./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-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_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb8c1938cc441082517c5681097f5f6483a36107a8ec46d723b101297930909d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:52,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:52,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:52,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:52,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:52,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:52,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:52,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:52,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:52,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:52,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:52,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:52,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:52,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:52,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:52,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:52,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:52,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:52,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:52,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:52,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:52,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:52,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:52,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:52,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:52,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:52,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:53,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:53,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:53,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:53,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:53,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:53,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:53,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:53,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:53,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:53,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:53,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:53,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:53,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:53,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:53,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:01:53,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:53,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:53,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:53,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:53,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:53,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:53,062 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:53,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:53,063 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:53,063 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:01:53,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:53,065 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:53,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:01:53,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:01:53,066 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:53,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:01:53,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:01:53,067 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:01:53,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:53,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:53,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:01:53,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:53,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:53,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:53,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:53,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:53,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:53,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:53,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:53,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:53,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:53,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:53,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:53,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:53,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:53,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:53,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:01:53,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:01:53,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:53,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:53,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:53,075 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb8c1938cc441082517c5681097f5f6483a36107a8ec46d723b101297930909d [2021-11-23 17:01:53,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:53,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:53,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:53,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:53,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:53,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i [2021-11-23 17:01:53,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/401a22879/0d7d28c01c55445c97da4cd9b5688d0d/FLAGca7d99cde [2021-11-23 17:01:54,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:54,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i [2021-11-23 17:01:54,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/401a22879/0d7d28c01c55445c97da4cd9b5688d0d/FLAGca7d99cde [2021-11-23 17:01:54,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/401a22879/0d7d28c01c55445c97da4cd9b5688d0d [2021-11-23 17:01:54,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:54,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:54,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:54,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:54,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:54,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc970f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54, skipping insertion in model container [2021-11-23 17:01:54,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:54,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:54,810 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_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2021-11-23 17:01:54,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:54,831 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:54,870 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_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2021-11-23 17:01:54,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:54,910 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:54,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54 WrapperNode [2021-11-23 17:01:54,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:54,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:54,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:54,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:54,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,965 INFO L137 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 187 [2021-11-23 17:01:54,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:54,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:54,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:54,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:54,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:54,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:54,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:54,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:54,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:55,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:54" (1/1) ... [2021-11-23 17:01:55,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:55,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:55,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:55,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:01:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:01:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:01:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:01:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:01:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:01:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:55,111 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 17:01:55,256 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:55,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:55,682 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:55,788 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 17:01:55,803 INFO L158 Benchmark]: Toolchain (without parser) took 1426.19ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 76.5MB in the beginning and 124.7MB in the end (delta: -48.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:55,804 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:55,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.78ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 73.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:01:55,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.28ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 71.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:55,808 INFO L158 Benchmark]: Boogie Preprocessor took 31.60ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:55,808 INFO L158 Benchmark]: RCFGBuilder took 796.39ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 69.5MB in the beginning and 124.7MB in the end (delta: -55.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-23 17:01:55,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.78ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 73.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.28ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 71.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.60ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.39ms. Allocated memory was 111.1MB in the beginning and 157.3MB in the end (delta: 46.1MB). Free memory was 69.5MB in the beginning and 124.7MB in the end (delta: -55.2MB). Peak memory consumption was 24.4MB. 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 17:01:55,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb8c1938cc441082517c5681097f5f6483a36107a8ec46d723b101297930909d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:58,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:58,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:58,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:58,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:58,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:58,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:58,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:58,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:58,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:58,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:58,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:58,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:58,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:58,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:58,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:58,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:58,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:58,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:58,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:58,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:58,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:58,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:58,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:58,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:58,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:58,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:58,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:58,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:58,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:58,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:58,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:58,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:58,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:58,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:58,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:58,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:58,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:58,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:58,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:58,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:58,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:01:58,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:58,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:58,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:58,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:58,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:58,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:58,436 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:58,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:58,436 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:58,437 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:58,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:58,437 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:58,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:58,438 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:58,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:58,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:58,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:58,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:58,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:58,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:01:58,440 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:01:58,440 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:01:58,440 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:58,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:58,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:58,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:58,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:58,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:01:58,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:58,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:58,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:58,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:58,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:58,443 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:01:58,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:58,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:58,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:58,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:58,444 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_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb8c1938cc441082517c5681097f5f6483a36107a8ec46d723b101297930909d [2021-11-23 17:01:58,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:58,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:58,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:58,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:58,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:58,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i [2021-11-23 17:01:58,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/9cb719d75/366eb4e5cf6a4d8e86c7abe9c6e5341d/FLAG02577fe08 [2021-11-23 17:01:59,645 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:59,645 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i [2021-11-23 17:01:59,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/9cb719d75/366eb4e5cf6a4d8e86c7abe9c6e5341d/FLAG02577fe08 [2021-11-23 17:01:59,933 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/data/9cb719d75/366eb4e5cf6a4d8e86c7abe9c6e5341d [2021-11-23 17:01:59,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:59,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:59,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:59,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:59,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:59,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ce1dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59, skipping insertion in model container [2021-11-23 17:01:59,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:02:00,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:02:00,435 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_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2021-11-23 17:02:00,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:00,473 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:02:00,544 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_ac340fcc-e559-4101-b87d-90d7a812aa98/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2021-11-23 17:02:00,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:00,611 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:02:00,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00 WrapperNode [2021-11-23 17:02:00,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:02:00,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:00,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:02:00,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:02:00,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,699 INFO L137 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 184 [2021-11-23 17:02:00,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:00,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:02:00,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:02:00,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:02:00,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:02:00,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:02:00,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:02:00,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:02:00,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:00" (1/1) ... [2021-11-23 17:02:00,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:02:00,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:02:00,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:02:00,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:02:00,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:02:00,874 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:02:00,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:02:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:02:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:02:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:02:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:02:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:02:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:02:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:02:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:02:00,878 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:02:01,011 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:02:01,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:02:01,442 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:02:01,627 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 17:02:01,636 INFO L158 Benchmark]: Toolchain (without parser) took 1698.20ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 43.9MB in the beginning and 58.3MB in the end (delta: -14.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,647 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:02:01,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.33ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 39.2MB in the end (delta: 4.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.89ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 36.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,649 INFO L158 Benchmark]: Boogie Preprocessor took 74.90ms. Allocated memory is still 65.0MB. Free memory was 36.6MB in the beginning and 34.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,650 INFO L158 Benchmark]: RCFGBuilder took 857.59ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 34.6MB in the beginning and 58.3MB in the end (delta: -23.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.33ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 39.2MB in the end (delta: 4.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.89ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 36.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.90ms. Allocated memory is still 65.0MB. Free memory was 36.6MB in the beginning and 34.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 857.59ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 34.6MB in the beginning and 58.3MB in the end (delta: -23.7MB). Peak memory consumption was 7.9MB. 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 17:02:01,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac340fcc-e559-4101-b87d-90d7a812aa98/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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