./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.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_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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_80c81430-eda4-4619-9433-83c0de93b4e4/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 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:12,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:12,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:12,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:12,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:12,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:12,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:12,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:12,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:12,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:12,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:12,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:12,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:12,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:12,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:12,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:12,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:12,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:12,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:12,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:12,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:12,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:12,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:12,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:12,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:12,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:12,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:12,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:12,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:12,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:12,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:12,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:12,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:12,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:12,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:12,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:12,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:12,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:12,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:12,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:12,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:12,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:12:12,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:12,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:12,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:12,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:12,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:12,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:12,616 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:12,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:12,616 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:12,616 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:12:12,616 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:12,617 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:12,617 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:12:12,617 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:12:12,617 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:12,617 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:12:12,617 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:12:12,618 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:12:12,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:12,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:12,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:12,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:12,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:12,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:12,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:12,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:12,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:12,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:12,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:12,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:12,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:12,623 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_80c81430-eda4-4619-9433-83c0de93b4e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2021-11-23 17:12:12,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:12,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:12,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:12,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:12,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:12,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-11-23 17:12:13,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/657a8d966/aa85c2de7e07465aa237f2cc55c28ae4/FLAG211c1fdff [2021-11-23 17:12:13,520 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:13,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-11-23 17:12:13,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/657a8d966/aa85c2de7e07465aa237f2cc55c28ae4/FLAG211c1fdff [2021-11-23 17:12:13,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/657a8d966/aa85c2de7e07465aa237f2cc55c28ae4 [2021-11-23 17:12:13,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:13,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:13,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:13,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:13,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:13,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:13" (1/1) ... [2021-11-23 17:12:13,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb7ace8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:13, skipping insertion in model container [2021-11-23 17:12:13,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:13" (1/1) ... [2021-11-23 17:12:13,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:13,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:14,166 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_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2021-11-23 17:12:14,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:14,185 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:14,213 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_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2021-11-23 17:12:14,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:14,232 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:14,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14 WrapperNode [2021-11-23 17:12:14,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:14,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:14,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:14,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:14,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,287 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 275 [2021-11-23 17:12:14,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:14,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:14,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:14,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:14,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:14,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:14,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:14,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:14,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:14" (1/1) ... [2021-11-23 17:12:14,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:14,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:14,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:14,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:12:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:12:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:12:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 17:12:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 17:12:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 17:12:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:12:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:12:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:12:14,432 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:12:14,550 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:14,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:15,052 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:15,189 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:15,195 INFO L158 Benchmark]: Toolchain (without parser) took 1338.02ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 51.0MB in the end (delta: 21.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-11-23 17:12:15,196 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 79.8MB in the beginning and 79.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:15,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 81.0MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:12:15,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.76ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 78.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:15,201 INFO L158 Benchmark]: Boogie Preprocessor took 37.99ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:15,202 INFO L158 Benchmark]: RCFGBuilder took 865.23ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 51.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 17:12:15,210 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 107.0MB. Free memory was 79.8MB in the beginning and 79.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 81.0MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.76ms. Allocated memory is still 107.0MB. Free memory was 81.0MB in the beginning and 78.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.99ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 76.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 865.23ms. Allocated memory is still 107.0MB. Free memory was 76.6MB in the beginning and 51.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. 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 17:12:15,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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_80c81430-eda4-4619-9433-83c0de93b4e4/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 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:17,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:17,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:17,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:17,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:17,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:17,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:17,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:17,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:17,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:17,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:17,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:17,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:17,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:17,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:17,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:17,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:17,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:17,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:17,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:17,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:17,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:17,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:17,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:17,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:17,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:17,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:17,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:17,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:17,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:17,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:17,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:17,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:17,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:17,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:17,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:17,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:17,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:17,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:17,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:17,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:17,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:12:17,813 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:17,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:17,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:17,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:17,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:17,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:17,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:17,816 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:17,816 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:17,816 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:17,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:17,817 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:17,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:17,819 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:17,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:12:17,820 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:12:17,821 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:12:17,821 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:17,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:17,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:17,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:17,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:17,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:12:17,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:17,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:17,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:17,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:17,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:17,823 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:12:17,824 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:17,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:17,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:17,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:17,825 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_80c81430-eda4-4619-9433-83c0de93b4e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2021-11-23 17:12:18,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:18,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:18,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:18,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:18,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:18,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-11-23 17:12:18,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/d1131b72d/128f170f75994b3d87d33b1b66bfbfaa/FLAGf1557dd0d [2021-11-23 17:12:18,983 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:18,988 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2021-11-23 17:12:19,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/d1131b72d/128f170f75994b3d87d33b1b66bfbfaa/FLAGf1557dd0d [2021-11-23 17:12:19,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/data/d1131b72d/128f170f75994b3d87d33b1b66bfbfaa [2021-11-23 17:12:19,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:19,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:19,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:19,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:19,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:19,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d58c5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19, skipping insertion in model container [2021-11-23 17:12:19,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:19,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:19,628 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_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2021-11-23 17:12:19,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:19,692 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:12:19,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:19,764 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_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2021-11-23 17:12:19,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:19,773 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:19,808 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_80c81430-eda4-4619-9433-83c0de93b4e4/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2021-11-23 17:12:19,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:19,839 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:19,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19 WrapperNode [2021-11-23 17:12:19,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:19,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:19,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:19,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:19,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,910 INFO L137 Inliner]: procedures = 28, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 267 [2021-11-23 17:12:19,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:19,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:19,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:19,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:19,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:19,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:20,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:20,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:20,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:20,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:20,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:20,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:19" (1/1) ... [2021-11-23 17:12:20,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:20,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:20,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:20,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:12:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:12:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:12:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 17:12:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 17:12:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 17:12:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 17:12:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 17:12:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:20,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:12:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:12:20,092 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:12:20,198 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:20,200 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:20,764 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:20,862 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:20,867 INFO L158 Benchmark]: Toolchain (without parser) took 1540.14ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 32.4MB in the beginning and 42.9MB in the end (delta: -10.5MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-11-23 17:12:20,868 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:20,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.51ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 32.2MB in the beginning and 56.7MB in the end (delta: -24.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:12:20,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.18ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 54.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:20,871 INFO L158 Benchmark]: Boogie Preprocessor took 90.78ms. Allocated memory is still 77.6MB. Free memory was 54.1MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:20,872 INFO L158 Benchmark]: RCFGBuilder took 857.12ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 42.9MB in the end (delta: 9.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:20,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.51ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 32.2MB in the beginning and 56.7MB in the end (delta: -24.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.18ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 54.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.78ms. Allocated memory is still 77.6MB. Free memory was 54.1MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 857.12ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 42.9MB in the end (delta: 9.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:12:20,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80c81430-eda4-4619-9433-83c0de93b4e4/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