./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.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_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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_27767766-be3b-40ef-9224-348a012a0763/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 6f520cae1fe274b0f3a6786f3c06c3b2db48180a97ced5103b1a188b50ee581d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:29,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:29,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:29,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:29,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:29,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:29,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:29,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:29,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:29,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:29,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:29,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:29,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:29,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:29,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:29,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:29,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:29,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:29,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:29,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:29,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:29,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:29,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:29,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:29,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:29,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:29,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:29,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:29,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:29,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:29,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:29,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:29,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:29,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:29,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:29,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:29,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:29,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:29,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:29,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:29,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:29,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:03:29,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:29,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:29,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:29,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:29,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:29,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:29,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:29,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:29,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:29,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:29,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:29,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:29,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:29,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:29,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:29,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:29,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:29,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:29,352 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:29,352 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:29,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:29,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:29,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:29,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:29,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:29,354 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:29,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:29,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:29,354 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_27767766-be3b-40ef-9224-348a012a0763/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f520cae1fe274b0f3a6786f3c06c3b2db48180a97ced5103b1a188b50ee581d [2021-11-23 15:03:29,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:29,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:29,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:29,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:29,706 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:29,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2021-11-23 15:03:29,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/1f25d9260/7aa1b5f7977d4a65b60d30c00b5ce623/FLAGd1d9a9eed [2021-11-23 15:03:30,323 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:30,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2021-11-23 15:03:30,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/1f25d9260/7aa1b5f7977d4a65b60d30c00b5ce623/FLAGd1d9a9eed [2021-11-23 15:03:30,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/1f25d9260/7aa1b5f7977d4a65b60d30c00b5ce623 [2021-11-23 15:03:30,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:30,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:30,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:30,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:30,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:30,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:30" (1/1) ... [2021-11-23 15:03:30,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661a9707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:30, skipping insertion in model container [2021-11-23 15:03:30,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:30" (1/1) ... [2021-11-23 15:03:30,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:30,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:30,882 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2021-11-23 15:03:30,955 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2021-11-23 15:03:31,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:31,084 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:31,094 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2021-11-23 15:03:31,118 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2021-11-23 15:03:31,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:31,273 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:31,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31 WrapperNode [2021-11-23 15:03:31,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:31,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:31,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:31,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:31,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,372 INFO L137 Inliner]: procedures = 81, calls = 100, calls flagged for inlining = 50, calls inlined = 50, statements flattened = 1136 [2021-11-23 15:03:31,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:31,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:31,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:31,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:31,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:31,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:31,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:31,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:31,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:31" (1/1) ... [2021-11-23 15:03:31,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:31,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:31,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:31,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 15:03:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 15:03:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-11-23 15:03:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-11-23 15:03:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2021-11-23 15:03:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2021-11-23 15:03:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2021-11-23 15:03:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2021-11-23 15:03:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2021-11-23 15:03:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2021-11-23 15:03:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2021-11-23 15:03:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2021-11-23 15:03:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2021-11-23 15:03:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2021-11-23 15:03:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2021-11-23 15:03:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2021-11-23 15:03:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-11-23 15:03:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-11-23 15:03:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2021-11-23 15:03:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2021-11-23 15:03:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2021-11-23 15:03:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2021-11-23 15:03:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2021-11-23 15:03:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2021-11-23 15:03:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2021-11-23 15:03:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2021-11-23 15:03:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2021-11-23 15:03:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2021-11-23 15:03:31,709 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:31,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:32,720 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2021-11-23 15:03:32,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2021-11-23 15:03:32,796 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:32,889 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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 15:03:32,899 INFO L158 Benchmark]: Toolchain (without parser) took 2254.28ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 67.8MB in the end (delta: 10.3MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2021-11-23 15:03:32,900 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:32,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.76ms. Allocated memory is still 100.7MB. Free memory was 77.9MB in the beginning and 61.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:32,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.22ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 56.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:03:32,905 INFO L158 Benchmark]: Boogie Preprocessor took 95.28ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 52.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:32,905 INFO L158 Benchmark]: RCFGBuilder took 1427.68ms. Allocated memory is still 100.7MB. Free memory was 51.8MB in the beginning and 67.8MB in the end (delta: -16.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-11-23 15:03:32,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.76ms. Allocated memory is still 100.7MB. Free memory was 77.9MB in the beginning and 61.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.22ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 56.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.28ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 52.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1427.68ms. Allocated memory is still 100.7MB. Free memory was 51.8MB in the beginning and 67.8MB in the end (delta: -16.0MB). Peak memory consumption was 31.0MB. 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 15:03:32,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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 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_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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_27767766-be3b-40ef-9224-348a012a0763/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 6f520cae1fe274b0f3a6786f3c06c3b2db48180a97ced5103b1a188b50ee581d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:35,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:35,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:35,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:35,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:35,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:35,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:35,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:35,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:35,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:35,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:35,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:35,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:35,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:35,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:35,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:35,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:35,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:35,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:35,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:35,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:35,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:35,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:35,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:35,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:35,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:35,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:35,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:35,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:35,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:35,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:35,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:35,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:35,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:35,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:35,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:35,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:35,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:35,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:35,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:35,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:35,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:35,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:35,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:35,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:35,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:35,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:35,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:35,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:35,625 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:35,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:35,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:35,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:35,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:35,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:35,627 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:35,627 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:35,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:35,628 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:35,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:35,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:35,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:35,629 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:35,629 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:35,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:35,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:35,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:35,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:35,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:35,631 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:35,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:35,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:35,631 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:35,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:35,632 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_27767766-be3b-40ef-9224-348a012a0763/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f520cae1fe274b0f3a6786f3c06c3b2db48180a97ced5103b1a188b50ee581d [2021-11-23 15:03:35,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:36,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:36,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:36,022 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:36,026 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:36,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2021-11-23 15:03:36,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/b53b0438a/2e9ea311b6db41ffbaf69c5ae336a339/FLAG8c5da512f [2021-11-23 15:03:36,668 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:36,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c [2021-11-23 15:03:36,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/b53b0438a/2e9ea311b6db41ffbaf69c5ae336a339/FLAG8c5da512f [2021-11-23 15:03:36,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/data/b53b0438a/2e9ea311b6db41ffbaf69c5ae336a339 [2021-11-23 15:03:36,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:36,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:36,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:36,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:36,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:36,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:36" (1/1) ... [2021-11-23 15:03:36,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eddb65b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:36, skipping insertion in model container [2021-11-23 15:03:36,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:36" (1/1) ... [2021-11-23 15:03:37,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:37,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:37,327 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2021-11-23 15:03:37,468 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2021-11-23 15:03:37,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:37,633 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:37,649 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[911,924] [2021-11-23 15:03:37,669 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_27767766-be3b-40ef-9224-348a012a0763/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.13.cil-2.c[8416,8429] [2021-11-23 15:03:37,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:37,815 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:37,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37 WrapperNode [2021-11-23 15:03:37,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:37,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:37,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:37,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:37,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,951 INFO L137 Inliner]: procedures = 82, calls = 100, calls flagged for inlining = 50, calls inlined = 50, statements flattened = 1094 [2021-11-23 15:03:37,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:37,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:37,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:37,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:37,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:37,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:38,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:38,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:38,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:38,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:38,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:38,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:38,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:38,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:37" (1/1) ... [2021-11-23 15:03:38,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:38,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:38,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:38,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 15:03:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 15:03:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2021-11-23 15:03:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2021-11-23 15:03:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2021-11-23 15:03:38,177 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2021-11-23 15:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2021-11-23 15:03:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2021-11-23 15:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2021-11-23 15:03:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2021-11-23 15:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2021-11-23 15:03:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2021-11-23 15:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2021-11-23 15:03:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2021-11-23 15:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2021-11-23 15:03:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2021-11-23 15:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2021-11-23 15:03:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2021-11-23 15:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2021-11-23 15:03:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2021-11-23 15:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2021-11-23 15:03:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2021-11-23 15:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2021-11-23 15:03:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2021-11-23 15:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2021-11-23 15:03:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2021-11-23 15:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2021-11-23 15:03:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2021-11-23 15:03:38,384 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:38,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:39,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2021-11-23 15:03:39,467 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2021-11-23 15:03:39,622 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:39,675 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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 15:03:39,679 INFO L158 Benchmark]: Toolchain (without parser) took 2690.70ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 44.9MB in the beginning and 63.5MB in the end (delta: -18.6MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,680 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:39,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.36ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.5MB in the end (delta: 10.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.09ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 34.5MB in the beginning and 75.6MB in the end (delta: -41.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,683 INFO L158 Benchmark]: Boogie Preprocessor took 131.60ms. Allocated memory is still 94.4MB. Free memory was 75.6MB in the beginning and 70.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,683 INFO L158 Benchmark]: RCFGBuilder took 1592.94ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 63.5MB in the end (delta: 6.8MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2021-11-23 15:03:39,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.36ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.5MB in the end (delta: 10.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.09ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 34.5MB in the beginning and 75.6MB in the end (delta: -41.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.60ms. Allocated memory is still 94.4MB. Free memory was 75.6MB in the beginning and 70.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1592.94ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 63.5MB in the end (delta: 6.8MB). Peak memory consumption was 30.8MB. 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 15:03:39,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27767766-be3b-40ef-9224-348a012a0763/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