./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur --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 d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 --- 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-38b53e6 [2022-11-26 00:28:19,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:19,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:19,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:19,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:19,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:19,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:19,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:19,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:19,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:19,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:19,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:19,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:19,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:19,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:19,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:19,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:19,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:19,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:19,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:19,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:19,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:19,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:19,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:19,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:19,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:19,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:19,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:19,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:19,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:19,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:19,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:19,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:19,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:19,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:19,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:19,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:19,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:19,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:19,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:19,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:19,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:28:19,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:19,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:19,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:19,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:19,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:19,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:19,592 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:19,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:19,593 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:19,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:28:19,594 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:19,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:19,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:28:19,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:28:19,600 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:19,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:28:19,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:28:19,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:28:19,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:19,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:28:19,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:19,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:28:19,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:28:19,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:19,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:19,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:19,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:19,603 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:28:19,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:28:19,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:19,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:19,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:19,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:19,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:19,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:19,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:19,606 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:28:19,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:19,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:19,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:28:19,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:28:19,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:19,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:19,607 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_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 [2022-11-26 00:28:19,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:19,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:19,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:19,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:19,908 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:19,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-11-26 00:28:22,959 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:23,152 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:23,153 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-11-26 00:28:23,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/data/5ff058011/c14cb5059dc244f59c035562df3da03a/FLAG556785474 [2022-11-26 00:28:23,179 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/data/5ff058011/c14cb5059dc244f59c035562df3da03a [2022-11-26 00:28:23,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:23,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:23,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:23,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:23,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:23,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acbab53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23, skipping insertion in model container [2022-11-26 00:28:23,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:23,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:23,422 WARN L237 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_61f38b3a-d739-4eb4-a1da-1724a80adbd6/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-11-26 00:28:23,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:23,440 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:23,481 WARN L237 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_61f38b3a-d739-4eb4-a1da-1724a80adbd6/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-11-26 00:28:23,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:23,510 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:23,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23 WrapperNode [2022-11-26 00:28:23,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:23,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:23,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:23,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:23,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,603 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 508 [2022-11-26 00:28:23,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:23,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:23,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:23,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:23,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,696 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:23,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:23,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:23,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:23,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:23,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:23,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:23,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61f38b3a-d739-4eb4-a1da-1724a80adbd6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:28:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:28:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-26 00:28:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-26 00:28:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-26 00:28:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-26 00:28:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-26 00:28:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-26 00:28:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:28:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:28:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:23,844 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:28:24,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:24,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:25,029 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:25,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:25,041 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-26 00:28:25,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:25 BoogieIcfgContainer [2022-11-26 00:28:25,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:25,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:25,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:25,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:25,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:23" (1/3) ... [2022-11-26 00:28:25,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c00ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:25, skipping insertion in model container [2022-11-26 00:28:25,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23" (2/3) ... [2022-11-26 00:28:25,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c00ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:25, skipping insertion in model container [2022-11-26 00:28:25,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:25" (3/3) ... [2022-11-26 00:28:25,054 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2022-11-26 00:28:25,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:28:25,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:25,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-11-26 00:28:25,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:28:25,234 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-26 00:28:25,293 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:28:25,309 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 627 places, 650 transitions, 1324 flow [2022-11-26 00:28:25,312 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 627 places, 650 transitions, 1324 flow [2022-11-26 00:28:25,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 627 places, 650 transitions, 1324 flow [2022-11-26 00:28:25,719 INFO L130 PetriNetUnfolder]: 33/647 cut-off events. [2022-11-26 00:28:25,719 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-26 00:28:25,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 647 events. 33/647 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1516 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 460. Up to 3 conditions per place. [2022-11-26 00:28:25,782 INFO L119 LiptonReduction]: Number of co-enabled transitions 94392 [2022-11-26 00:28:57,496 INFO L134 LiptonReduction]: Checked pairs total: 930600 [2022-11-26 00:28:57,496 INFO L136 LiptonReduction]: Total number of compositions: 838 [2022-11-26 00:28:57,505 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 192 places, 197 transitions, 418 flow [2022-11-26 00:29:15,873 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-26 00:29:15,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:29:15,927 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;@2a3e1e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:29:15,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2022-11-26 00:29:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-26 00:29:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:29:16,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:29:16,695 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:29:16,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-11-26 00:29:16,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:29:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2495, now seen corresponding path program 1 times [2022-11-26 00:29:16,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:29:16,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010031229] [2022-11-26 00:29:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:29:16,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:29:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:29:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:29:16,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:29:16,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010031229] [2022-11-26 00:29:16,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010031229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:29:16,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:29:16,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:29:16,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363532431] [2022-11-26 00:29:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:29:16,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:29:16,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:29:16,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:29:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:29:17,833 INFO L87 Difference]: Start difference. First operand has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-26 00:29:25,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:29:25,705 INFO L93 Difference]: Finished difference Result 301262 states and 1203971 transitions. [2022-11-26 00:29:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:29:25,708 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 [2022-11-26 00:29:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:29:29,386 INFO L225 Difference]: With dead ends: 301262 [2022-11-26 00:29:29,386 INFO L226 Difference]: Without dead ends: 301257 [2022-11-26 00:29:29,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:29:29,391 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:29:29,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:29:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301257 states. [2022-11-26 00:29:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301257 to 301257. [2022-11-26 00:29:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301257 states, 300978 states have (on average 4.000159480094891) internal successors, (1203960), 301256 states have internal predecessors, (1203960), 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)