./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/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 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --- 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 [2022-11-25 23:51:18,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:51:18,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:51:18,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:51:18,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:51:18,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:51:18,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:51:18,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:51:18,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:51:18,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:51:18,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:51:18,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:51:18,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:51:18,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:51:18,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:51:18,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:51:18,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:51:18,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:51:18,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:51:18,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:51:18,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:51:18,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:51:18,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:51:18,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:51:18,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:51:18,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:51:18,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:51:18,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:51:18,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:51:18,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:51:18,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:51:18,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:51:18,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:51:18,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:51:18,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:51:18,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:51:18,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:51:18,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:51:18,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:51:18,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:51:18,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:51:18,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:51:18,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:51:18,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:51:18,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:51:18,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:51:18,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:51:18,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:51:18,588 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:51:18,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:51:18,589 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:51:18,589 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:51:18,590 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:51:18,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:51:18,591 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:51:18,591 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:51:18,591 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:51:18,592 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:51:18,592 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:51:18,592 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:51:18,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:51:18,593 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:51:18,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:51:18,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:51:18,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:51:18,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:51:18,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:51:18,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:51:18,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:51:18,596 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:51:18,596 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:51:18,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:51:18,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:51:18,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:51:18,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:51:18,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:51:18,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:18,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:51:18,599 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:51:18,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:51:18,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:51:18,599 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:51:18,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:51:18,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:51:18,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:51:18,600 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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f [2022-11-25 23:51:18,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:51:18,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:51:18,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:51:18,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:51:18,960 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:51:18,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-11-25 23:51:22,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:51:22,269 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:51:22,269 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-11-25 23:51:22,277 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/data/f9afd70e9/2ea19fce95cd416db25617a3e43a9894/FLAGb7be6655f [2022-11-25 23:51:22,292 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/data/f9afd70e9/2ea19fce95cd416db25617a3e43a9894 [2022-11-25 23:51:22,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:51:22,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:51:22,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:22,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:51:22,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:51:22,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f081f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22, skipping insertion in model container [2022-11-25 23:51:22,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:51:22,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:51:22,565 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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-11-25 23:51:22,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:22,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:51:22,643 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_954ba1a5-9361-4b07-b3c2-ac9672b0f412/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-11-25 23:51:22,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:22,670 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:51:22,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22 WrapperNode [2022-11-25 23:51:22,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:22,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:22,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:51:22,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:51:22,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,745 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 403 [2022-11-25 23:51:22,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:22,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:51:22,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:51:22,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:51:22,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:51:22,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:51:22,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:51:22,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:51:22,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (1/1) ... [2022-11-25 23:51:22,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:22,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:51:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954ba1a5-9361-4b07-b3c2-ac9672b0f412/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:51:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:51:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:51:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:51:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:51:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 23:51:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 23:51:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 23:51:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 23:51:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 23:51:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 23:51:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:51:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:51:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:51:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:51:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:51:22,977 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:51:23,165 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:51:23,169 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:51:24,119 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:51:24,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:51:24,133 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 23:51:24,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:24 BoogieIcfgContainer [2022-11-25 23:51:24,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:51:24,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:51:24,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:51:24,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:51:24,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:51:22" (1/3) ... [2022-11-25 23:51:24,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae0c8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:24, skipping insertion in model container [2022-11-25 23:51:24,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:22" (2/3) ... [2022-11-25 23:51:24,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae0c8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:24, skipping insertion in model container [2022-11-25 23:51:24,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:24" (3/3) ... [2022-11-25 23:51:24,165 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2022-11-25 23:51:24,175 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:51:24,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:51:24,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-11-25 23:51:24,185 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:51:24,392 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 23:51:24,479 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:51:24,495 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 536 transitions, 1096 flow [2022-11-25 23:51:24,498 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 536 transitions, 1096 flow [2022-11-25 23:51:24,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 536 transitions, 1096 flow [2022-11-25 23:51:24,747 INFO L130 PetriNetUnfolder]: 29/533 cut-off events. [2022-11-25 23:51:24,747 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 23:51:24,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 533 events. 29/533 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 918 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 332. Up to 2 conditions per place. [2022-11-25 23:51:24,789 INFO L119 LiptonReduction]: Number of co-enabled transitions 47072 [2022-11-25 23:51:44,603 INFO L134 LiptonReduction]: Checked pairs total: 213136 [2022-11-25 23:51:44,603 INFO L136 LiptonReduction]: Total number of compositions: 635 [2022-11-25 23:51:44,612 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 122 transitions, 268 flow [2022-11-25 23:51:47,518 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 67979 states, 67019 states have (on average 4.048329578179322) internal successors, (271315), 67978 states have internal predecessors, (271315), 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) [2022-11-25 23:51:47,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:51:47,544 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;@7926fb6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:51:47,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-25 23:51:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 67979 states, 67019 states have (on average 4.048329578179322) internal successors, (271315), 67978 states have internal predecessors, (271315), 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) [2022-11-25 23:51:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:51:47,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:47,807 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:51:47,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:51:47,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:47,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2065, now seen corresponding path program 1 times [2022-11-25 23:51:47,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:47,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679520009] [2022-11-25 23:51:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:47,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679520009] [2022-11-25 23:51:47,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679520009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:47,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:47,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:51:47,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970988103] [2022-11-25 23:51:47,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:47,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:51:47,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:47,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:51:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:51:48,158 INFO L87 Difference]: Start difference. First operand has 67979 states, 67019 states have (on average 4.048329578179322) internal successors, (271315), 67978 states have internal predecessors, (271315), 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) [2022-11-25 23:51:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:49,053 INFO L93 Difference]: Finished difference Result 30062 states and 113647 transitions. [2022-11-25 23:51:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:51:49,056 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 [2022-11-25 23:51:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:49,568 INFO L225 Difference]: With dead ends: 30062 [2022-11-25 23:51:49,568 INFO L226 Difference]: Without dead ends: 30060 [2022-11-25 23:51:49,569 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 [2022-11-25 23:51:49,574 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:49,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:51:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30060 states. [2022-11-25 23:51:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30060 to 30060. [2022-11-25 23:51:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30060 states, 30006 states have (on average 3.787375858161701) internal successors, (113644), 30059 states have internal predecessors, (113644), 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) [2022-11-25 23:51:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30060 states to 30060 states and 113644 transitions. [2022-11-25 23:51:51,343 INFO L78 Accepts]: Start accepts. Automaton has 30060 states and 113644 transitions. Word has length 1 [2022-11-25 23:51:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:51,344 INFO L495 AbstractCegarLoop]: Abstraction has 30060 states and 113644 transitions. [2022-11-25 23:51:51,344 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-11-25 23:51:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30060 states and 113644 transitions. [2022-11-25 23:51:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:51:51,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:51,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:51,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:51:51,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:51:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2116362736, now seen corresponding path program 1 times [2022-11-25 23:51:51,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:51,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745466643] [2022-11-25 23:51:51,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:51,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:52,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:52,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745466643] [2022-11-25 23:51:52,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745466643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:52,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:52,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:51:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915733597] [2022-11-25 23:51:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:52,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:51:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:52,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:51:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:51:52,149 INFO L87 Difference]: Start difference. First operand 30060 states and 113644 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-25 23:51:53,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:53,735 INFO L93 Difference]: Finished difference Result 39452 states and 150061 transitions. [2022-11-25 23:51:53,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:51:53,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-25 23:51:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:54,095 INFO L225 Difference]: With dead ends: 39452 [2022-11-25 23:51:54,096 INFO L226 Difference]: Without dead ends: 39452 [2022-11-25 23:51:54,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:51:54,097 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 92 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:54,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:51:54,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39452 states. [2022-11-25 23:51:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39452 to 39452. [2022-11-25 23:51:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39452 states, 39398 states have (on average 3.808848164881466) internal successors, (150061), 39451 states have internal predecessors, (150061), 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) [2022-11-25 23:51:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39452 states to 39452 states and 150061 transitions. [2022-11-25 23:51:56,094 INFO L78 Accepts]: Start accepts. Automaton has 39452 states and 150061 transitions. Word has length 14 [2022-11-25 23:51:56,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:56,095 INFO L495 AbstractCegarLoop]: Abstraction has 39452 states and 150061 transitions. [2022-11-25 23:51:56,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-25 23:51:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 39452 states and 150061 transitions. [2022-11-25 23:51:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:51:56,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:56,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:56,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:51:56,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:51:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash 726735071, now seen corresponding path program 1 times [2022-11-25 23:51:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:56,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437409168] [2022-11-25 23:51:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:56,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:56,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:56,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437409168] [2022-11-25 23:51:56,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437409168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:56,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:56,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:51:56,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108977418] [2022-11-25 23:51:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:56,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:51:56,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:51:56,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:51:56,540 INFO L87 Difference]: Start difference. First operand 39452 states and 150061 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-25 23:51:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:58,028 INFO L93 Difference]: Finished difference Result 64208 states and 241824 transitions. [2022-11-25 23:51:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:51:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-11-25 23:51:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:58,373 INFO L225 Difference]: With dead ends: 64208 [2022-11-25 23:51:58,373 INFO L226 Difference]: Without dead ends: 64208 [2022-11-25 23:51:58,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:51:58,374 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:58,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 91 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:51:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64208 states. [2022-11-25 23:52:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64208 to 57162. [2022-11-25 23:52:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57162 states, 57108 states have (on average 3.868127057505078) internal successors, (220901), 57161 states have internal predecessors, (220901), 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) [2022-11-25 23:52:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57162 states to 57162 states and 220901 transitions. [2022-11-25 23:52:01,426 INFO L78 Accepts]: Start accepts. Automaton has 57162 states and 220901 transitions. Word has length 15 [2022-11-25 23:52:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:01,428 INFO L495 AbstractCegarLoop]: Abstraction has 57162 states and 220901 transitions. [2022-11-25 23:52:01,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-25 23:52:01,428 INFO L276 IsEmpty]: Start isEmpty. Operand 57162 states and 220901 transitions. [2022-11-25 23:52:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:52:01,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:01,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:01,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:52:01,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1604359257, now seen corresponding path program 1 times [2022-11-25 23:52:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:01,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650267032] [2022-11-25 23:52:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:01,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:01,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650267032] [2022-11-25 23:52:01,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650267032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:01,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:01,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:01,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815720853] [2022-11-25 23:52:01,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:01,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:01,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:01,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:01,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:01,579 INFO L87 Difference]: Start difference. First operand 57162 states and 220901 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-25 23:52:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:02,203 INFO L93 Difference]: Finished difference Result 60871 states and 233744 transitions. [2022-11-25 23:52:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-25 23:52:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:03,115 INFO L225 Difference]: With dead ends: 60871 [2022-11-25 23:52:03,116 INFO L226 Difference]: Without dead ends: 60868 [2022-11-25 23:52:03,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:03,117 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 143 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:03,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 201 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60868 states. [2022-11-25 23:52:04,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60868 to 60003. [2022-11-25 23:52:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60003 states, 59949 states have (on average 3.85921366494854) internal successors, (231356), 60002 states have internal predecessors, (231356), 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) [2022-11-25 23:52:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60003 states to 60003 states and 231356 transitions. [2022-11-25 23:52:04,961 INFO L78 Accepts]: Start accepts. Automaton has 60003 states and 231356 transitions. Word has length 16 [2022-11-25 23:52:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:04,961 INFO L495 AbstractCegarLoop]: Abstraction has 60003 states and 231356 transitions. [2022-11-25 23:52:04,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-25 23:52:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 60003 states and 231356 transitions. [2022-11-25 23:52:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:52:04,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:04,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:04,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:52:04,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1682227412, now seen corresponding path program 1 times [2022-11-25 23:52:04,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:04,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241203800] [2022-11-25 23:52:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:04,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:05,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241203800] [2022-11-25 23:52:05,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241203800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:05,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:05,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938397709] [2022-11-25 23:52:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:05,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:05,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:05,088 INFO L87 Difference]: Start difference. First operand 60003 states and 231356 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-25 23:52:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:06,445 INFO L93 Difference]: Finished difference Result 59923 states and 229695 transitions. [2022-11-25 23:52:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-25 23:52:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:06,733 INFO L225 Difference]: With dead ends: 59923 [2022-11-25 23:52:06,733 INFO L226 Difference]: Without dead ends: 59923 [2022-11-25 23:52:06,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:06,734 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 196 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:06,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 198 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:52:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59923 states. [2022-11-25 23:52:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59923 to 58459. [2022-11-25 23:52:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58459 states, 58405 states have (on average 3.855080900607825) internal successors, (225156), 58458 states have internal predecessors, (225156), 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) [2022-11-25 23:52:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58459 states to 58459 states and 225156 transitions. [2022-11-25 23:52:09,452 INFO L78 Accepts]: Start accepts. Automaton has 58459 states and 225156 transitions. Word has length 16 [2022-11-25 23:52:09,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:09,452 INFO L495 AbstractCegarLoop]: Abstraction has 58459 states and 225156 transitions. [2022-11-25 23:52:09,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-25 23:52:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 58459 states and 225156 transitions. [2022-11-25 23:52:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:52:09,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:09,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:09,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:52:09,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash 936466612, now seen corresponding path program 1 times [2022-11-25 23:52:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:09,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060794232] [2022-11-25 23:52:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:09,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:52:09,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:09,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060794232] [2022-11-25 23:52:09,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060794232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:09,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:09,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:09,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544103479] [2022-11-25 23:52:09,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:09,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:09,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:09,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:09,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:09,894 INFO L87 Difference]: Start difference. First operand 58459 states and 225156 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-25 23:52:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:10,785 INFO L93 Difference]: Finished difference Result 56383 states and 217121 transitions. [2022-11-25 23:52:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:10,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2022-11-25 23:52:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:11,036 INFO L225 Difference]: With dead ends: 56383 [2022-11-25 23:52:11,036 INFO L226 Difference]: Without dead ends: 56383 [2022-11-25 23:52:11,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:11,037 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 77 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:11,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 80 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:52:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56383 states. [2022-11-25 23:52:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56383 to 56383. [2022-11-25 23:52:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56383 states, 56340 states have (on average 3.8537628682996097) internal successors, (217121), 56382 states have internal predecessors, (217121), 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) [2022-11-25 23:52:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56383 states to 56383 states and 217121 transitions. [2022-11-25 23:52:13,470 INFO L78 Accepts]: Start accepts. Automaton has 56383 states and 217121 transitions. Word has length 19 [2022-11-25 23:52:13,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:13,470 INFO L495 AbstractCegarLoop]: Abstraction has 56383 states and 217121 transitions. [2022-11-25 23:52:13,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-25 23:52:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 56383 states and 217121 transitions. [2022-11-25 23:52:13,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:52:13,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:13,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:13,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:52:13,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:13,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1944847239, now seen corresponding path program 1 times [2022-11-25 23:52:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:13,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056108141] [2022-11-25 23:52:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:13,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:52:13,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:13,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056108141] [2022-11-25 23:52:13,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056108141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:13,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:13,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:52:13,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793271967] [2022-11-25 23:52:13,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:13,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:13,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:13,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:13,969 INFO L87 Difference]: Start difference. First operand 56383 states and 217121 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-25 23:52:15,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:15,317 INFO L93 Difference]: Finished difference Result 75837 states and 292583 transitions. [2022-11-25 23:52:15,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:52:15,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2022-11-25 23:52:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:16,583 INFO L225 Difference]: With dead ends: 75837 [2022-11-25 23:52:16,583 INFO L226 Difference]: Without dead ends: 75837 [2022-11-25 23:52:16,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:16,585 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 100 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:16,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 77 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:52:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75837 states. [2022-11-25 23:52:18,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75837 to 75837. [2022-11-25 23:52:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75837 states, 75794 states have (on average 3.8602395968018577) internal successors, (292583), 75836 states have internal predecessors, (292583), 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) [2022-11-25 23:52:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75837 states to 75837 states and 292583 transitions. [2022-11-25 23:52:18,687 INFO L78 Accepts]: Start accepts. Automaton has 75837 states and 292583 transitions. Word has length 19 [2022-11-25 23:52:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:18,687 INFO L495 AbstractCegarLoop]: Abstraction has 75837 states and 292583 transitions. [2022-11-25 23:52:18,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-25 23:52:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 75837 states and 292583 transitions. [2022-11-25 23:52:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:52:18,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:18,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:18,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:52:18,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2067864334, now seen corresponding path program 1 times [2022-11-25 23:52:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:18,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615467748] [2022-11-25 23:52:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:52:18,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:18,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615467748] [2022-11-25 23:52:18,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615467748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:18,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:18,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085082544] [2022-11-25 23:52:18,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:18,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:18,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:18,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:19,000 INFO L87 Difference]: Start difference. First operand 75837 states and 292583 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-25 23:52:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:20,952 INFO L93 Difference]: Finished difference Result 73009 states and 281632 transitions. [2022-11-25 23:52:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:20,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-11-25 23:52:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:21,301 INFO L225 Difference]: With dead ends: 73009 [2022-11-25 23:52:21,301 INFO L226 Difference]: Without dead ends: 73009 [2022-11-25 23:52:21,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:21,302 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 77 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:21,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 74 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:52:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73009 states. [2022-11-25 23:52:23,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73009 to 73009. [2022-11-25 23:52:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73009 states, 72977 states have (on average 3.8591885114488127) internal successors, (281632), 73008 states have internal predecessors, (281632), 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) [2022-11-25 23:52:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73009 states to 73009 states and 281632 transitions. [2022-11-25 23:52:24,861 INFO L78 Accepts]: Start accepts. Automaton has 73009 states and 281632 transitions. Word has length 24 [2022-11-25 23:52:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:24,861 INFO L495 AbstractCegarLoop]: Abstraction has 73009 states and 281632 transitions. [2022-11-25 23:52:24,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-25 23:52:24,861 INFO L276 IsEmpty]: Start isEmpty. Operand 73009 states and 281632 transitions. [2022-11-25 23:52:24,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:52:24,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:24,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:24,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:52:24,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:24,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1566335689, now seen corresponding path program 1 times [2022-11-25 23:52:24,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:24,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092677400] [2022-11-25 23:52:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:25,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:25,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092677400] [2022-11-25 23:52:25,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092677400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:25,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:25,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:52:25,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175862243] [2022-11-25 23:52:25,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:25,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:25,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:25,211 INFO L87 Difference]: Start difference. First operand 73009 states and 281632 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-11-25 23:52:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:26,293 INFO L93 Difference]: Finished difference Result 75058 states and 287211 transitions. [2022-11-25 23:52:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:52:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 25 [2022-11-25 23:52:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:27,390 INFO L225 Difference]: With dead ends: 75058 [2022-11-25 23:52:27,390 INFO L226 Difference]: Without dead ends: 75058 [2022-11-25 23:52:27,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:27,391 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 79 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:27,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 75 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:52:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75058 states. [2022-11-25 23:52:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75058 to 74484. [2022-11-25 23:52:29,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74484 states, 74452 states have (on average 3.8422473539998925) internal successors, (286063), 74483 states have internal predecessors, (286063), 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) [2022-11-25 23:52:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74484 states to 74484 states and 286063 transitions. [2022-11-25 23:52:29,414 INFO L78 Accepts]: Start accepts. Automaton has 74484 states and 286063 transitions. Word has length 25 [2022-11-25 23:52:29,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:29,414 INFO L495 AbstractCegarLoop]: Abstraction has 74484 states and 286063 transitions. [2022-11-25 23:52:29,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-11-25 23:52:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 74484 states and 286063 transitions. [2022-11-25 23:52:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 23:52:29,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:29,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:29,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:52:29,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 23:52:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash 416365025, now seen corresponding path program 1 times [2022-11-25 23:52:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:29,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560038471] [2022-11-25 23:52:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:29,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:52:29,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:29,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560038471] [2022-11-25 23:52:29,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560038471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:29,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:29,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:52:29,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363315480] [2022-11-25 23:52:29,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:29,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:29,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:29,830 INFO L87 Difference]: Start difference. First operand 74484 states and 286063 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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)