./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c --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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:58,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:58,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:58,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:58,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:58,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:58,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:58,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:58,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:58,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:58,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:58,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:58,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:58,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:58,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:58,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:58,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:58,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:58,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:58,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:58,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:58,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:58,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:58,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:58,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:58,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:58,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:58,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:58,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:58,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:58,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:58,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:58,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:58,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:58,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:58,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:58,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:58,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:58,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:58,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:58,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:58,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:05:58,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:58,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:58,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:58,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:58,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:58,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:58,662 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:58,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:58,662 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:58,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:05:58,664 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:58,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:58,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:05:58,665 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:05:58,665 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:58,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:05:58,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:05:58,666 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:05:58,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:58,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:58,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:05:58,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:58,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:58,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:05:58,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:58,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:05:58,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:58,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:05:58,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:58,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:05:58,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:58,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:58,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:58,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:58,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:58,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:05:58,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:05:58,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:05:58,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:05:58,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:58,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:58,674 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 [2021-11-23 17:05:58,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:58,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:58,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:58,992 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:58,993 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:58,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2021-11-23 17:05:59,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/8cddd0626/d8c0c1b57106447c8c0692e0ac59a167/FLAG0822f47d9 [2021-11-23 17:05:59,563 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:59,564 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2021-11-23 17:05:59,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/8cddd0626/d8c0c1b57106447c8c0692e0ac59a167/FLAG0822f47d9 [2021-11-23 17:05:59,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/8cddd0626/d8c0c1b57106447c8c0692e0ac59a167 [2021-11-23 17:05:59,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:59,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:59,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:59,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:59,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:59,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:59" (1/1) ... [2021-11-23 17:05:59,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da1a82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:59, skipping insertion in model container [2021-11-23 17:05:59,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:59" (1/1) ... [2021-11-23 17:05:59,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:59,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:00,208 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2021-11-23 17:06:00,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:00,225 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:06:00,259 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2021-11-23 17:06:00,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:00,278 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:06:00,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00 WrapperNode [2021-11-23 17:06:00,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:00,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:00,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:06:00,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:06:00,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,338 INFO L137 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 336 [2021-11-23 17:06:00,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:00,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:06:00,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:06:00,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:06:00,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:06:00,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:06:00,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:06:00,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:06:00,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:00" (1/1) ... [2021-11-23 17:06:00,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:00,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:06:00,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:06:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 17:06:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 17:06:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 17:06:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 17:06:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 17:06:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 17:06:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:06:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:06:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:06:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:06:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:06:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:06:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:06:00,468 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 17:06:00,650 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:06:00,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:06:01,159 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:06:01,332 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:06:01,338 INFO L158 Benchmark]: Toolchain (without parser) took 1405.68ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 55.9MB in the end (delta: 32.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-11-23 17:06:01,339 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:01,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.26ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 90.7MB in the end (delta: -3.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:06:01,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.88ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 87.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:01,344 INFO L158 Benchmark]: Boogie Preprocessor took 48.10ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:01,345 INFO L158 Benchmark]: RCFGBuilder took 946.63ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 55.9MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 17:06:01,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.26ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 90.7MB in the end (delta: -3.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.88ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 87.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.10ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 946.63ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 55.9MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:06:01,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:06:03,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:06:03,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:06:03,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:06:04,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:06:04,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:06:04,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:06:04,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:06:04,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:06:04,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:06:04,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:06:04,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:06:04,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:06:04,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:06:04,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:06:04,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:06:04,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:06:04,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:06:04,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:06:04,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:06:04,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:06:04,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:06:04,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:06:04,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:06:04,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:06:04,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:06:04,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:06:04,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:06:04,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:06:04,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:06:04,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:06:04,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:06:04,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:06:04,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:06:04,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:06:04,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:06:04,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:06:04,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:06:04,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:06:04,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:06:04,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:06:04,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:06:04,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:06:04,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:06:04,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:06:04,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:06:04,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:06:04,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:06:04,163 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:06:04,163 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:06:04,164 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:06:04,164 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:06:04,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:06:04,165 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:06:04,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:06:04,167 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:06:04,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:06:04,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:06:04,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:06:04,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:06:04,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:06:04,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:06:04,169 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:06:04,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:06:04,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:06:04,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:06:04,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:06:04,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:06:04,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:06:04,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:06:04,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:06:04,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:04,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:06:04,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:06:04,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:06:04,173 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:06:04,173 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:06:04,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:06:04,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:06:04,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:06:04,174 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 [2021-11-23 17:06:04,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:06:04,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:06:04,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:06:04,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:06:04,606 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:06:04,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2021-11-23 17:06:04,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/42dbcc3c8/bc99fb5e83f942ca9147c66a1959f83f/FLAG2ceb8ccb5 [2021-11-23 17:06:05,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:06:05,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2021-11-23 17:06:05,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/42dbcc3c8/bc99fb5e83f942ca9147c66a1959f83f/FLAG2ceb8ccb5 [2021-11-23 17:06:05,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/data/42dbcc3c8/bc99fb5e83f942ca9147c66a1959f83f [2021-11-23 17:06:05,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:06:05,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:06:05,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:05,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:06:05,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:06:05,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:05" (1/1) ... [2021-11-23 17:06:05,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebb1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:05, skipping insertion in model container [2021-11-23 17:06:05,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:05" (1/1) ... [2021-11-23 17:06:05,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:06:05,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:05,891 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2021-11-23 17:06:05,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:05,925 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:06:05,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:05,989 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2021-11-23 17:06:05,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:05,998 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:06:06,037 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_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2021-11-23 17:06:06,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:06,075 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:06:06,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06 WrapperNode [2021-11-23 17:06:06,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:06,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:06,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:06:06,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:06:06,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,151 INFO L137 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 325 [2021-11-23 17:06:06,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:06,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:06:06,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:06:06,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:06:06,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:06:06,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:06:06,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:06:06,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:06:06,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:06" (1/1) ... [2021-11-23 17:06:06,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:06,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:06:06,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:06:06,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:06:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:06:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:06:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:06:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:06:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 17:06:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 17:06:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 17:06:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 17:06:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 17:06:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 17:06:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:06:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:06:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:06:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:06:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:06:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:06:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:06:06,303 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 17:06:06,502 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:06:06,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:06:07,220 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:06:07,425 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:06:07,434 INFO L158 Benchmark]: Toolchain (without parser) took 1798.69ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 34.7MB in the beginning and 48.8MB in the end (delta: -14.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-23 17:06:07,436 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:07,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.28ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 34.5MB in the beginning and 52.8MB in the end (delta: -18.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:06:07,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.00ms. Allocated memory is still 73.4MB. Free memory was 52.8MB in the beginning and 50.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:07,440 INFO L158 Benchmark]: Boogie Preprocessor took 50.59ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 47.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:07,441 INFO L158 Benchmark]: RCFGBuilder took 1227.43ms. Allocated memory is still 73.4MB. Free memory was 47.7MB in the beginning and 48.8MB in the end (delta: -1.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-11-23 17:06:07,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.28ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 34.5MB in the beginning and 52.8MB in the end (delta: -18.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.00ms. Allocated memory is still 73.4MB. Free memory was 52.8MB in the beginning and 50.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.59ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 47.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1227.43ms. Allocated memory is still 73.4MB. Free memory was 47.7MB in the beginning and 48.8MB in the end (delta: -1.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:06:07,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9655be8a-0f96-40d3-9e1e-b22745b7b9f2/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