./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/09_fmaxsym.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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/09_fmaxsym.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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 0bf02669c3dd381b0745ab8dce392518dfe698af15c4a94bd383f1dab20a8c06 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:50,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:50,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:50,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:50,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:50,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:50,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:50,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:50,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:50,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:50,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:50,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:50,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:50,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:50,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:50,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:50,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:50,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:50,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:50,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:50,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:50,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:50,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:50,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:50,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:50,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:50,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:50,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:50,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:50,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:50,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:50,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:50,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:50,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:50,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:50,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:50,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:50,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:50,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:50,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:50,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:50,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:10:50,749 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:50,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:50,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:50,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:50,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:50,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:50,752 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:50,752 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:50,752 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:50,752 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:10:50,753 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:50,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:50,754 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:10:50,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:10:50,755 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:50,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:10:50,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:10:50,755 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:10:50,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:50,756 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:50,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:10:50,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:50,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:50,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:50,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:50,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:50,758 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:50,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:50,758 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:50,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:50,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:50,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:50,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:50,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:50,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:50,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:50,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:10:50,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:10:50,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:50,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:50,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:50,762 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf02669c3dd381b0745ab8dce392518dfe698af15c4a94bd383f1dab20a8c06 [2021-11-23 17:10:51,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:51,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:51,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:51,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:51,147 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:51,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/09_fmaxsym.i [2021-11-23 17:10:51,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/086bb1315/4ccec112b87d4660be47baa0b4bb3b74/FLAG9ba1b5e9b [2021-11-23 17:10:51,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:51,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i [2021-11-23 17:10:51,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/086bb1315/4ccec112b87d4660be47baa0b4bb3b74/FLAG9ba1b5e9b [2021-11-23 17:10:52,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/086bb1315/4ccec112b87d4660be47baa0b4bb3b74 [2021-11-23 17:10:52,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:52,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:52,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:52,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:52,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:52,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee97c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52, skipping insertion in model container [2021-11-23 17:10:52,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:52,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:52,574 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i[30422,30435] [2021-11-23 17:10:52,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:52,601 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:52,636 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i[30422,30435] [2021-11-23 17:10:52,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:52,679 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:52,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52 WrapperNode [2021-11-23 17:10:52,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:52,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:52,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:52,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:52,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,744 INFO L137 Inliner]: procedures = 171, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2021-11-23 17:10:52,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:52,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:52,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:52,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:52,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:52,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:52,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:52,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:52,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:52" (1/1) ... [2021-11-23 17:10:52,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:52,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:52,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:52,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:10:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:10:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:10:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:52,858 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 17:10:53,014 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:53,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:53,264 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:53,288 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 17:10:53,293 INFO L158 Benchmark]: Toolchain (without parser) took 1175.14ms. Allocated memory is still 94.4MB. Free memory was 57.1MB in the beginning and 44.5MB in the end (delta: 12.7MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-11-23 17:10:53,293 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:53,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.09ms. Allocated memory is still 94.4MB. Free memory was 57.0MB in the beginning and 60.7MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:10:53,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.21ms. Allocated memory is still 94.4MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:53,296 INFO L158 Benchmark]: Boogie Preprocessor took 27.76ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 57.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:53,297 INFO L158 Benchmark]: RCFGBuilder took 517.07ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 44.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:53,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.09ms. Allocated memory is still 94.4MB. Free memory was 57.0MB in the beginning and 60.7MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.21ms. Allocated memory is still 94.4MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.76ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 57.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.07ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 44.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:10:53,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/09_fmaxsym.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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 0bf02669c3dd381b0745ab8dce392518dfe698af15c4a94bd383f1dab20a8c06 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:55,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:55,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:55,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:55,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:55,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:55,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:55,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:55,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:55,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:55,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:55,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:55,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:55,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:55,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:55,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:55,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:55,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:55,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:55,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:55,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:55,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:55,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:55,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:55,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:55,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:55,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:56,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:56,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:56,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:56,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:56,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:56,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:56,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:56,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:56,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:56,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:56,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:56,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:56,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:56,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:56,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:10:56,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:56,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:56,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:56,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:56,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:56,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:56,067 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:56,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:56,067 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:56,067 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:56,068 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:56,069 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:56,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:56,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:56,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:56,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:56,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:56,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:56,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:56,072 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:10:56,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:10:56,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:10:56,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:56,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:56,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:56,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:56,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:56,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:10:56,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:56,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:56,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:56,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:56,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:56,076 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:10:56,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:56,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:56,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:56,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:56,077 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf02669c3dd381b0745ab8dce392518dfe698af15c4a94bd383f1dab20a8c06 [2021-11-23 17:10:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:56,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:56,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:56,489 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:56,490 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:56,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/09_fmaxsym.i [2021-11-23 17:10:56,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/120171279/31553ebc8d4849a5817ea1df363ced68/FLAG1486d395b [2021-11-23 17:10:57,233 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:57,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i [2021-11-23 17:10:57,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/120171279/31553ebc8d4849a5817ea1df363ced68/FLAG1486d395b [2021-11-23 17:10:57,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/data/120171279/31553ebc8d4849a5817ea1df363ced68 [2021-11-23 17:10:57,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:57,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:57,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:57,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:57,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:57,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:57" (1/1) ... [2021-11-23 17:10:57,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64928ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:57, skipping insertion in model container [2021-11-23 17:10:57,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:57" (1/1) ... [2021-11-23 17:10:57,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:57,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:57,923 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i[30422,30435] [2021-11-23 17:10:57,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:57,963 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:58,028 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_0fa6a7c3-9321-4245-bb88-c5dee67ba030/sv-benchmarks/c/pthread-ext/09_fmaxsym.i[30422,30435] [2021-11-23 17:10:58,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:58,084 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58 WrapperNode [2021-11-23 17:10:58,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:58,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:58,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:58,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:58,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,161 INFO L137 Inliner]: procedures = 175, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2021-11-23 17:10:58,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:58,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:58,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:58,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:58,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:58,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:58,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:58,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:58,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:58" (1/1) ... [2021-11-23 17:10:58,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:58,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:58,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:58,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:10:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:10:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:10:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:10:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:58,307 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 17:10:58,417 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:58,419 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:58,662 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:58,685 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 17:10:58,690 INFO L158 Benchmark]: Toolchain (without parser) took 1219.55ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.5MB in the beginning and 33.2MB in the end (delta: -5.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:58,690 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:58,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.59ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.2MB in the beginning and 37.4MB in the end (delta: -10.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 17:10:58,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.69ms. Allocated memory is still 65.0MB. Free memory was 37.2MB in the beginning and 35.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:58,693 INFO L158 Benchmark]: Boogie Preprocessor took 67.31ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 45.8MB in the end (delta: -10.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 17:10:58,694 INFO L158 Benchmark]: RCFGBuilder took 457.42ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 33.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:58,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 614.59ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.2MB in the beginning and 37.4MB in the end (delta: -10.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.69ms. Allocated memory is still 65.0MB. Free memory was 37.2MB in the beginning and 35.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.31ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 45.8MB in the end (delta: -10.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * RCFGBuilder took 457.42ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 33.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:10:58,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fa6a7c3-9321-4245-bb88-c5dee67ba030/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