./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.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_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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_4d5e0598-d14f-4810-91a9-88e514aec1e8/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 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:51:47,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:51:47,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:51:48,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:51:48,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:51:48,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:51:48,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:51:48,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:51:48,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:51:48,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:51:48,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:51:48,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:51:48,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:51:48,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:51:48,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:51:48,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:51:48,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:51:48,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:51:48,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:51:48,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:51:48,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:51:48,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:51:48,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:51:48,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:51:48,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:51:48,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:51:48,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:51:48,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:51:48,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:51:48,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:51:48,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:51:48,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:51:48,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:51:48,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:51:48,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:51:48,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:51:48,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:51:48,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:51:48,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:51:48,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:51:48,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:51:48,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:51:48,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:51:48,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:51:48,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:51:48,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:51:48,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:51:48,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:51:48,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:51:48,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:51:48,124 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:51:48,124 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:51:48,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:51:48,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:51:48,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:51:48,126 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:51:48,126 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:51:48,127 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:51:48,127 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:51:48,127 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:51:48,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:51:48,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:51:48,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:51:48,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:51:48,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:51:48,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:51:48,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:51:48,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:51:48,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:51:48,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:51:48,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:51:48,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:51:48,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:51:48,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:51:48,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:48,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:51:48,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:51:48,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:51:48,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:51:48,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:51:48,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:51:48,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:51:48,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:51:48,135 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 [2021-11-23 16:51:48,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:51:48,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:51:48,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:51:48,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:51:48,444 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:51:48,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2021-11-23 16:51:48,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/a9aa373f8/e7093217091a4251af10b41d2a29d566/FLAGfe7bee44c [2021-11-23 16:51:49,050 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:51:49,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2021-11-23 16:51:49,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/a9aa373f8/e7093217091a4251af10b41d2a29d566/FLAGfe7bee44c [2021-11-23 16:51:49,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/a9aa373f8/e7093217091a4251af10b41d2a29d566 [2021-11-23 16:51:49,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:51:49,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:51:49,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:49,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:51:49,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:51:49,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cb3587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49, skipping insertion in model container [2021-11-23 16:51:49,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:51:49,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:51:49,660 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2021-11-23 16:51:49,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:49,677 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:51:49,701 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2021-11-23 16:51:49,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:49,719 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:51:49,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49 WrapperNode [2021-11-23 16:51:49,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:49,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:49,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:51:49,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:51:49,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,763 INFO L137 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2021-11-23 16:51:49,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:49,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:51:49,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:51:49,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:51:49,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:51:49,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:51:49,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:51:49,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:51:49,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:49" (1/1) ... [2021-11-23 16:51:49,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:51:49,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:51:49,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:51:49,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:51:49,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 16:51:49,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 16:51:49,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 16:51:49,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:51:49,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:51:49,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:51:49,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 16:51:49,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:51:49,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:51:49,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:51:49,900 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 16:51:50,065 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:51:50,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:51:50,437 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:51:50,469 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 16:51:50,473 INFO L158 Benchmark]: Toolchain (without parser) took 1092.40ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 61.0MB in the end (delta: 8.3MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-23 16:51:50,474 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:51:50,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.41ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 81.5MB in the end (delta: -12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:51:50,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:51:50,478 INFO L158 Benchmark]: Boogie Preprocessor took 44.56ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:51:50,479 INFO L158 Benchmark]: RCFGBuilder took 660.13ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 61.0MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 16:51:50,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.41ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 81.5MB in the end (delta: -12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.56ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 660.13ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 61.0MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:51:50,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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_4d5e0598-d14f-4810-91a9-88e514aec1e8/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 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:51:53,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:51:53,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:51:53,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:51:53,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:51:53,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:51:53,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:51:53,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:51:53,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:51:53,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:51:53,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:51:53,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:51:53,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:51:53,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:51:53,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:51:53,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:51:53,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:51:53,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:51:53,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:51:53,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:51:53,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:51:53,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:51:53,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:51:53,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:51:53,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:51:53,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:51:53,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:51:53,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:51:53,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:51:53,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:51:53,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:51:53,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:51:53,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:51:53,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:51:53,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:51:53,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:51:53,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:51:53,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:51:53,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:51:53,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:51:53,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:51:53,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:51:53,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:51:53,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:51:53,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:51:53,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:51:53,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:51:53,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:51:53,284 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:51:53,284 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:51:53,284 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:51:53,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:51:53,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:51:53,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:51:53,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:51:53,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:51:53,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:51:53,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:51:53,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:51:53,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:51:53,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:51:53,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:51:53,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:51:53,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:51:53,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:51:53,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:51:53,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:53,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:51:53,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:51:53,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:51:53,292 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:51:53,292 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:51:53,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:51:53,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:51:53,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:51:53,293 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 [2021-11-23 16:51:53,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:51:53,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:51:53,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:51:53,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:51:53,703 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:51:53,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2021-11-23 16:51:53,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/90ec7f30c/9e4de6f1c5bd4e3cacb38f684cacc171/FLAGae595422d [2021-11-23 16:51:54,377 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:51:54,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2021-11-23 16:51:54,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/90ec7f30c/9e4de6f1c5bd4e3cacb38f684cacc171/FLAGae595422d [2021-11-23 16:51:54,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/data/90ec7f30c/9e4de6f1c5bd4e3cacb38f684cacc171 [2021-11-23 16:51:54,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:51:54,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:51:54,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:54,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:51:54,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:51:54,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:54" (1/1) ... [2021-11-23 16:51:54,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4844ab23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:54, skipping insertion in model container [2021-11-23 16:51:54,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:54" (1/1) ... [2021-11-23 16:51:54,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:51:54,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:51:55,008 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2021-11-23 16:51:55,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:55,028 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:51:55,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:51:55,065 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2021-11-23 16:51:55,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:55,081 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:51:55,123 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_4d5e0598-d14f-4810-91a9-88e514aec1e8/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2021-11-23 16:51:55,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:55,145 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:51:55,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55 WrapperNode [2021-11-23 16:51:55,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:55,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:55,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:51:55,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:51:55,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,195 INFO L137 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2021-11-23 16:51:55,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:55,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:51:55,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:51:55,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:51:55,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:51:55,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:51:55,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:51:55,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:51:55,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:55" (1/1) ... [2021-11-23 16:51:55,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:51:55,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:51:55,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:51:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:51:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:51:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:51:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:51:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 16:51:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 16:51:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 16:51:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 16:51:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 16:51:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 16:51:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:51:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:51:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 16:51:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:51:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:51:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:51:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:51:55,358 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 16:51:55,513 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:51:55,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:51:55,962 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:51:56,050 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 16:51:56,060 INFO L158 Benchmark]: Toolchain (without parser) took 1348.54ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 29.0MB in the end (delta: 8.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-11-23 16:51:56,061 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 39.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:51:56,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.19ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 38.3MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:51:56,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.75ms. Allocated memory is still 60.8MB. Free memory was 38.3MB in the beginning and 36.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:51:56,063 INFO L158 Benchmark]: Boogie Preprocessor took 63.58ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 34.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:51:56,064 INFO L158 Benchmark]: RCFGBuilder took 796.70ms. Allocated memory is still 60.8MB. Free memory was 34.6MB in the beginning and 29.0MB in the end (delta: 5.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-11-23 16:51:56,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 39.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.19ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 38.3MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.75ms. Allocated memory is still 60.8MB. Free memory was 38.3MB in the beginning and 36.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.58ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 34.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.70ms. Allocated memory is still 60.8MB. Free memory was 34.6MB in the beginning and 29.0MB in the end (delta: 5.6MB). Peak memory consumption was 10.2MB. 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 16:51:56,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e0598-d14f-4810-91a9-88e514aec1e8/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