./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.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_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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_5630e88e-bc2c-48b2-9e2a-8181f4917379/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 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:51:30,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:51:30,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:51:30,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:51:30,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:51:30,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:51:30,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:51:30,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:51:30,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:51:30,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:51:30,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:51:30,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:51:30,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:51:30,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:51:30,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:51:30,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:51:30,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:51:30,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:51:30,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:51:30,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:51:30,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:51:30,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:51:30,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:51:30,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:51:30,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:51:30,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:51:30,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:51:30,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:51:30,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:51:30,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:51:30,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:51:30,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:51:30,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:51:30,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:51:30,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:51:30,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:51:30,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:51:30,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:51:30,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:51:30,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:51:30,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:51:30,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:51:30,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:51:30,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:51:30,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:51:30,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:51:30,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:51:30,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:51:30,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:51:30,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:51:30,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:51:30,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:51:30,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:51:30,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:51:30,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:51:30,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:51:30,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:51:30,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:51:30,810 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:51:30,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:51:30,811 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:51:30,811 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:51:30,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:51:30,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:30,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:51:30,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:51:30,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:51:30,814 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:51:30,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:51:30,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:51:30,814 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_5630e88e-bc2c-48b2-9e2a-8181f4917379/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2021-11-23 15:51:31,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:51:31,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:51:31,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:51:31,186 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:51:31,187 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:51:31,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-23 15:51:31,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/e12ceca02/88105a5cf1b143f8b6f95a28886833ae/FLAGc668da0d5 [2021-11-23 15:51:32,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:51:32,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-23 15:51:32,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/e12ceca02/88105a5cf1b143f8b6f95a28886833ae/FLAGc668da0d5 [2021-11-23 15:51:32,279 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/e12ceca02/88105a5cf1b143f8b6f95a28886833ae [2021-11-23 15:51:32,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:51:32,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:51:32,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:32,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:51:32,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:51:32,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:32,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7740d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32, skipping insertion in model container [2021-11-23 15:51:32,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:32,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:51:32,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:51:32,843 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_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-23 15:51:32,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:32,890 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:51:32,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-23 15:51:32,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:33,059 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:51:33,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33 WrapperNode [2021-11-23 15:51:33,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:33,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:33,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:51:33,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:51:33,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,168 INFO L137 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 147 [2021-11-23 15:51:33,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:33,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:51:33,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:51:33,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:51:33,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:51:33,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:51:33,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:51:33,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:51:33,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:33" (1/1) ... [2021-11-23 15:51:33,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:33,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:51:33,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:51:33,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:51:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:51:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:51:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:51:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:51:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:51:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:51:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:51:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:51:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:51:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:51:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:51:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:51:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:51:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:51:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:51:33,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:51:33,352 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:51:33,487 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:51:33,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:51:33,934 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:51:34,016 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:51:34,021 INFO L158 Benchmark]: Toolchain (without parser) took 1732.48ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 48.1MB in the beginning and 66.5MB in the end (delta: -18.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-23 15:51:34,022 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:51:34,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.11ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 47.9MB in the beginning and 88.9MB in the end (delta: -41.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:51:34,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.44ms. Allocated memory is still 123.7MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:34,026 INFO L158 Benchmark]: Boogie Preprocessor took 53.89ms. Allocated memory is still 123.7MB. Free memory was 86.8MB in the beginning and 85.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:34,026 INFO L158 Benchmark]: RCFGBuilder took 793.94ms. Allocated memory is still 123.7MB. Free memory was 85.4MB in the beginning and 66.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 15:51:34,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.11ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 47.9MB in the beginning and 88.9MB in the end (delta: -41.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.44ms. Allocated memory is still 123.7MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.89ms. Allocated memory is still 123.7MB. Free memory was 86.8MB in the beginning and 85.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 793.94ms. Allocated memory is still 123.7MB. Free memory was 85.4MB in the beginning and 66.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:51:34,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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_5630e88e-bc2c-48b2-9e2a-8181f4917379/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 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:51:36,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:51:36,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:51:36,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:51:36,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:51:36,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:51:36,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:51:36,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:51:36,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:51:36,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:51:36,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:51:36,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:51:36,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:51:36,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:51:36,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:51:36,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:51:36,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:51:36,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:51:36,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:51:36,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:51:36,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:51:36,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:51:36,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:51:36,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:51:36,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:51:36,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:51:36,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:51:36,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:51:36,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:51:36,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:51:36,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:51:36,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:51:36,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:51:36,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:51:36,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:51:36,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:51:36,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:51:36,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:51:36,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:51:36,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:51:36,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:51:36,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:51:37,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:51:37,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:51:37,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:51:37,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:51:37,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:51:37,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:51:37,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:51:37,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:51:37,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:51:37,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:51:37,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:51:37,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:51:37,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:51:37,031 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:51:37,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:51:37,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:51:37,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:51:37,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:51:37,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:51:37,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:51:37,033 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:51:37,033 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:51:37,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:51:37,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:37,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:51:37,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:51:37,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:51:37,035 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:51:37,035 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:51:37,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:51:37,036 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:51:37,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:51:37,037 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_5630e88e-bc2c-48b2-9e2a-8181f4917379/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79f59481c49375d27b8409383d6d600e90e5ee29536655deda4d0ae0ca7faefc [2021-11-23 15:51:37,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:51:37,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:51:37,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:51:37,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:51:37,482 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:51:37,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-23 15:51:37,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/0dbfcd23f/7737c9cd5a9e43aca1206e1aac391b8b/FLAG86e1b09f7 [2021-11-23 15:51:38,333 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:51:38,334 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i [2021-11-23 15:51:38,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/0dbfcd23f/7737c9cd5a9e43aca1206e1aac391b8b/FLAG86e1b09f7 [2021-11-23 15:51:38,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/data/0dbfcd23f/7737c9cd5a9e43aca1206e1aac391b8b [2021-11-23 15:51:38,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:51:38,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:51:38,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:38,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:51:38,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:51:38,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:38" (1/1) ... [2021-11-23 15:51:38,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22188629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:38, skipping insertion in model container [2021-11-23 15:51:38,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:38" (1/1) ... [2021-11-23 15:51:38,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:51:38,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:51:38,876 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_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-23 15:51:38,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:38,914 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:51:38,999 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_5630e88e-bc2c-48b2-9e2a-8181f4917379/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2021-11-23 15:51:39,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:39,067 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:51:39,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39 WrapperNode [2021-11-23 15:51:39,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:39,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:39,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:51:39,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:51:39,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,167 INFO L137 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 144 [2021-11-23 15:51:39,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:39,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:51:39,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:51:39,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:51:39,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:51:39,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:51:39,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:51:39,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:51:39,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39" (1/1) ... [2021-11-23 15:51:39,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:39,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:51:39,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:51:39,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:51:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:51:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:51:39,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:51:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:51:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:51:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:51:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:51:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:51:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:51:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:51:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:51:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:51:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:51:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:51:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:51:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:51:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:51:39,367 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:51:39,615 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:51:39,618 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:51:39,960 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:51:40,051 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:51:40,057 INFO L158 Benchmark]: Toolchain (without parser) took 1682.20ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 61.1MB in the beginning and 75.1MB in the end (delta: -14.0MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2021-11-23 15:51:40,057 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 79.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:51:40,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.99ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 50.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:51:40,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.95ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:40,060 INFO L158 Benchmark]: Boogie Preprocessor took 78.98ms. Allocated memory is still 79.7MB. Free memory was 48.5MB in the beginning and 46.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:40,061 INFO L158 Benchmark]: RCFGBuilder took 805.73ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 46.6MB in the beginning and 75.1MB in the end (delta: -28.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-23 15:51:40,075 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 79.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.99ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 50.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.95ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.98ms. Allocated memory is still 79.7MB. Free memory was 48.5MB in the beginning and 46.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 805.73ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 46.6MB in the beginning and 75.1MB in the end (delta: -28.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:51:40,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5630e88e-bc2c-48b2-9e2a-8181f4917379/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