./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-complex/elimination_backoff_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_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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_419285d3-6f3f-438f-ab6b-b5c583aad20e/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 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:32:03,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:32:03,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:32:03,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:32:03,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:32:03,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:32:03,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:32:03,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:32:03,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:32:03,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:32:03,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:32:03,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:32:03,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:32:03,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:32:03,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:32:03,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:32:03,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:32:03,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:32:03,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:32:03,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:32:03,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:32:03,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:32:03,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:32:03,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:32:03,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:32:03,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:32:03,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:32:03,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:32:03,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:32:03,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:32:03,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:32:03,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:32:03,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:32:03,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:32:03,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:32:03,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:32:03,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:32:03,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:32:03,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:32:03,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:32:03,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:32:03,379 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:32:03,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:32:03,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:32:03,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:32:03,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:32:03,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:32:03,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:32:03,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:32:03,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:32:03,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:32:03,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:32:03,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:32:03,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:32:03,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:32:03,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:32:03,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:32:03,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:32:03,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:32:03,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:32:03,430 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:32:03,430 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:32:03,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:32:03,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:32:03,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:32:03,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:32:03,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:32:03,432 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:32:03,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:32:03,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:32:03,434 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2021-11-23 15:32:03,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:32:03,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:32:03,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:32:03,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:32:03,797 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:32:03,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2021-11-23 15:32:03,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/90c6b761d/98af797d87294e2ab96db14d56707980/FLAG011b3cae1 [2021-11-23 15:32:04,630 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:32:04,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2021-11-23 15:32:04,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/90c6b761d/98af797d87294e2ab96db14d56707980/FLAG011b3cae1 [2021-11-23 15:32:04,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/90c6b761d/98af797d87294e2ab96db14d56707980 [2021-11-23 15:32:04,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:32:04,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:32:04,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:32:04,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:32:04,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:32:04,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:04" (1/1) ... [2021-11-23 15:32:04,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53366f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:04, skipping insertion in model container [2021-11-23 15:32:04,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:04" (1/1) ... [2021-11-23 15:32:04,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:32:04,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:32:05,780 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2021-11-23 15:32:05,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:32:05,825 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:32:05,909 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2021-11-23 15:32:05,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:32:06,064 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:32:06,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06 WrapperNode [2021-11-23 15:32:06,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:32:06,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:32:06,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:32:06,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:32:06,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,160 INFO L137 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 280 [2021-11-23 15:32:06,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:32:06,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:32:06,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:32:06,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:32:06,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:32:06,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:32:06,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:32:06,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:32:06,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2021-11-23 15:32:06,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:32:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:32:06,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:32:06,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:32:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:32:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:32:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure ti_cas [2021-11-23 15:32:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_cas [2021-11-23 15:32:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:32:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure checkInvariant [2021-11-23 15:32:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure checkInvariant [2021-11-23 15:32:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure LesOP [2021-11-23 15:32:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure LesOP [2021-11-23 15:32:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure DecrIncr_Push [2021-11-23 15:32:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure DecrIncr_Push [2021-11-23 15:32:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure FinishCollision [2021-11-23 15:32:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure FinishCollision [2021-11-23 15:32:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:32:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure DecrIncr_Pop [2021-11-23 15:32:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure DecrIncr_Pop [2021-11-23 15:32:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:32:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:32:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_c_cas [2021-11-23 15:32:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_c_cas [2021-11-23 15:32:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2021-11-23 15:32:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2021-11-23 15:32:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2021-11-23 15:32:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2021-11-23 15:32:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2021-11-23 15:32:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2021-11-23 15:32:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:32:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:32:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure Pop [2021-11-23 15:32:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure Pop [2021-11-23 15:32:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure Incr_Pop [2021-11-23 15:32:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure Incr_Pop [2021-11-23 15:32:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:32:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:32:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:32:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:32:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:32:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure Incr_Push [2021-11-23 15:32:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure Incr_Push [2021-11-23 15:32:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure Push [2021-11-23 15:32:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure Push [2021-11-23 15:32:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:32:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2021-11-23 15:32:06,382 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2021-11-23 15:32:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2021-11-23 15:32:06,382 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2021-11-23 15:32:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2021-11-23 15:32:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2021-11-23 15:32:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_ti_cas [2021-11-23 15:32:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_ti_cas [2021-11-23 15:32:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2021-11-23 15:32:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2021-11-23 15:32:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure TryPerformStackOp [2021-11-23 15:32:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure TryPerformStackOp [2021-11-23 15:32:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_ThreadInfo [2021-11-23 15:32:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc_ThreadInfo [2021-11-23 15:32:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:32:06,387 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 15:32:06,648 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:32:06,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:32:07,589 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:32:07,858 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:32:07,864 INFO L158 Benchmark]: Toolchain (without parser) took 3105.14ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 45.8MB in the beginning and 62.2MB in the end (delta: -16.3MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-11-23 15:32:07,864 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:32:07,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1305.68ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 44.8MB in the end (delta: 831.4kB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 15:32:07,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.69ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 41.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:32:07,868 INFO L158 Benchmark]: Boogie Preprocessor took 83.14ms. Allocated memory is still 107.0MB. Free memory was 41.1MB in the beginning and 81.0MB in the end (delta: -39.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:32:07,869 INFO L158 Benchmark]: RCFGBuilder took 1615.97ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 62.2MB in the end (delta: 18.8MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2021-11-23 15:32:07,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1305.68ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 44.8MB in the end (delta: 831.4kB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.69ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 41.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.14ms. Allocated memory is still 107.0MB. Free memory was 41.1MB in the beginning and 81.0MB in the end (delta: -39.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1615.97ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 62.2MB in the end (delta: 18.8MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:32:07,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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_419285d3-6f3f-438f-ab6b-b5c583aad20e/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 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:32:10,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:32:10,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:32:10,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:32:10,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:32:10,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:32:10,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:32:10,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:32:10,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:32:11,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:32:11,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:32:11,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:32:11,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:32:11,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:32:11,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:32:11,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:32:11,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:32:11,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:32:11,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:32:11,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:32:11,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:32:11,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:32:11,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:32:11,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:32:11,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:32:11,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:32:11,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:32:11,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:32:11,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:32:11,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:32:11,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:32:11,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:32:11,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:32:11,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:32:11,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:32:11,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:32:11,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:32:11,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:32:11,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:32:11,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:32:11,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:32:11,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:32:11,184 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:32:11,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:32:11,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:32:11,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:32:11,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:32:11,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:32:11,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:32:11,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:32:11,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:32:11,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:32:11,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:32:11,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:32:11,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:32:11,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:32:11,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:32:11,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:32:11,191 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:32:11,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:32:11,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:32:11,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:32:11,192 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:32:11,192 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:32:11,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:32:11,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:32:11,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:32:11,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:32:11,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:32:11,194 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:32:11,194 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:32:11,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:32:11,195 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:32:11,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:32:11,196 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2021-11-23 15:32:11,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:32:11,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:32:11,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:32:11,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:32:11,695 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:32:11,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2021-11-23 15:32:11,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/b526aaf59/019f5f39a0fe4151a5f00c4251895a9b/FLAG8c21f4d9b [2021-11-23 15:32:12,865 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:32:12,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2021-11-23 15:32:12,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/b526aaf59/019f5f39a0fe4151a5f00c4251895a9b/FLAG8c21f4d9b [2021-11-23 15:32:12,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/data/b526aaf59/019f5f39a0fe4151a5f00c4251895a9b [2021-11-23 15:32:12,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:32:12,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:32:12,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:32:12,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:32:12,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:32:12,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:12" (1/1) ... [2021-11-23 15:32:12,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36620768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:12, skipping insertion in model container [2021-11-23 15:32:12,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:12" (1/1) ... [2021-11-23 15:32:12,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:32:13,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:32:14,161 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2021-11-23 15:32:14,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:32:14,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:32:14,445 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_419285d3-6f3f-438f-ab6b-b5c583aad20e/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i[63494,63507] [2021-11-23 15:32:14,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:32:14,652 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:32:14,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14 WrapperNode [2021-11-23 15:32:14,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:32:14,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:32:14,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:32:14,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:32:14,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,773 INFO L137 Inliner]: procedures = 401, calls = 214, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 272 [2021-11-23 15:32:14,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:32:14,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:32:14,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:32:14,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:32:14,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:32:14,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:32:14,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:32:14,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:32:14,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:14" (1/1) ... [2021-11-23 15:32:14,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:32:14,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:32:15,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:32:15,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:32:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:32:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:32:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:32:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:32:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure ti_cas [2021-11-23 15:32:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_cas [2021-11-23 15:32:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:32:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure checkInvariant [2021-11-23 15:32:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure checkInvariant [2021-11-23 15:32:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure LesOP [2021-11-23 15:32:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure LesOP [2021-11-23 15:32:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure DecrIncr_Push [2021-11-23 15:32:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure DecrIncr_Push [2021-11-23 15:32:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure FinishCollision [2021-11-23 15:32:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure FinishCollision [2021-11-23 15:32:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure DecrIncr_Pop [2021-11-23 15:32:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure DecrIncr_Pop [2021-11-23 15:32:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:32:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:32:15,087 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_c_cas [2021-11-23 15:32:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_c_cas [2021-11-23 15:32:15,088 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2021-11-23 15:32:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2021-11-23 15:32:15,088 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2021-11-23 15:32:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2021-11-23 15:32:15,088 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2021-11-23 15:32:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2021-11-23 15:32:15,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:32:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:32:15,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:32:15,089 INFO L130 BoogieDeclarations]: Found specification of procedure Pop [2021-11-23 15:32:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure Pop [2021-11-23 15:32:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure Incr_Pop [2021-11-23 15:32:15,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Incr_Pop [2021-11-23 15:32:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:32:15,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:32:15,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:32:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:32:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:32:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:32:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure Incr_Push [2021-11-23 15:32:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure Incr_Push [2021-11-23 15:32:15,093 INFO L130 BoogieDeclarations]: Found specification of procedure Push [2021-11-23 15:32:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure Push [2021-11-23 15:32:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2021-11-23 15:32:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2021-11-23 15:32:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2021-11-23 15:32:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2021-11-23 15:32:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2021-11-23 15:32:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2021-11-23 15:32:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_ti_cas [2021-11-23 15:32:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_ti_cas [2021-11-23 15:32:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2021-11-23 15:32:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2021-11-23 15:32:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure TryPerformStackOp [2021-11-23 15:32:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure TryPerformStackOp [2021-11-23 15:32:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_ThreadInfo [2021-11-23 15:32:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc_ThreadInfo [2021-11-23 15:32:15,102 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 15:32:15,537 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:32:15,540 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:32:17,023 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:32:17,331 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:32:17,337 INFO L158 Benchmark]: Toolchain (without parser) took 4391.76ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 60.6MB in the beginning and 50.0MB in the end (delta: 10.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2021-11-23 15:32:17,338 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:32:17,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1707.76ms. Allocated memory is still 77.6MB. Free memory was 60.5MB in the beginning and 43.1MB in the end (delta: 17.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2021-11-23 15:32:17,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.04ms. Allocated memory is still 77.6MB. Free memory was 43.1MB in the beginning and 39.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:32:17,345 INFO L158 Benchmark]: Boogie Preprocessor took 160.19ms. Allocated memory is still 77.6MB. Free memory was 39.2MB in the beginning and 34.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:32:17,346 INFO L158 Benchmark]: RCFGBuilder took 2394.21ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 34.8MB in the beginning and 50.0MB in the end (delta: -15.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-23 15:32:17,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1707.76ms. Allocated memory is still 77.6MB. Free memory was 60.5MB in the beginning and 43.1MB in the end (delta: 17.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.04ms. Allocated memory is still 77.6MB. Free memory was 43.1MB in the beginning and 39.2MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 160.19ms. Allocated memory is still 77.6MB. Free memory was 39.2MB in the beginning and 34.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2394.21ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 34.8MB in the beginning and 50.0MB in the end (delta: -15.2MB). Peak memory consumption was 15.9MB. 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 15:32:17,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_419285d3-6f3f-438f-ab6b-b5c583aad20e/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