./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c --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_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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_9c6701ab-295f-4306-aa21-08814f2b1449/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 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:30,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:30,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:30,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:30,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:30,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:30,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:30,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:30,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:30,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:30,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:30,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:30,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:30,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:30,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:30,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:30,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:30,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:30,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:30,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:30,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:30,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:30,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:30,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:30,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:30,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:30,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:30,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:30,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:30,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:30,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:30,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:30,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:30,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:30,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:30,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:30,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:30,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:30,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:30,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:30,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:30,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:03:30,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:30,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:30,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:30,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:30,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:30,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:30,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:30,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:30,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:30,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:30,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:30,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:30,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:30,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:30,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:30,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:30,485 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:30,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:30,485 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:30,486 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:30,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:30,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:30,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:30,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:30,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:30,487 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:30,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:30,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:30,488 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_9c6701ab-295f-4306-aa21-08814f2b1449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c [2021-11-23 15:03:30,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:30,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:30,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:30,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:30,745 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:30,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2021-11-23 15:03:30,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/42734b124/09c19c460a4a419f91567cb60555e1f7/FLAG1bb1ae44b [2021-11-23 15:03:31,329 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:31,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2021-11-23 15:03:31,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/42734b124/09c19c460a4a419f91567cb60555e1f7/FLAG1bb1ae44b [2021-11-23 15:03:31,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/42734b124/09c19c460a4a419f91567cb60555e1f7 [2021-11-23 15:03:31,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:31,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:31,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:31,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:31,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:31,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d80c666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31, skipping insertion in model container [2021-11-23 15:03:31,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:31,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:31,917 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2021-11-23 15:03:31,985 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2021-11-23 15:03:32,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:32,116 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:32,134 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2021-11-23 15:03:32,183 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2021-11-23 15:03:32,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:32,255 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:32,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32 WrapperNode [2021-11-23 15:03:32,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:32,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:32,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:32,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:32,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,335 INFO L137 Inliner]: procedures = 63, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 614 [2021-11-23 15:03:32,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:32,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:32,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:32,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:32,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:32,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:32,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:32,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:32,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32" (1/1) ... [2021-11-23 15:03:32,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:32,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:32,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 15:03:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 15:03:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-11-23 15:03:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-11-23 15:03:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2021-11-23 15:03:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2021-11-23 15:03:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2021-11-23 15:03:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2021-11-23 15:03:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2021-11-23 15:03:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2021-11-23 15:03:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2021-11-23 15:03:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2021-11-23 15:03:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2021-11-23 15:03:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2021-11-23 15:03:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2021-11-23 15:03:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2021-11-23 15:03:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-11-23 15:03:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-11-23 15:03:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2021-11-23 15:03:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2021-11-23 15:03:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2021-11-23 15:03:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2021-11-23 15:03:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2021-11-23 15:03:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2021-11-23 15:03:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2021-11-23 15:03:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2021-11-23 15:03:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2021-11-23 15:03:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2021-11-23 15:03:32,658 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:32,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:33,358 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2021-11-23 15:03:33,359 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2021-11-23 15:03:33,444 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:33,511 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java: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 15:03:33,516 INFO L158 Benchmark]: Toolchain (without parser) took 1869.04ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 80.3MB in the beginning and 97.9MB in the end (delta: -17.5MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:33,517 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:33,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.59ms. Allocated memory is still 111.1MB. Free memory was 80.1MB in the beginning and 76.7MB in the end (delta: 3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:33,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.46ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 73.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:33,520 INFO L158 Benchmark]: Boogie Preprocessor took 105.72ms. Allocated memory is still 111.1MB. Free memory was 73.4MB in the beginning and 70.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:33,521 INFO L158 Benchmark]: RCFGBuilder took 1071.56ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 70.5MB in the beginning and 97.9MB in the end (delta: -27.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:33,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.59ms. Allocated memory is still 111.1MB. Free memory was 80.1MB in the beginning and 76.7MB in the end (delta: 3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.46ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 73.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.72ms. Allocated memory is still 111.1MB. Free memory was 73.4MB in the beginning and 70.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1071.56ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 70.5MB in the beginning and 97.9MB in the end (delta: -27.3MB). Peak memory consumption was 29.5MB. 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 15:03:33,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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_9c6701ab-295f-4306-aa21-08814f2b1449/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 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:36,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:36,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:36,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:36,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:36,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:36,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:36,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:36,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:36,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:36,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:36,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:36,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:36,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:36,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:36,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:36,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:36,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:36,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:36,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:36,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:36,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:36,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:36,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:36,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:36,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:36,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:36,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:36,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:36,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:36,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:36,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:36,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:36,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:36,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:36,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:36,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:36,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:36,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:36,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:36,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:36,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:36,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:36,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:36,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:36,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:36,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:36,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:36,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:36,190 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:36,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:36,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:36,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:36,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:36,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:36,193 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:36,193 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:36,193 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:36,193 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:36,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:36,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:36,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:36,194 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:36,195 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:36,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:36,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:36,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:36,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:36,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:36,196 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:36,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:36,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:36,197 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:36,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:36,197 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_9c6701ab-295f-4306-aa21-08814f2b1449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c [2021-11-23 15:03:36,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:36,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:36,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:36,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:36,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:36,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2021-11-23 15:03:36,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/7436c7281/aef3f7f0b267452c90f664274fd7902e/FLAG541187c41 [2021-11-23 15:03:37,278 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:37,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2021-11-23 15:03:37,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/7436c7281/aef3f7f0b267452c90f664274fd7902e/FLAG541187c41 [2021-11-23 15:03:37,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/data/7436c7281/aef3f7f0b267452c90f664274fd7902e [2021-11-23 15:03:37,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:37,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:37,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:37,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:37,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:37,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9032c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37, skipping insertion in model container [2021-11-23 15:03:37,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:37,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:37,807 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2021-11-23 15:03:37,914 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2021-11-23 15:03:37,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:38,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:38,046 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[911,924] [2021-11-23 15:03:38,090 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_9c6701ab-295f-4306-aa21-08814f2b1449/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c[8416,8429] [2021-11-23 15:03:38,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:38,178 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:38,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38 WrapperNode [2021-11-23 15:03:38,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:38,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:38,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:38,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:38,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,281 INFO L137 Inliner]: procedures = 64, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 590 [2021-11-23 15:03:38,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:38,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:38,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:38,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:38,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:38,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:38,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:38,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:38,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:38" (1/1) ... [2021-11-23 15:03:38,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:38,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:38,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:38,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 15:03:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 15:03:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-11-23 15:03:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-11-23 15:03:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2021-11-23 15:03:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2021-11-23 15:03:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2021-11-23 15:03:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2021-11-23 15:03:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2021-11-23 15:03:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2021-11-23 15:03:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2021-11-23 15:03:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2021-11-23 15:03:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2021-11-23 15:03:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2021-11-23 15:03:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2021-11-23 15:03:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2021-11-23 15:03:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-11-23 15:03:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-11-23 15:03:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2021-11-23 15:03:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2021-11-23 15:03:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2021-11-23 15:03:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2021-11-23 15:03:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2021-11-23 15:03:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2021-11-23 15:03:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2021-11-23 15:03:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2021-11-23 15:03:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2021-11-23 15:03:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2021-11-23 15:03:38,672 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:38,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:39,363 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2021-11-23 15:03:39,363 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2021-11-23 15:03:39,424 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:39,472 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java: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 15:03:39,476 INFO L158 Benchmark]: Toolchain (without parser) took 1905.98ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.3MB in the beginning and 42.6MB in the end (delta: -8.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,477 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:39,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.47ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 48.4MB in the end (delta: -14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.64ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 45.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,479 INFO L158 Benchmark]: Boogie Preprocessor took 109.49ms. Allocated memory is still 71.3MB. Free memory was 45.0MB in the beginning and 42.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,480 INFO L158 Benchmark]: RCFGBuilder took 1074.96ms. Allocated memory is still 71.3MB. Free memory was 41.8MB in the beginning and 42.6MB in the end (delta: -799.4kB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.47ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.1MB in the beginning and 48.4MB in the end (delta: -14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.64ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 45.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.49ms. Allocated memory is still 71.3MB. Free memory was 45.0MB in the beginning and 42.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1074.96ms. Allocated memory is still 71.3MB. Free memory was 41.8MB in the beginning and 42.6MB in the end (delta: -799.4kB). Peak memory consumption was 14.6MB. 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 15:03:39,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c6701ab-295f-4306-aa21-08814f2b1449/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