./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:08:11,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:08:11,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:08:11,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:08:11,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:08:11,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:08:11,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:08:11,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:08:11,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:08:11,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:08:11,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:08:11,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:08:11,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:08:11,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:08:11,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:08:11,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:08:11,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:08:11,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:08:11,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:08:11,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:08:11,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:08:11,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:08:11,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:08:11,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:08:11,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:08:11,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:08:11,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:08:11,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:08:11,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:08:11,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:08:11,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:08:11,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:08:11,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:08:11,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:08:11,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:08:11,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:08:11,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:08:11,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:08:11,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:08:11,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:08:11,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:08:11,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 08:08:11,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:08:11,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:08:11,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:08:11,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:08:11,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:08:11,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:08:11,819 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:08:11,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:08:11,820 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:08:11,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:08:11,821 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:08:11,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:08:11,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:08:11,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:08:11,822 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:08:11,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:08:11,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:08:11,823 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:08:11,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:08:11,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:08:11,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:08:11,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:08:11,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:08:11,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:08:11,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:08:11,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:08:11,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:08:11,827 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 08:08:11,827 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:08:11,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:08:11,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:08:11,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:08:11,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:08:11,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:08:11,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:11,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:08:11,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:08:11,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:08:11,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:08:11,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:08:11,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:08:11,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:08:11,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:08:11,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-19 08:08:12,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:08:12,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:08:12,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:08:12,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:08:12,108 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:08:12,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-19 08:08:12,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/data/d6383f6d0/8781bf9d3c164de896ab723bc4f6cf43/FLAGd1e73f8b8 [2022-11-19 08:08:12,641 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:08:12,641 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-19 08:08:12,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/data/d6383f6d0/8781bf9d3c164de896ab723bc4f6cf43/FLAGd1e73f8b8 [2022-11-19 08:08:13,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/data/d6383f6d0/8781bf9d3c164de896ab723bc4f6cf43 [2022-11-19 08:08:13,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:08:13,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:08:13,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:13,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:08:13,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:08:13,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755309f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13, skipping insertion in model container [2022-11-19 08:08:13,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:08:13,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:08:13,366 WARN L234 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_ba128534-af70-40fa-829b-6bff8c5f7d9b/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-19 08:08:13,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:13,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:08:13,477 WARN L234 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_ba128534-af70-40fa-829b-6bff8c5f7d9b/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-19 08:08:13,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:13,508 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:08:13,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13 WrapperNode [2022-11-19 08:08:13,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:13,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:13,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:08:13,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:08:13,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,599 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 661 [2022-11-19 08:08:13,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:13,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:08:13,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:08:13,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:08:13,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,661 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:08:13,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:08:13,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:08:13,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:08:13,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (1/1) ... [2022-11-19 08:08:13,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:13,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:13,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:08:13,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba128534-af70-40fa-829b-6bff8c5f7d9b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:08:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:08:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:08:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:08:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:08:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:08:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:08:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 08:08:13,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 08:08:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 08:08:13,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 08:08:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 08:08:13,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 08:08:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:08:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:08:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:08:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:08:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:08:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:08:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:08:13,786 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:08:13,948 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:08:13,950 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:08:15,092 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:08:15,544 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:08:15,544 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-19 08:08:15,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:15 BoogieIcfgContainer [2022-11-19 08:08:15,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:08:15,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:08:15,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:08:15,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:08:15,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:08:13" (1/3) ... [2022-11-19 08:08:15,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d7be95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:15, skipping insertion in model container [2022-11-19 08:08:15,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:13" (2/3) ... [2022-11-19 08:08:15,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d7be95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:15, skipping insertion in model container [2022-11-19 08:08:15,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:15" (3/3) ... [2022-11-19 08:08:15,562 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-19 08:08:15,574 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:08:15,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:08:15,584 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2022-11-19 08:08:15,584 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:08:15,830 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-19 08:08:15,888 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:08:15,905 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 616 places, 642 transitions, 1308 flow [2022-11-19 08:08:15,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 616 places, 642 transitions, 1308 flow [2022-11-19 08:08:15,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 642 transitions, 1308 flow [2022-11-19 08:08:16,271 INFO L130 PetriNetUnfolder]: 36/639 cut-off events. [2022-11-19 08:08:16,272 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-19 08:08:16,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 639 events. 36/639 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2039 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 490. Up to 2 conditions per place. [2022-11-19 08:08:16,325 INFO L119 LiptonReduction]: Number of co-enabled transitions 69132 [2022-11-19 08:10:39,659 INFO L134 LiptonReduction]: Checked pairs total: 535539 [2022-11-19 08:10:39,660 INFO L136 LiptonReduction]: Total number of compositions: 745 [2022-11-19 08:10:39,676 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 222 places, 231 transitions, 486 flow [2022-11-19 08:11:15,253 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:15,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:11:15,317 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a67961d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:11:15,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2022-11-19 08:11:16,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:11:16,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:16,808 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:11:16,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-19 08:11:16,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2949, now seen corresponding path program 1 times [2022-11-19 08:11:16,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:16,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583249921] [2022-11-19 08:11:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:16,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:16,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:16,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583249921] [2022-11-19 08:11:16,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583249921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:16,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:16,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:11:16,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381177943] [2022-11-19 08:11:16,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:16,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:11:16,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:17,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:11:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:11:18,825 INFO L87 Difference]: Start difference. First operand has 1027845 states, 1007935 states have (on average 4.143507269814026) internal successors, (4176386), 1027844 states have internal predecessors, (4176386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:31,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:31,844 INFO L93 Difference]: Finished difference Result 337685 states and 1347707 transitions. [2022-11-19 08:11:31,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:11:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 08:11:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted.