01:41,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:01:41,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:01:41,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:01:41,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:01:41,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:01:41,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:01:41,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:01:41,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:01:41,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:01:41,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:01:41,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:01:41,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:01:41,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:01:41,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:01:41,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:01:41,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:01:41,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:01:41,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:01:41,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:01:41,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:01:41,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:01:41,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:01:41,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:01:41,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:01:41,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:01:41,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:01:41,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:01:41,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:01:41,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:01:41,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:01:41,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:01:41,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:01:41,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:01:41,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:01:41,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:01:41,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:01:41,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:01:41,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:01:41,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:01:41,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:01:41,860 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:01:41,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:01:41,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:01:41,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:01:41,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:01:41,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:01:41,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:01:41,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:01:41,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:01:41,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:01:41,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:01:41,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:01:41,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:01:41,865 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:01:41,865 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:01:41,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:01:41,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:41,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:01:41,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:01:41,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:01:41,866 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:01:41,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:01:41,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:01:41,867 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 [2021-11-23 15:01:42,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:01:42,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:01:42,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:01:42,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:01:42,172 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:01:42,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/25_stack.i [2021-11-23 15:01:42,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/27165c9eb/9f9b0db8cac043b1b46454a133445a7a/FLAGb62ad6069 [2021-11-23 15:01:42,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:01:42,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i [2021-11-23 15:01:42,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/27165c9eb/9f9b0db8cac043b1b46454a133445a7a/FLAGb62ad6069 [2021-11-23 15:01:43,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/27165c9eb/9f9b0db8cac043b1b46454a133445a7a [2021-11-23 15:01:43,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:01:43,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:01:43,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:43,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:01:43,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:01:43,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ab3a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43, skipping insertion in model container [2021-11-23 15:01:43,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:01:43,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:01:43,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2021-11-23 15:01:43,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:43,604 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:01:43,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2021-11-23 15:01:43,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:43,711 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:01:43,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43 WrapperNode [2021-11-23 15:01:43,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:43,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:43,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:01:43,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:01:43,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,801 INFO L137 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 115 [2021-11-23 15:01:43,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:43,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:01:43,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:01:43,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:01:43,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:01:43,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:01:43,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:01:43,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:01:43,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:43" (1/1) ... [2021-11-23 15:01:43,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:43,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:01:43,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:01:43,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:01:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:01:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:01:43,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:01:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:01:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:01:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:01:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:01:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:01:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:01:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:01:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:01:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2021-11-23 15:01:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2021-11-23 15:01:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:01:43,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:01:43,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:01:43,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:01:43,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:01:43,927 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:01:44,032 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:01:44,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:01:44,277 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:01:44,322 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) [2021-11-23 15:01:44,332 INFO L158 Benchmark]: Toolchain (without parser) took 1224.11ms. Allocated memory is still 115.3MB. Free memory was 74.5MB in the beginning and 58.8MB in the end (delta: 15.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:44,333 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:44,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.41ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 78.1MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:44,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.28ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:44,337 INFO L158 Benchmark]: Boogie Preprocessor took 41.74ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:44,338 INFO L158 Benchmark]: RCFGBuilder took 485.77ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 59.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:01:44,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.41ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 78.1MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.28ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.74ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.77ms. Allocated memory is still 115.3MB. Free memory was 74.3MB in the beginning and 59.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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. [2021-11-23 15:01:44,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:01:46,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:01:46,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:01:46,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:01:46,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:01:46,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:01:46,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:01:46,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:01:46,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:01:46,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:01:46,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:01:46,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:01:46,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:01:46,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:01:46,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:01:46,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:01:46,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:01:46,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:01:46,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:01:46,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:01:46,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:01:46,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:01:46,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:01:46,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:01:46,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:01:46,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:01:46,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:01:46,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:01:46,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:01:46,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:01:46,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:01:46,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:01:46,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:01:46,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:01:46,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:01:46,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:01:46,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:01:46,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:01:46,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:01:46,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:01:46,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:01:46,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:01:47,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:01:47,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:01:47,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:01:47,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:01:47,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:01:47,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:01:47,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:01:47,028 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:01:47,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:01:47,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:01:47,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:01:47,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:01:47,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:01:47,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:01:47,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:01:47,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:01:47,031 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:01:47,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:01:47,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:01:47,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:01:47,032 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:01:47,032 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:01:47,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:01:47,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:47,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:01:47,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:01:47,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:01:47,033 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:01:47,033 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:01:47,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:01:47,034 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:01:47,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:01:47,034 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 [2021-11-23 15:01:47,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:01:47,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:01:47,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:01:47,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:01:47,480 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:01:47,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/25_stack.i [2021-11-23 15:01:47,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/55a1773ea/09cdbcf6777f461c90a20cb282820da4/FLAGe55933684 [2021-11-23 15:01:48,099 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:01:48,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i [2021-11-23 15:01:48,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/55a1773ea/09cdbcf6777f461c90a20cb282820da4/FLAGe55933684 [2021-11-23 15:01:48,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/data/55a1773ea/09cdbcf6777f461c90a20cb282820da4 [2021-11-23 15:01:48,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:01:48,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:01:48,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:48,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:01:48,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:01:48,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:48" (1/1) ... [2021-11-23 15:01:48,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2f785a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:48, skipping insertion in model container [2021-11-23 15:01:48,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:48" (1/1) ... [2021-11-23 15:01:48,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:01:48,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:01:48,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2021-11-23 15:01:48,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:49,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:01:49,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/sv-benchmarks/c/pthread-ext/25_stack.i[31028,31041] [2021-11-23 15:01:49,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:49,140 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:01:49,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49 WrapperNode [2021-11-23 15:01:49,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:49,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:49,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:01:49,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:01:49,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,221 INFO L137 Inliner]: procedures = 181, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2021-11-23 15:01:49,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:49,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:01:49,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:01:49,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:01:49,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:01:49,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:01:49,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:01:49,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:01:49,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:49" (1/1) ... [2021-11-23 15:01:49,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:49,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:01:49,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:01:49,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:01:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:01:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:01:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:01:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:01:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:01:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:01:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:01:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:01:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2021-11-23 15:01:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2021-11-23 15:01:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:01:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:01:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:01:49,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:01:49,386 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:01:49,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:01:49,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:01:49,798 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:01:49,825 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) [2021-11-23 15:01:49,828 INFO L158 Benchmark]: Toolchain (without parser) took 1407.76ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 39.5MB in the end (delta: 3.8MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:49,829 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 50.3MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:49,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.37ms. Allocated memory is still 69.2MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:01:49,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.11ms. Allocated memory is still 69.2MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:49,832 INFO L158 Benchmark]: Boogie Preprocessor took 65.98ms. Allocated memory is still 69.2MB. Free memory was 38.3MB in the beginning and 36.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:49,832 INFO L158 Benchmark]: RCFGBuilder took 538.04ms. Allocated memory is still 69.2MB. Free memory was 36.3MB in the beginning and 39.5MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:01:49,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 50.3MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.37ms. Allocated memory is still 69.2MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.11ms. Allocated memory is still 69.2MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.98ms. Allocated memory is still 69.2MB. Free memory was 38.3MB in the beginning and 36.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.04ms. Allocated memory is still 69.2MB. Free memory was 36.3MB in the beginning and 39.5MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. 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. [2021-11-23 15:01:49,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342a39da-3df7-4f2a-a610-ba0935dc54f1/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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