./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_fib-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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_c635631f-82e6-4db4-9461-480f5110ee83/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 da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:02:44,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:02:44,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:02:44,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:02:44,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:02:44,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:02:44,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:02:44,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:02:44,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:02:44,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:02:44,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:02:44,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:02:44,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:02:44,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:02:44,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:02:44,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:02:44,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:02:44,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:02:44,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:02:44,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:02:44,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:02:44,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:02:44,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:02:44,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:02:44,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:02:44,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:02:44,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:02:44,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:02:44,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:02:44,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:02:44,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:02:44,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:02:44,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:02:44,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:02:44,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:02:44,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:02:44,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:02:44,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:02:44,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:02:44,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:02:44,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:02:44,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:02:44,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:02:44,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:02:44,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:02:44,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:02:44,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:02:44,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:02:44,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:02:44,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:02:44,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:02:44,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:02:44,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:02:44,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:02:44,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:02:44,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:02:44,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:02:44,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:02:44,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:02:44,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:02:44,735 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:02:44,735 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:02:44,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:02:44,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:44,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:02:44,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:02:44,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:02:44,737 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:02:44,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:02:44,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:02:44,738 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_c635631f-82e6-4db4-9461-480f5110ee83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 [2021-11-23 15:02:45,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:02:45,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:02:45,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:02:45,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:02:45,057 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:02:45,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/seq-pthread/cs_fib-1.i [2021-11-23 15:02:45,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/1e1c367b5/270694a9e76d4274856d086b81275311/FLAG61ccd2de5 [2021-11-23 15:02:45,821 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:02:45,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i [2021-11-23 15:02:45,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/1e1c367b5/270694a9e76d4274856d086b81275311/FLAG61ccd2de5 [2021-11-23 15:02:46,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/1e1c367b5/270694a9e76d4274856d086b81275311 [2021-11-23 15:02:46,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:02:46,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:02:46,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:46,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:02:46,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:02:46,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:46,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700dc2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46, skipping insertion in model container [2021-11-23 15:02:46,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:46,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:02:46,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:02:46,521 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_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2021-11-23 15:02:46,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:46,733 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:02:46,760 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_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2021-11-23 15:02:46,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:46,874 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:02:46,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46 WrapperNode [2021-11-23 15:02:46,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:46,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:46,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:02:46,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:02:46,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:46,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:46,990 INFO L137 Inliner]: procedures = 144, calls = 352, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 671 [2021-11-23 15:02:46,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:46,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:02:46,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:02:46,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:02:47,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:02:47,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:02:47,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:02:47,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:02:47,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:46" (1/1) ... [2021-11-23 15:02:47,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:47,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:02:47,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:02:47,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:02:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:02:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:02:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:02:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:02:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:02:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:02:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:02:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-11-23 15:02:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-11-23 15:02:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:02:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 15:02:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 15:02:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:02:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-11-23 15:02:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-11-23 15:02:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:02:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:02:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:02:47,513 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:02:47,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:02:47,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:02:47,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 15:02:47,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:02:47,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 15:02:47,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 15:02:47,898 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:02:47,898 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 15:02:59,627 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:02:59,654 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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 15:02:59,658 INFO L158 Benchmark]: Toolchain (without parser) took 13611.01ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 77.3MB in the beginning and 68.3MB in the end (delta: 9.0MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2021-11-23 15:02:59,659 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:02:59,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.89ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 71.3MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:02:59,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.40ms. Allocated memory is still 113.2MB. Free memory was 71.3MB in the beginning and 66.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:02:59,661 INFO L158 Benchmark]: Boogie Preprocessor took 156.39ms. Allocated memory is still 113.2MB. Free memory was 66.2MB in the beginning and 61.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:02:59,662 INFO L158 Benchmark]: RCFGBuilder took 12508.59ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 61.4MB in the beginning and 68.3MB in the end (delta: -6.9MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2021-11-23 15:02:59,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.89ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 71.3MB in the end (delta: 5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.40ms. Allocated memory is still 113.2MB. Free memory was 71.3MB in the beginning and 66.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 156.39ms. Allocated memory is still 113.2MB. Free memory was 66.2MB in the beginning and 61.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 12508.59ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 61.4MB in the beginning and 68.3MB in the end (delta: -6.9MB). Peak memory consumption was 60.0MB. 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 15:02:59,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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_c635631f-82e6-4db4-9461-480f5110ee83/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 da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:02,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:02,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:02,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:02,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:02,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:02,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:02,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:02,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:02,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:02,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:02,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:02,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:02,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:02,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:02,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:02,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:02,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:02,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:02,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:02,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:02,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:02,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:02,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:02,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:02,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:02,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:02,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:02,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:02,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:02,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:02,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:02,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:02,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:02,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:02,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:02,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:02,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:02,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:02,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:02,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:02,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:02,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:02,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:02,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:02,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:02,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:02,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:02,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:02,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:02,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:02,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:02,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:02,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:02,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:02,415 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:02,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:02,416 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:02,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:02,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:02,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:02,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:02,418 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:02,418 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:02,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:02,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:02,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:02,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:02,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:02,420 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:02,420 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:02,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:02,421 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:02,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:02,422 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_c635631f-82e6-4db4-9461-480f5110ee83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 [2021-11-23 15:03:02,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:02,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:02,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:02,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:02,868 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:02,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/seq-pthread/cs_fib-1.i [2021-11-23 15:03:02,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/52a958366/3106c4f1b92d454dba577201fb9f692a/FLAGbc1d6b259 [2021-11-23 15:03:03,681 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:03,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i [2021-11-23 15:03:03,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/52a958366/3106c4f1b92d454dba577201fb9f692a/FLAGbc1d6b259 [2021-11-23 15:03:03,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/data/52a958366/3106c4f1b92d454dba577201fb9f692a [2021-11-23 15:03:03,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:03,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:03,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:03,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:03,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:03,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:03" (1/1) ... [2021-11-23 15:03:03,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597cc69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:03, skipping insertion in model container [2021-11-23 15:03:03,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:03" (1/1) ... [2021-11-23 15:03:03,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:03,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:04,477 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_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2021-11-23 15:03:04,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:04,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:04,739 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_c635631f-82e6-4db4-9461-480f5110ee83/sv-benchmarks/c/seq-pthread/cs_fib-1.i[23602,23615] [2021-11-23 15:03:04,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:04,897 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:04,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04 WrapperNode [2021-11-23 15:03:04,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:04,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:04,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:04,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:04,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:04,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,011 INFO L137 Inliner]: procedures = 148, calls = 352, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 667 [2021-11-23 15:03:05,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:05,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:05,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:05,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:05,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:05,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:05,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:05,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:05,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:04" (1/1) ... [2021-11-23 15:03:05,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:05,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:05,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:05,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 15:03:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:03:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-11-23 15:03:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-11-23 15:03:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 15:03:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:03:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-11-23 15:03:05,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-11-23 15:03:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:05,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:05,502 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:05,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:05,990 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:03:05,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 15:03:05,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:03:05,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 15:03:05,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 15:03:05,991 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 15:03:05,992 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 15:03:17,564 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:17,602 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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 15:03:17,610 INFO L158 Benchmark]: Toolchain (without parser) took 13709.60ms. Allocated memory was 52.4MB in the beginning and 182.5MB in the end (delta: 130.0MB). Free memory was 26.9MB in the beginning and 118.7MB in the end (delta: -91.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:17,611 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:17,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 996.78ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 26.8MB in the beginning and 36.9MB in the end (delta: -10.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:17,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.16ms. Allocated memory is still 65.0MB. Free memory was 36.7MB in the beginning and 31.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:17,614 INFO L158 Benchmark]: Boogie Preprocessor took 108.75ms. Allocated memory is still 65.0MB. Free memory was 31.5MB in the beginning and 38.7MB in the end (delta: -7.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-23 15:03:17,616 INFO L158 Benchmark]: RCFGBuilder took 12483.12ms. Allocated memory was 65.0MB in the beginning and 182.5MB in the end (delta: 117.4MB). Free memory was 38.7MB in the beginning and 118.7MB in the end (delta: -80.0MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2021-11-23 15:03:17,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 996.78ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 26.8MB in the beginning and 36.9MB in the end (delta: -10.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.16ms. Allocated memory is still 65.0MB. Free memory was 36.7MB in the beginning and 31.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.75ms. Allocated memory is still 65.0MB. Free memory was 31.5MB in the beginning and 38.7MB in the end (delta: -7.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 12483.12ms. Allocated memory was 65.0MB in the beginning and 182.5MB in the end (delta: 117.4MB). Free memory was 38.7MB in the beginning and 118.7MB in the end (delta: -80.0MB). Peak memory consumption was 54.8MB. 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 15:03:17,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c635631f-82e6-4db4-9461-480f5110ee83/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