./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-counter-determinism.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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:16,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:16,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:16,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:16,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:16,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:16,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:16,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:16,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:16,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:16,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:16,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:16,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:16,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:16,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:16,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:16,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:16,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:16,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:16,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:16,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:16,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:16,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:16,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:16,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:16,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:16,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:16,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:16,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:16,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:16,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:16,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:16,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:16,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:16,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:16,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:16,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:16,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:16,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:16,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:16,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:16,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:53:16,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:16,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:16,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:16,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:16,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:16,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:16,771 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:16,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:16,771 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:16,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:53:16,772 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:16,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:16,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:53:16,772 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:53:16,772 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:16,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:53:16,773 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:53:16,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:53:16,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:16,774 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:16,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:53:16,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:16,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:16,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:16,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:16,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:16,776 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:16,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:16,776 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:16,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:16,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:16,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:16,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:16,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:16,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:16,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:16,778 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:53:16,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:53:16,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:16,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:16,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:16,779 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 [2021-11-23 16:53:17,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:17,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:17,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:17,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:17,082 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:17,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2021-11-23 16:53:17,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/5aa2a2d9c/f1abc340295d460d983532e7f2fa18c1/FLAGfc358520e [2021-11-23 16:53:17,660 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:17,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2021-11-23 16:53:17,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/5aa2a2d9c/f1abc340295d460d983532e7f2fa18c1/FLAGfc358520e [2021-11-23 16:53:18,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/5aa2a2d9c/f1abc340295d460d983532e7f2fa18c1 [2021-11-23 16:53:18,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:18,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:18,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:18,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:18,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:18,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6567c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18, skipping insertion in model container [2021-11-23 16:53:18,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:18,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:18,266 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2021-11-23 16:53:18,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:18,278 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:18,299 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2021-11-23 16:53:18,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:18,315 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:18,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18 WrapperNode [2021-11-23 16:53:18,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:18,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:18,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:18,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:18,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,359 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2021-11-23 16:53:18,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:18,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:18,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:18,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:18,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:18,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:18,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:18,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:18,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:18,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:18,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:18,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 16:53:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 16:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 16:53:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 16:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 16:53:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 16:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 16:53:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 16:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:53:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:53:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:53:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:53:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:53:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:53:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:53:18,512 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 16:53:18,630 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:18,633 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:18,933 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:18,976 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 16:53:18,980 INFO L158 Benchmark]: Toolchain (without parser) took 941.87ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 81.7MB in the end (delta: 9.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,981 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 101.8MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:18,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.32ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 100.5MB in the end (delta: -9.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.26ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 99.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,984 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 127.9MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:18,985 INFO L158 Benchmark]: RCFGBuilder took 586.94ms. Allocated memory is still 127.9MB. Free memory was 97.7MB in the beginning and 81.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 101.8MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.32ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 100.5MB in the end (delta: -9.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.26ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 99.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 127.9MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 586.94ms. Allocated memory is still 127.9MB. Free memory was 97.7MB in the beginning and 81.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. 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 16:53:19,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:21,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:21,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:21,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:21,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:21,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:21,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:21,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:21,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:21,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:21,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:21,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:21,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:21,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:21,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:21,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:21,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:21,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:21,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:21,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:21,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:21,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:21,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:21,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:21,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:21,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:21,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:21,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:21,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:21,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:21,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:21,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:21,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:21,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:21,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:21,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:21,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:21,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:21,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:21,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:21,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:21,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:53:21,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:21,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:21,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:21,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:21,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:21,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:21,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:21,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:21,682 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:21,682 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:21,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:21,684 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:21,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:21,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:21,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:21,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:21,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:21,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:21,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:21,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:21,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:21,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:21,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:53:21,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:21,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:21,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:21,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:21,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:21,689 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:53:21,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:53:21,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:21,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:21,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:21,691 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 [2021-11-23 16:53:22,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:22,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:22,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:22,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:22,129 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:22,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2021-11-23 16:53:22,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/7ac9fe31a/9aef0bb5a989454db63c2058b5b373bd/FLAGd0b1207c4 [2021-11-23 16:53:22,762 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:22,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2021-11-23 16:53:22,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/7ac9fe31a/9aef0bb5a989454db63c2058b5b373bd/FLAGd0b1207c4 [2021-11-23 16:53:23,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/data/7ac9fe31a/9aef0bb5a989454db63c2058b5b373bd [2021-11-23 16:53:23,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:23,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:23,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:23,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:23,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:23,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd34c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23, skipping insertion in model container [2021-11-23 16:53:23,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:23,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:23,364 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2021-11-23 16:53:23,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:23,379 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:23,458 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_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2021-11-23 16:53:23,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:23,475 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:23,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23 WrapperNode [2021-11-23 16:53:23,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:23,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:23,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:23,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:23,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,514 INFO L137 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2021-11-23 16:53:23,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:23,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:23,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:23,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:23,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:23,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:23,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:23,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:23,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:23" (1/1) ... [2021-11-23 16:53:23,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:23,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:23,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:23,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 16:53:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 16:53:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 16:53:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 16:53:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 16:53:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 16:53:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:53:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 16:53:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 16:53:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:53:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:53:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:53:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:53:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:53:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:53:23,656 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 16:53:23,768 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:23,769 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:24,141 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:24,237 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 16:53:24,246 INFO L158 Benchmark]: Toolchain (without parser) took 1128.16ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 26.3MB in the end (delta: 16.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-23 16:53:24,248 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 46.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:24,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.00ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 45.1MB in the end (delta: -2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:53:24,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.74ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:24,252 INFO L158 Benchmark]: Boogie Preprocessor took 31.70ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:24,253 INFO L158 Benchmark]: RCFGBuilder took 696.38ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 26.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:53:24,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 46.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.00ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 45.1MB in the end (delta: -2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.74ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.70ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 696.38ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 26.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. 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 16:53:24,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6072c494-5b0a-4ffe-9363-f132a5b1e8c5/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