./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-5.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_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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_467db7e9-f87d-4e94-a252-339610f1331d/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 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:36:08,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:36:08,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:36:08,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:36:08,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:36:08,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:36:08,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:36:08,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:36:08,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:36:08,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:36:08,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:36:08,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:36:08,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:36:08,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:36:08,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:36:08,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:36:08,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:36:08,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:36:08,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:36:08,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:36:08,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:36:08,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:36:08,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:36:08,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:36:08,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:36:08,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:36:08,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:36:08,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:36:08,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:36:08,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:36:08,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:36:08,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:36:08,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:36:08,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:36:08,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:36:08,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:36:08,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:36:08,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:36:08,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:36:08,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:36:08,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:36:08,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:36:08,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:36:08,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:36:08,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:36:08,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:36:08,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:36:08,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:36:08,199 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:36:08,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:36:08,200 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:36:08,200 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:36:08,200 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:36:08,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:36:08,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:36:08,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:36:08,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:36:08,201 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:36:08,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:36:08,202 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:36:08,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:36:08,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:36:08,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:36:08,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:36:08,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:36:08,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:36:08,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:36:08,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:36:08,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:36:08,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:36:08,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:36:08,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:36:08,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:36:08,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:36:08,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:36:08,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:36:08,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:36:08,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:36:08,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:36:08,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:36:08,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:36:08,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:36:08,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:36:08,209 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_467db7e9-f87d-4e94-a252-339610f1331d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d [2021-11-23 17:36:08,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:36:08,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:36:08,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:36:08,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:36:08,641 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:36:08,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-deagle/floating_read-5.i [2021-11-23 17:36:08,730 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/8929b0f04/ed08fbca1e0c48f2aefc120e7ab330cc/FLAG5ce16fa96 [2021-11-23 17:36:09,449 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:36:09,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i [2021-11-23 17:36:09,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/8929b0f04/ed08fbca1e0c48f2aefc120e7ab330cc/FLAG5ce16fa96 [2021-11-23 17:36:09,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/8929b0f04/ed08fbca1e0c48f2aefc120e7ab330cc [2021-11-23 17:36:09,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:36:09,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:36:09,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:36:09,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:36:09,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:36:09,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:36:09" (1/1) ... [2021-11-23 17:36:09,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692e4f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:09, skipping insertion in model container [2021-11-23 17:36:09,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:36:09" (1/1) ... [2021-11-23 17:36:09,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:36:09,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:36:10,301 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-23 17:36:10,316 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_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206] [2021-11-23 17:36:10,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:36:10,338 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:36:10,405 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-23 17:36:10,408 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_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206] [2021-11-23 17:36:10,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:36:10,456 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:36:10,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10 WrapperNode [2021-11-23 17:36:10,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:36:10,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:36:10,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:36:10,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:36:10,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,539 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-11-23 17:36:10,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:36:10,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:36:10,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:36:10,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:36:10,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:36:10,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:36:10,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:36:10,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:36:10,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (1/1) ... [2021-11-23 17:36:10,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:36:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:36:10,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:36:10,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:36:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:36:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:36:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:36:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:36:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:36:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:36:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:36:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-11-23 17:36:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-11-23 17:36:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:36:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:36:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:36:10,714 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 17:36:10,902 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:36:10,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:36:11,066 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:36:11,074 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:36:11,074 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:36:11,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:11 BoogieIcfgContainer [2021-11-23 17:36:11,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:36:11,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:36:11,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:36:11,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:36:11,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:36:09" (1/3) ... [2021-11-23 17:36:11,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa92fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:11, skipping insertion in model container [2021-11-23 17:36:11,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:10" (2/3) ... [2021-11-23 17:36:11,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa92fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:11, skipping insertion in model container [2021-11-23 17:36:11,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:11" (3/3) ... [2021-11-23 17:36:11,087 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-5.i [2021-11-23 17:36:11,094 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:36:11,094 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:36:11,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:36:11,095 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:36:11,120 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,121 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,121 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,122 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,122 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,122 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,122 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,123 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,123 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,123 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,123 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,124 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,124 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,124 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,124 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,125 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,125 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,125 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:11,127 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 17:36:11,132 INFO L158 Benchmark]: Toolchain (without parser) took 1424.31ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.8MB in the beginning and 51.4MB in the end (delta: -3.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,133 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:36:11,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 748.71ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 69.8MB in the end (delta: -22.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.22ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,136 INFO L158 Benchmark]: Boogie Preprocessor took 63.95ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 66.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,137 INFO L158 Benchmark]: RCFGBuilder took 463.15ms. Allocated memory is still 104.9MB. Free memory was 66.6MB in the beginning and 55.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,138 INFO L158 Benchmark]: TraceAbstraction took 51.15ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 51.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:36:11,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 748.71ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 69.8MB in the end (delta: -22.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.22ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.95ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 66.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.15ms. Allocated memory is still 104.9MB. Free memory was 66.6MB in the beginning and 55.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 51.15ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 51.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:36:11,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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_467db7e9-f87d-4e94-a252-339610f1331d/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 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:36:13,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:36:13,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:36:13,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:36:13,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:36:13,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:36:13,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:36:13,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:36:13,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:36:14,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:36:14,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:36:14,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:36:14,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:36:14,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:36:14,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:36:14,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:36:14,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:36:14,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:36:14,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:36:14,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:36:14,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:36:14,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:36:14,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:36:14,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:36:14,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:36:14,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:36:14,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:36:14,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:36:14,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:36:14,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:36:14,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:36:14,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:36:14,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:36:14,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:36:14,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:36:14,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:36:14,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:36:14,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:36:14,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:36:14,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:36:14,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:36:14,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:36:14,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:36:14,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:36:14,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:36:14,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:36:14,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:36:14,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:36:14,107 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:36:14,107 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:36:14,107 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:36:14,107 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:36:14,109 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:36:14,109 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:36:14,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:36:14,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:36:14,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:36:14,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:36:14,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:36:14,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:36:14,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:36:14,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:36:14,113 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:36:14,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:36:14,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:36:14,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:36:14,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:36:14,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:36:14,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:36:14,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:36:14,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:36:14,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:36:14,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:36:14,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:36:14,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:36:14,117 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:36:14,117 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:36:14,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:36:14,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:36:14,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:36:14,119 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_467db7e9-f87d-4e94-a252-339610f1331d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f28efd84e1dbcbcea7683bca483f8f3b9fbdd333eb36f517b9f12d5bccb885d [2021-11-23 17:36:14,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:36:14,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:36:14,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:36:14,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:36:14,635 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:36:14,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-deagle/floating_read-5.i [2021-11-23 17:36:14,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/79c4715e0/4544d5af2df1403597e34888a85b347d/FLAG5a0c7f4d8 [2021-11-23 17:36:15,320 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:36:15,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i [2021-11-23 17:36:15,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/79c4715e0/4544d5af2df1403597e34888a85b347d/FLAG5a0c7f4d8 [2021-11-23 17:36:15,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/data/79c4715e0/4544d5af2df1403597e34888a85b347d [2021-11-23 17:36:15,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:36:15,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:36:15,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:36:15,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:36:15,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:36:15,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:36:15" (1/1) ... [2021-11-23 17:36:15,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7335903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:15, skipping insertion in model container [2021-11-23 17:36:15,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:36:15" (1/1) ... [2021-11-23 17:36:15,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:36:15,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:36:16,224 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-23 17:36:16,245 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_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206] [2021-11-23 17:36:16,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:36:16,273 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:36:16,341 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-23 17:36:16,361 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_467db7e9-f87d-4e94-a252-339610f1331d/sv-benchmarks/c/pthread-deagle/floating_read-5.i[31193,31206] [2021-11-23 17:36:16,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:36:16,418 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:36:16,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16 WrapperNode [2021-11-23 17:36:16,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:36:16,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:36:16,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:36:16,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:36:16,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,501 INFO L137 Inliner]: procedures = 165, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-11-23 17:36:16,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:36:16,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:36:16,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:36:16,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:36:16,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:36:16,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:36:16,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:36:16,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:36:16,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (1/1) ... [2021-11-23 17:36:16,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:36:16,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:36:16,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:36:16,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:36:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:36:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:36:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:36:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:36:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:36:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:36:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:36:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-11-23 17:36:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-11-23 17:36:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:36:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:36:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:36:16,693 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 17:36:16,905 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:36:16,907 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:36:17,177 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:36:17,184 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:36:17,184 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:36:17,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:17 BoogieIcfgContainer [2021-11-23 17:36:17,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:36:17,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:36:17,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:36:17,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:36:17,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:36:15" (1/3) ... [2021-11-23 17:36:17,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca0130f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:17, skipping insertion in model container [2021-11-23 17:36:17,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:36:16" (2/3) ... [2021-11-23 17:36:17,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca0130f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:17, skipping insertion in model container [2021-11-23 17:36:17,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:17" (3/3) ... [2021-11-23 17:36:17,196 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-5.i [2021-11-23 17:36:17,204 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:36:17,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:36:17,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:36:17,205 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:36:17,246 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,247 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,247 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,247 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,250 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,250 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,250 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,251 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,251 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,251 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,251 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,252 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,252 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,252 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,252 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,253 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,254 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,254 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,256 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,256 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:36:17,257 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 17:36:17,265 INFO L158 Benchmark]: Toolchain (without parser) took 1647.56ms. Allocated memory is still 81.8MB. Free memory was 45.9MB in the beginning and 59.2MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:36:17,267 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:36:17,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.93ms. Allocated memory is still 81.8MB. Free memory was 45.7MB in the beginning and 48.9MB in the end (delta: -3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:36:17,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.73ms. Allocated memory is still 81.8MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:36:17,272 INFO L158 Benchmark]: Boogie Preprocessor took 75.01ms. Allocated memory is still 81.8MB. Free memory was 46.8MB in the beginning and 45.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:36:17,273 INFO L158 Benchmark]: RCFGBuilder took 607.98ms. Allocated memory is still 81.8MB. Free memory was 45.4MB in the beginning and 62.9MB in the end (delta: -17.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-23 17:36:17,274 INFO L158 Benchmark]: TraceAbstraction took 72.80ms. Allocated memory is still 81.8MB. Free memory was 62.5MB in the beginning and 59.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:36:17,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.93ms. Allocated memory is still 81.8MB. Free memory was 45.7MB in the beginning and 48.9MB in the end (delta: -3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.73ms. Allocated memory is still 81.8MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.01ms. Allocated memory is still 81.8MB. Free memory was 46.8MB in the beginning and 45.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.98ms. Allocated memory is still 81.8MB. Free memory was 45.4MB in the beginning and 62.9MB in the end (delta: -17.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 72.80ms. Allocated memory is still 81.8MB. Free memory was 62.5MB in the beginning and 59.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:36:17,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467db7e9-f87d-4e94-a252-339610f1331d/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