./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.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_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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_352465c9-6c26-401d-95e4-ce81a023b3e8/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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:04:29,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:04:29,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:04:29,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:04:29,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:04:29,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:04:29,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:04:29,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:04:29,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:04:29,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:04:29,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:04:29,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:04:29,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:04:29,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:04:29,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:04:29,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:04:29,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:04:29,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:04:29,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:04:29,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:04:29,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:04:29,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:04:29,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:04:29,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:04:29,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:04:29,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:04:29,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:04:29,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:04:29,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:04:29,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:04:29,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:04:29,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:04:29,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:04:29,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:04:29,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:04:29,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:04:29,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:04:29,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:04:29,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:04:29,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:04:29,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:04:29,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:04:29,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:04:29,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:04:29,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:04:29,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:04:29,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:04:29,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:04:29,605 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:04:29,606 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:04:29,606 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:04:29,606 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:04:29,607 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:04:29,608 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:04:29,608 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:04:29,608 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:04:29,608 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:04:29,609 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:04:29,609 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:04:29,609 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:04:29,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:04:29,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:04:29,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:04:29,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:04:29,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:04:29,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:04:29,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:04:29,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:04:29,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:04:29,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:04:29,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:04:29,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:04:29,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:04:29,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:04:29,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:04:29,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:04:29,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:04:29,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:04:29,617 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:04:29,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:04:29,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:04:29,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:04:29,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:04:29,618 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_352465c9-6c26-401d-95e4-ce81a023b3e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2021-11-23 17:04:29,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:04:29,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:04:29,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:04:29,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:04:29,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:04:29,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-23 17:04:30,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/24d5ac667/ac1668b947ef4a7cb1076c63418cf8a7/FLAG059c5c248 [2021-11-23 17:04:30,595 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:04:30,604 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-23 17:04:30,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/24d5ac667/ac1668b947ef4a7cb1076c63418cf8a7/FLAG059c5c248 [2021-11-23 17:04:30,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/24d5ac667/ac1668b947ef4a7cb1076c63418cf8a7 [2021-11-23 17:04:30,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:04:30,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:04:30,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:04:30,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:04:30,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:04:30,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:30" (1/1) ... [2021-11-23 17:04:30,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d45a59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:30, skipping insertion in model container [2021-11-23 17:04:30,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:30" (1/1) ... [2021-11-23 17:04:30,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:04:30,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:04:31,166 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:04:31,316 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-23 17:04:31,325 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-23 17:04:31,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:04:31,342 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:04:31,359 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:04:31,382 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-23 17:04:31,386 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-23 17:04:31,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:04:31,431 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:04:31,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31 WrapperNode [2021-11-23 17:04:31,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:04:31,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:04:31,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:04:31,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:04:31,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,508 INFO L137 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2021-11-23 17:04:31,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:04:31,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:04:31,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:04:31,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:04:31,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:04:31,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:04:31,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:04:31,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:04:31,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (1/1) ... [2021-11-23 17:04:31,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:04:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:04:31,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:04:31,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:04:31,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:04:31,643 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-23 17:04:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-23 17:04:31,643 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:04:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:04:31,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:04:31,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:04:31,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:04:31,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:04:31,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:04:31,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:04:31,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:04:31,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:04:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:04:31,647 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 17:04:31,755 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:04:31,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:04:32,003 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:04:32,022 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:04:32,022 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 17:04:32,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:32 BoogieIcfgContainer [2021-11-23 17:04:32,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:04:32,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:04:32,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:04:32,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:04:32,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:04:30" (1/3) ... [2021-11-23 17:04:32,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768ef16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:32, skipping insertion in model container [2021-11-23 17:04:32,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:31" (2/3) ... [2021-11-23 17:04:32,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768ef16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:32, skipping insertion in model container [2021-11-23 17:04:32,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:32" (3/3) ... [2021-11-23 17:04:32,034 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-11-23 17:04:32,040 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:04:32,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:04:32,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:04:32,040 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:04:32,084 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,084 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,085 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,085 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,085 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,085 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,085 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,086 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,086 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,086 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,086 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,087 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,087 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,087 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,087 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,088 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,088 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,088 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,088 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,088 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,089 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,089 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,089 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,090 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,090 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,090 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,090 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,090 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,091 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,091 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,091 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,091 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,092 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,092 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,092 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,092 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,092 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,093 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,093 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,093 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,094 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,094 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,094 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,094 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,095 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,095 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,095 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,095 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,095 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,096 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,109 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,109 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,110 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,110 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,110 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,111 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,111 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,111 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,112 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,114 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,115 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,115 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,116 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,116 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,116 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,117 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,117 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,117 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,118 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,119 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,120 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,121 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,122 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,122 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,123 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,123 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,124 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,129 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,130 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,130 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,130 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,131 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,131 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,131 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,131 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,132 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,132 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,132 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,133 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,133 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,133 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,133 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,134 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,134 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,134 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,134 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:32,136 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 17:04:32,147 INFO L158 Benchmark]: Toolchain (without parser) took 1279.84ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 17:04:32,149 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:04:32,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.97ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 48.0MB in the beginning and 71.1MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:04:32,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.54ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:04:32,154 INFO L158 Benchmark]: Boogie Preprocessor took 46.78ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:04:32,155 INFO L158 Benchmark]: RCFGBuilder took 467.92ms. Allocated memory is still 107.0MB. Free memory was 67.8MB in the beginning and 54.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:04:32,156 INFO L158 Benchmark]: TraceAbstraction took 118.39ms. Allocated memory is still 107.0MB. Free memory was 54.4MB in the beginning and 46.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:04:32,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.97ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 48.0MB in the beginning and 71.1MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.54ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.78ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.92ms. Allocated memory is still 107.0MB. Free memory was 67.8MB in the beginning and 54.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 118.39ms. Allocated memory is still 107.0MB. Free memory was 54.4MB in the beginning and 46.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. 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 17:04:32,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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_352465c9-6c26-401d-95e4-ce81a023b3e8/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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:04:34,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:04:34,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:04:34,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:04:34,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:04:34,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:04:34,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:04:34,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:04:34,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:04:34,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:04:34,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:04:34,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:04:34,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:04:34,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:04:34,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:04:34,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:04:34,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:04:34,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:04:34,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:04:34,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:04:34,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:04:34,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:04:34,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:04:34,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:04:34,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:04:34,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:04:34,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:04:34,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:04:34,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:04:34,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:04:34,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:04:34,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:04:34,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:04:34,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:04:34,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:04:34,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:04:34,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:04:34,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:04:34,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:04:34,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:04:34,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:04:34,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:04:35,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:04:35,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:04:35,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:04:35,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:04:35,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:04:35,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:04:35,016 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:04:35,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:04:35,016 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:04:35,016 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:04:35,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:04:35,017 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:04:35,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:04:35,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:04:35,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:04:35,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:04:35,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:04:35,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:04:35,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:04:35,020 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:04:35,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:04:35,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:04:35,021 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:04:35,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:04:35,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:04:35,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:04:35,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:04:35,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:04:35,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:04:35,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:04:35,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:04:35,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:04:35,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:04:35,024 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:04:35,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:04:35,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:04:35,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:04:35,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:04:35,025 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_352465c9-6c26-401d-95e4-ce81a023b3e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2021-11-23 17:04:35,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:04:35,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:04:35,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:04:35,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:04:35,495 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:04:35,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-23 17:04:35,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/f018142bb/fcf2b4b6a0f54ec5a7bec0eb0c095124/FLAGed1f70570 [2021-11-23 17:04:36,271 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:04:36,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i [2021-11-23 17:04:36,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/f018142bb/fcf2b4b6a0f54ec5a7bec0eb0c095124/FLAGed1f70570 [2021-11-23 17:04:36,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/data/f018142bb/fcf2b4b6a0f54ec5a7bec0eb0c095124 [2021-11-23 17:04:36,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:04:36,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:04:36,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:04:36,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:04:36,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:04:36,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:36" (1/1) ... [2021-11-23 17:04:36,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1459557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:36, skipping insertion in model container [2021-11-23 17:04:36,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:36" (1/1) ... [2021-11-23 17:04:36,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:04:36,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:04:36,759 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:04:36,984 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-23 17:04:36,998 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-23 17:04:37,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:04:37,018 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:04:37,033 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:04:37,056 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2021-11-23 17:04:37,061 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_352465c9-6c26-401d-95e4-ce81a023b3e8/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2021-11-23 17:04:37,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:04:37,120 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:04:37,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37 WrapperNode [2021-11-23 17:04:37,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:04:37,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:04:37,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:04:37,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:04:37,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,178 INFO L137 Inliner]: procedures = 174, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2021-11-23 17:04:37,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:04:37,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:04:37,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:04:37,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:04:37,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:04:37,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:04:37,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:04:37,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:04:37,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (1/1) ... [2021-11-23 17:04:37,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:04:37,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:04:37,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:04:37,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:04:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:04:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-23 17:04:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-23 17:04:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:04:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:04:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:04:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:04:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:04:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:04:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:04:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:04:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:04:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:04:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:04:37,326 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 17:04:37,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:04:37,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:04:37,721 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:04:37,729 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:04:37,730 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 17:04:37,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:37 BoogieIcfgContainer [2021-11-23 17:04:37,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:04:37,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:04:37,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:04:37,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:04:37,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:04:36" (1/3) ... [2021-11-23 17:04:37,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b70a77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:37, skipping insertion in model container [2021-11-23 17:04:37,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:37" (2/3) ... [2021-11-23 17:04:37,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b70a77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:37, skipping insertion in model container [2021-11-23 17:04:37,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:37" (3/3) ... [2021-11-23 17:04:37,742 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-11-23 17:04:37,747 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:04:37,748 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:04:37,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:04:37,748 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:04:37,796 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,798 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,798 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,798 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,799 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,799 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,800 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,800 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,800 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,803 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,804 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,805 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,807 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,807 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,808 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,808 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,816 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,817 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,817 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,817 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,818 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,818 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,818 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,820 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,820 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,820 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,823 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,823 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,823 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,824 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,824 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,824 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,824 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,827 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,828 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,828 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,828 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,829 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,829 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,829 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,834 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,835 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,835 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,835 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,836 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,836 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,836 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,836 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,838 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,838 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,839 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,840 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,840 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,841 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,841 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,841 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,842 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,842 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,842 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,844 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,844 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,844 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,844 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,845 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,845 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,846 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,847 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,848 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,848 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,849 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,849 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,849 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,850 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,850 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,851 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,851 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,852 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,853 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,853 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,854 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,854 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,857 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,860 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,861 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,861 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,861 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:04:37,863 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 17:04:37,870 INFO L158 Benchmark]: Toolchain (without parser) took 1385.14ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 46.3MB in the end (delta: 9.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,872 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:04:37,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.43ms. Allocated memory is still 75.5MB. Free memory was 55.4MB in the beginning and 47.0MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.32ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,876 INFO L158 Benchmark]: Boogie Preprocessor took 44.05ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 43.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,877 INFO L158 Benchmark]: RCFGBuilder took 508.88ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 55.0MB in the end (delta: -11.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,878 INFO L158 Benchmark]: TraceAbstraction took 132.66ms. Allocated memory is still 75.5MB. Free memory was 54.3MB in the beginning and 46.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:04:37,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.43ms. Allocated memory is still 75.5MB. Free memory was 55.4MB in the beginning and 47.0MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.32ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.05ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 43.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.88ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 55.0MB in the end (delta: -11.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 132.66ms. Allocated memory is still 75.5MB. Free memory was 54.3MB in the beginning and 46.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. 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 17:04:37,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352465c9-6c26-401d-95e4-ce81a023b3e8/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