./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI --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 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f --- 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-5e519f3 [2022-11-03 03:41:13,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:41:13,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:41:13,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:41:13,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:41:13,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:41:13,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:41:13,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:41:13,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:41:13,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:41:13,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:41:13,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:41:13,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:41:13,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:41:13,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:41:13,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:41:13,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:41:13,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:41:13,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:41:13,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:41:13,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:41:13,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:41:13,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:41:13,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:41:13,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:41:13,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:41:13,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:41:13,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:41:13,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:41:13,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:41:13,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:41:13,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:41:13,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:41:13,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:41:13,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:41:13,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:41:13,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:41:13,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:41:13,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:41:13,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:41:13,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:41:13,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:41:13,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:41:13,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:41:13,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:41:13,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:41:13,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:41:13,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:41:13,524 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:41:13,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:41:13,525 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:41:13,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:41:13,526 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:41:13,527 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:41:13,527 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:41:13,527 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:41:13,527 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:41:13,528 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:41:13,528 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:41:13,528 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:41:13,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:41:13,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:41:13,529 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:41:13,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:41:13,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:41:13,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:41:13,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:41:13,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:41:13,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:41:13,533 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:41:13,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:41:13,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:41:13,533 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:41:13,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:41:13,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:41:13,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:41:13,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:41:13,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:41:13,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:41:13,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:41:13,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:41:13,535 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:41:13,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:41:13,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:41:13,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:41:13,536 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_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f [2022-11-03 03:41:13,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:41:13,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:41:13,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:41:13,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:41:13,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:41:13,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2022-11-03 03:41:13,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/data/0bfbfcdbe/621f09bf012142f3b5006e4582e91c04/FLAG4fef95376 [2022-11-03 03:41:14,353 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:41:14,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2022-11-03 03:41:14,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/data/0bfbfcdbe/621f09bf012142f3b5006e4582e91c04/FLAG4fef95376 [2022-11-03 03:41:14,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/data/0bfbfcdbe/621f09bf012142f3b5006e4582e91c04 [2022-11-03 03:41:14,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:41:14,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:41:14,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:41:14,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:41:14,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:41:14,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:41:14" (1/1) ... [2022-11-03 03:41:14,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e028a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:14, skipping insertion in model container [2022-11-03 03:41:14,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:41:14" (1/1) ... [2022-11-03 03:41:14,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:41:14,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:41:15,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c[2533,2546] [2022-11-03 03:41:15,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:41:15,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:41:15,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c[2533,2546] [2022-11-03 03:41:15,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:41:15,108 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:41:15,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15 WrapperNode [2022-11-03 03:41:15,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:41:15,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:41:15,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:41:15,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:41:15,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,191 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 376 [2022-11-03 03:41:15,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:41:15,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:41:15,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:41:15,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:41:15,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:41:15,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:41:15,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:41:15,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:41:15,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (1/1) ... [2022-11-03 03:41:15,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:41:15,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:41:15,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:41:15,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:41:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:41:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:41:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:41:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:41:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 03:41:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 03:41:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 03:41:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 03:41:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 03:41:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 03:41:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:41:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 03:41:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 03:41:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:41:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:41:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:41:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:41:15,331 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:41:15,502 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:41:15,504 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:41:16,229 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:41:16,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:41:16,575 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 03:41:16,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:16 BoogieIcfgContainer [2022-11-03 03:41:16,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:41:16,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:41:16,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:41:16,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:41:16,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:41:14" (1/3) ... [2022-11-03 03:41:16,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c902310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:16, skipping insertion in model container [2022-11-03 03:41:16,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:15" (2/3) ... [2022-11-03 03:41:16,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c902310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:16, skipping insertion in model container [2022-11-03 03:41:16,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:16" (3/3) ... [2022-11-03 03:41:16,595 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2022-11-03 03:41:16,607 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:41:16,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:41:16,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2022-11-03 03:41:16,617 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:41:16,778 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 03:41:16,857 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:41:16,872 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 391 transitions, 806 flow [2022-11-03 03:41:16,875 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 391 transitions, 806 flow [2022-11-03 03:41:16,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 381 places, 391 transitions, 806 flow [2022-11-03 03:41:17,092 INFO L130 PetriNetUnfolder]: 20/388 cut-off events. [2022-11-03 03:41:17,093 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 03:41:17,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 388 events. 20/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 820 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 290. Up to 2 conditions per place. [2022-11-03 03:41:17,128 INFO L118 LiptonReduction]: Number of co-enabled transitions 29070 [2022-11-03 03:41:48,898 INFO L133 LiptonReduction]: Checked pairs total: 154203 [2022-11-03 03:41:48,898 INFO L135 LiptonReduction]: Total number of compositions: 461 [2022-11-03 03:41:48,912 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 127 transitions, 278 flow [2022-11-03 03:41:52,928 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104081 states, 101659 states have (on average 4.1017420985844835) internal successors, (416979), 104080 states have internal predecessors, (416979), 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) [2022-11-03 03:41:52,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:41:52,969 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;@2998c47b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:41:52,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-11-03 03:41:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 104081 states, 101659 states have (on average 4.1017420985844835) internal successors, (416979), 104080 states have internal predecessors, (416979), 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) [2022-11-03 03:41:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 03:41:53,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:53,416 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 03:41:53,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:41:53,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:53,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1753, now seen corresponding path program 1 times [2022-11-03 03:41:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:53,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590240968] [2022-11-03 03:41:53,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:41:53,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590240968] [2022-11-03 03:41:53,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590240968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:53,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:53,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 03:41:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193481120] [2022-11-03 03:41:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:53,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:41:53,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:41:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:41:53,982 INFO L87 Difference]: Start difference. First operand has 104081 states, 101659 states have (on average 4.1017420985844835) internal successors, (416979), 104080 states have internal predecessors, (416979), 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) [2022-11-03 03:41:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:55,323 INFO L93 Difference]: Finished difference Result 19577 states and 75525 transitions. [2022-11-03 03:41:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:41:55,326 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 [2022-11-03 03:41:55,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:55,758 INFO L225 Difference]: With dead ends: 19577 [2022-11-03 03:41:55,769 INFO L226 Difference]: Without dead ends: 19571 [2022-11-03 03:41:55,779 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 [2022-11-03 03:41:55,785 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:55,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:41:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19571 states. [2022-11-03 03:41:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19571 to 19571. [2022-11-03 03:41:56,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19571 states, 19544 states have (on average 3.863794514940647) internal successors, (75514), 19570 states have internal predecessors, (75514), 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) [2022-11-03 03:41:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19571 states to 19571 states and 75514 transitions. [2022-11-03 03:41:57,044 INFO L78 Accepts]: Start accepts. Automaton has 19571 states and 75514 transitions. Word has length 1 [2022-11-03 03:41:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:57,044 INFO L495 AbstractCegarLoop]: Abstraction has 19571 states and 75514 transitions. [2022-11-03 03:41:57,045 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) [2022-11-03 03:41:57,046 INFO L276 IsEmpty]: Start isEmpty. Operand 19571 states and 75514 transitions. [2022-11-03 03:41:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:41:57,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:57,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:57,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:41:57,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:41:57,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2088477953, now seen corresponding path program 1 times [2022-11-03 03:41:57,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:57,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261014387] [2022-11-03 03:41:57,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:41:57,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:57,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261014387] [2022-11-03 03:41:57,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261014387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:57,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:57,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:41:57,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193395700] [2022-11-03 03:41:57,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:57,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:57,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:57,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:57,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:57,436 INFO L87 Difference]: Start difference. First operand 19571 states and 75514 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-03 03:41:57,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:57,914 INFO L93 Difference]: Finished difference Result 19572 states and 75515 transitions. [2022-11-03 03:41:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:57,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-03 03:41:57,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:58,049 INFO L225 Difference]: With dead ends: 19572 [2022-11-03 03:41:58,049 INFO L226 Difference]: Without dead ends: 19572 [2022-11-03 03:41:58,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:58,052 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:41:58,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19572 states. [2022-11-03 03:41:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19572 to 19572. [2022-11-03 03:41:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19572 states, 19545 states have (on average 3.863647991813763) internal successors, (75515), 19571 states have internal predecessors, (75515), 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) [2022-11-03 03:41:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19572 states to 19572 states and 75515 transitions. [2022-11-03 03:41:59,123 INFO L78 Accepts]: Start accepts. Automaton has 19572 states and 75515 transitions. Word has length 12 [2022-11-03 03:41:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:59,124 INFO L495 AbstractCegarLoop]: Abstraction has 19572 states and 75515 transitions. [2022-11-03 03:41:59,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-03 03:41:59,124 INFO L276 IsEmpty]: Start isEmpty. Operand 19572 states and 75515 transitions. [2022-11-03 03:41:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:41:59,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:59,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:59,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:41:59,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:41:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash -336516313, now seen corresponding path program 1 times [2022-11-03 03:41:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:59,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769069020] [2022-11-03 03:41:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:41:59,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:59,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769069020] [2022-11-03 03:41:59,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769069020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:59,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:59,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:41:59,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709297288] [2022-11-03 03:41:59,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:59,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:41:59,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:59,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:41:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:41:59,616 INFO L87 Difference]: Start difference. First operand 19572 states and 75515 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-03 03:42:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:00,613 INFO L93 Difference]: Finished difference Result 17042 states and 65170 transitions. [2022-11-03 03:42:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:42:00,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2022-11-03 03:42:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:00,778 INFO L225 Difference]: With dead ends: 17042 [2022-11-03 03:42:00,778 INFO L226 Difference]: Without dead ends: 17042 [2022-11-03 03:42:00,780 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 [2022-11-03 03:42:00,783 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 158 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:00,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 170 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:42:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17042 states. [2022-11-03 03:42:01,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17042 to 17042. [2022-11-03 03:42:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17042 states, 17027 states have (on average 3.82745051976273) internal successors, (65170), 17041 states have internal predecessors, (65170), 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) [2022-11-03 03:42:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17042 states to 17042 states and 65170 transitions. [2022-11-03 03:42:01,590 INFO L78 Accepts]: Start accepts. Automaton has 17042 states and 65170 transitions. Word has length 13 [2022-11-03 03:42:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:01,591 INFO L495 AbstractCegarLoop]: Abstraction has 17042 states and 65170 transitions. [2022-11-03 03:42:01,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-11-03 03:42:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 17042 states and 65170 transitions. [2022-11-03 03:42:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:42:01,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:01,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:01,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:42:01,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:01,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:01,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1254471430, now seen corresponding path program 1 times [2022-11-03 03:42:01,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:01,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467121680] [2022-11-03 03:42:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:42:01,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:01,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467121680] [2022-11-03 03:42:01,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467121680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:01,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:01,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:01,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673273092] [2022-11-03 03:42:01,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:01,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:42:01,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:01,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:42:01,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:42:01,963 INFO L87 Difference]: Start difference. First operand 17042 states and 65170 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) [2022-11-03 03:42:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:02,806 INFO L93 Difference]: Finished difference Result 15630 states and 59774 transitions. [2022-11-03 03:42:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:42:02,806 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 [2022-11-03 03:42:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:02,882 INFO L225 Difference]: With dead ends: 15630 [2022-11-03 03:42:02,882 INFO L226 Difference]: Without dead ends: 15630 [2022-11-03 03:42:02,883 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 [2022-11-03 03:42:02,883 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 103 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:02,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 116 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:42:02,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15630 states. [2022-11-03 03:42:03,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15630 to 15630. [2022-11-03 03:42:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15630 states, 15621 states have (on average 3.8265155879905257) internal successors, (59774), 15629 states have internal predecessors, (59774), 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) [2022-11-03 03:42:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15630 states to 15630 states and 59774 transitions. [2022-11-03 03:42:03,480 INFO L78 Accepts]: Start accepts. Automaton has 15630 states and 59774 transitions. Word has length 14 [2022-11-03 03:42:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:03,481 INFO L495 AbstractCegarLoop]: Abstraction has 15630 states and 59774 transitions. [2022-11-03 03:42:03,481 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) [2022-11-03 03:42:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 15630 states and 59774 transitions. [2022-11-03 03:42:03,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:42:03,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:03,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:03,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:42:03,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:03,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:03,485 INFO L85 PathProgramCache]: Analyzing trace with hash -233888986, now seen corresponding path program 1 times [2022-11-03 03:42:03,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:03,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447694094] [2022-11-03 03:42:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:42:03,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:03,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447694094] [2022-11-03 03:42:03,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447694094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:03,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:03,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:42:03,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567973974] [2022-11-03 03:42:03,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:03,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:03,531 INFO L87 Difference]: Start difference. First operand 15630 states and 59774 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-03 03:42:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:03,929 INFO L93 Difference]: Finished difference Result 14924 states and 57076 transitions. [2022-11-03 03:42:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 [2022-11-03 03:42:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:03,997 INFO L225 Difference]: With dead ends: 14924 [2022-11-03 03:42:03,997 INFO L226 Difference]: Without dead ends: 14924 [2022-11-03 03:42:03,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:03,998 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:03,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 112 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:42:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14924 states. [2022-11-03 03:42:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14924 to 14924. [2022-11-03 03:42:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14924 states, 14918 states have (on average 3.8259820351253517) internal successors, (57076), 14923 states have internal predecessors, (57076), 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) [2022-11-03 03:42:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14924 states to 14924 states and 57076 transitions. [2022-11-03 03:42:04,556 INFO L78 Accepts]: Start accepts. Automaton has 14924 states and 57076 transitions. Word has length 15 [2022-11-03 03:42:04,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:04,557 INFO L495 AbstractCegarLoop]: Abstraction has 14924 states and 57076 transitions. [2022-11-03 03:42:04,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-03 03:42:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 14924 states and 57076 transitions. [2022-11-03 03:42:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:42:04,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:04,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:04,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:42:04,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1819504172, now seen corresponding path program 1 times [2022-11-03 03:42:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137239960] [2022-11-03 03:42:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:04,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:04,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137239960] [2022-11-03 03:42:04,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137239960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:42:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942493277] [2022-11-03 03:42:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:04,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:04,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:42:04,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:42:04,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:42:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:05,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:42:05,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:05,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:05,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942493277] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:42:05,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [910486774] [2022-11-03 03:42:05,380 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 03:42:05,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:42:05,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-03 03:42:05,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016462076] [2022-11-03 03:42:05,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:42:05,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:42:05,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:05,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:42:05,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:42:05,397 INFO L87 Difference]: Start difference. First operand 14924 states and 57076 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-03 03:42:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:06,331 INFO L93 Difference]: Finished difference Result 17696 states and 66774 transitions. [2022-11-03 03:42:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:06,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 [2022-11-03 03:42:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:06,407 INFO L225 Difference]: With dead ends: 17696 [2022-11-03 03:42:06,407 INFO L226 Difference]: Without dead ends: 17696 [2022-11-03 03:42:06,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:42:06,410 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 294 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:06,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 518 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:42:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17696 states. [2022-11-03 03:42:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17696 to 16991. [2022-11-03 03:42:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16991 states, 16985 states have (on average 3.8170150132469827) internal successors, (64832), 16990 states have internal predecessors, (64832), 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) [2022-11-03 03:42:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16991 states to 16991 states and 64832 transitions. [2022-11-03 03:42:06,867 INFO L78 Accepts]: Start accepts. Automaton has 16991 states and 64832 transitions. Word has length 16 [2022-11-03 03:42:06,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:06,868 INFO L495 AbstractCegarLoop]: Abstraction has 16991 states and 64832 transitions. [2022-11-03 03:42:06,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-11-03 03:42:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 16991 states and 64832 transitions. [2022-11-03 03:42:06,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:42:06,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:06,873 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:06,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:42:07,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 03:42:07,075 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:07,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2077061458, now seen corresponding path program 2 times [2022-11-03 03:42:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:07,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059031336] [2022-11-03 03:42:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:07,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:42:07,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:07,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059031336] [2022-11-03 03:42:07,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059031336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:07,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:07,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:07,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467773887] [2022-11-03 03:42:07,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:07,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:42:07,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:42:07,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:42:07,506 INFO L87 Difference]: Start difference. First operand 16991 states and 64832 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2022-11-03 03:42:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:08,290 INFO L93 Difference]: Finished difference Result 15641 states and 59718 transitions. [2022-11-03 03:42:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:42:08,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 17 [2022-11-03 03:42:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:08,356 INFO L225 Difference]: With dead ends: 15641 [2022-11-03 03:42:08,356 INFO L226 Difference]: Without dead ends: 15641 [2022-11-03 03:42:08,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:42:08,357 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 104 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:08,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 97 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:42:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15641 states. [2022-11-03 03:42:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15641 to 15641. [2022-11-03 03:42:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15641 states, 15639 states have (on average 3.8185305965854592) internal successors, (59718), 15640 states have internal predecessors, (59718), 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) [2022-11-03 03:42:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15641 states to 15641 states and 59718 transitions. [2022-11-03 03:42:08,785 INFO L78 Accepts]: Start accepts. Automaton has 15641 states and 59718 transitions. Word has length 17 [2022-11-03 03:42:08,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 15641 states and 59718 transitions. [2022-11-03 03:42:08,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2022-11-03 03:42:08,785 INFO L276 IsEmpty]: Start isEmpty. Operand 15641 states and 59718 transitions. [2022-11-03 03:42:08,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 03:42:08,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:08,794 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] [2022-11-03 03:42:08,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:42:08,794 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:08,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:08,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1213040774, now seen corresponding path program 1 times [2022-11-03 03:42:08,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:08,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70387210] [2022-11-03 03:42:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:08,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:09,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:09,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70387210] [2022-11-03 03:42:09,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70387210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:42:09,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206092443] [2022-11-03 03:42:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:09,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:09,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:42:09,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:42:09,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:42:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:09,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:42:09,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:09,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:09,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206092443] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:42:09,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:42:09,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-11-03 03:42:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780748452] [2022-11-03 03:42:09,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:09,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:42:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:42:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:42:09,689 INFO L87 Difference]: Start difference. First operand 15641 states and 59718 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-03 03:42:09,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:09,919 INFO L93 Difference]: Finished difference Result 17121 states and 65364 transitions. [2022-11-03 03:42:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:42:09,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2022-11-03 03:42:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:09,969 INFO L225 Difference]: With dead ends: 17121 [2022-11-03 03:42:09,969 INFO L226 Difference]: Without dead ends: 17121 [2022-11-03 03:42:09,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:42:09,969 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 124 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:09,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 83 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:42:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17121 states. [2022-11-03 03:42:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17121 to 17121. [2022-11-03 03:42:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17121 states, 17119 states have (on average 3.818213680705649) internal successors, (65364), 17120 states have internal predecessors, (65364), 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) [2022-11-03 03:42:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17121 states to 17121 states and 65364 transitions. [2022-11-03 03:42:10,674 INFO L78 Accepts]: Start accepts. Automaton has 17121 states and 65364 transitions. Word has length 22 [2022-11-03 03:42:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 17121 states and 65364 transitions. [2022-11-03 03:42:10,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-03 03:42:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 17121 states and 65364 transitions. [2022-11-03 03:42:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:42:10,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:10,719 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-11-03 03:42:10,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 03:42:10,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 03:42:10,946 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:10,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:10,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1612172058, now seen corresponding path program 1 times [2022-11-03 03:42:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:10,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811294627] [2022-11-03 03:42:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:10,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:42:11,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:11,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811294627] [2022-11-03 03:42:11,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811294627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:11,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:11,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:11,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131054819] [2022-11-03 03:42:11,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:11,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:42:11,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:11,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:42:11,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:42:11,407 INFO L87 Difference]: Start difference. First operand 17121 states and 65364 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-11-03 03:42:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:11,963 INFO L93 Difference]: Finished difference Result 17006 states and 65014 transitions. [2022-11-03 03:42:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:42:11,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 32 [2022-11-03 03:42:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:12,047 INFO L225 Difference]: With dead ends: 17006 [2022-11-03 03:42:12,047 INFO L226 Difference]: Without dead ends: 17006 [2022-11-03 03:42:12,047 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 [2022-11-03 03:42:12,048 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 77 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:12,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 118 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 03:42:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17006 states. [2022-11-03 03:42:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17006 to 17006. [2022-11-03 03:42:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17006 states, 17005 states have (on average 3.823228462216995) internal successors, (65014), 17005 states have internal predecessors, (65014), 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) [2022-11-03 03:42:12,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17006 states to 17006 states and 65014 transitions. [2022-11-03 03:42:12,852 INFO L78 Accepts]: Start accepts. Automaton has 17006 states and 65014 transitions. Word has length 32 [2022-11-03 03:42:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:12,856 INFO L495 AbstractCegarLoop]: Abstraction has 17006 states and 65014 transitions. [2022-11-03 03:42:12,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-11-03 03:42:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 17006 states and 65014 transitions. [2022-11-03 03:42:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 03:42:12,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:12,908 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:12,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:42:12,909 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-03 03:42:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1918391961, now seen corresponding path program 1 times [2022-11-03 03:42:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:12,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10330813] [2022-11-03 03:42:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:42:13,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:13,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10330813] [2022-11-03 03:42:13,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10330813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:13,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:13,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994061313] [2022-11-03 03:42:13,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:13,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:42:13,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:42:13,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:42:13,296 INFO L87 Difference]: Start difference. First operand 17006 states and 65014 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-11-03 03:42:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:13,688 INFO L93 Difference]: Finished difference Result 17001 states and 65004 transitions. [2022-11-03 03:42:13,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:42:13,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 41 [2022-11-03 03:42:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:13,689 INFO L225 Difference]: With dead ends: 17001 [2022-11-03 03:42:13,689 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:42:13,689 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 [2022-11-03 03:42:13,690 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 16 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:13,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 96 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:42:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:42:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:42:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-03 03:42:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:42:13,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-11-03 03:42:13,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:13,691 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:42:13,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2022-11-03 03:42:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:42:13,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:42:13,694 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (78 of 79 remaining) [2022-11-03 03:42:13,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-11-03 03:42:13,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-11-03 03:42:13,695 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-11-03 03:42:13,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-11-03 03:42:13,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-11-03 03:42:13,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-11-03 03:42:13,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-11-03 03:42:13,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-11-03 03:42:13,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-11-03 03:42:13,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-11-03 03:42:13,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-11-03 03:42:13,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-11-03 03:42:13,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-11-03 03:42:13,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-11-03 03:42:13,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-11-03 03:42:13,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-11-03 03:42:13,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-11-03 03:42:13,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-11-03 03:42:13,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-11-03 03:42:13,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-11-03 03:42:13,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-11-03 03:42:13,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-11-03 03:42:13,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-11-03 03:42:13,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-11-03 03:42:13,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-11-03 03:42:13,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-11-03 03:42:13,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 79 remaining) [2022-11-03 03:42:13,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 79 remaining) [2022-11-03 03:42:13,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 79 remaining) [2022-11-03 03:42:13,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-11-03 03:42:13,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-11-03 03:42:13,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-11-03 03:42:13,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-11-03 03:42:13,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-11-03 03:42:13,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-11-03 03:42:13,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-11-03 03:42:13,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-11-03 03:42:13,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-11-03 03:42:13,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-11-03 03:42:13,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-11-03 03:42:13,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-11-03 03:42:13,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-11-03 03:42:13,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-11-03 03:42:13,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 03:42:13,712 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:13,717 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:42:13,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:42:13,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:42:13 BasicIcfg [2022-11-03 03:42:13,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:42:13,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:42:13,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:42:13,721 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:42:13,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:16" (3/4) ... [2022-11-03 03:42:13,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:42:13,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-03 03:42:13,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-03 03:42:13,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-03 03:42:13,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-03 03:42:13,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-03 03:42:13,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:42:13,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:42:13,777 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:42:13,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:42:13,777 INFO L158 Benchmark]: Toolchain (without parser) took 59030.68ms. Allocated memory was 98.6MB in the beginning and 10.1GB in the end (delta: 10.0GB). Free memory was 65.1MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-03 03:42:13,778 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 59.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:42:13,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.60ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 71.7MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:42:13,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.70ms. Allocated memory is still 98.6MB. Free memory was 71.7MB in the beginning and 68.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:42:13,779 INFO L158 Benchmark]: Boogie Preprocessor took 43.85ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 65.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:42:13,779 INFO L158 Benchmark]: RCFGBuilder took 1331.43ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 80.1MB in the end (delta: -15.0MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2022-11-03 03:42:13,780 INFO L158 Benchmark]: TraceAbstraction took 57138.86ms. Allocated memory was 125.8MB in the beginning and 10.1GB in the end (delta: 10.0GB). Free memory was 79.4MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-03 03:42:13,780 INFO L158 Benchmark]: Witness Printer took 56.03ms. Allocated memory is still 10.1GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:42:13,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 59.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.60ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 71.7MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.70ms. Allocated memory is still 98.6MB. Free memory was 71.7MB in the beginning and 68.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.85ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 65.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1331.43ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 80.1MB in the end (delta: -15.0MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * TraceAbstraction took 57138.86ms. Allocated memory was 125.8MB in the beginning and 10.1GB in the end (delta: 10.0GB). Free memory was 79.4MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 56.03ms. Allocated memory is still 10.1GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.0s, 381 PlacesBefore, 128 PlacesAfterwards, 391 TransitionsBefore, 127 TransitionsAfterwards, 29070 CoEnabledTransitionPairs, 15 FixpointIterations, 188 TrivialSequentialCompositions, 208 ConcurrentSequentialCompositions, 29 TrivialYvCompositions, 25 ConcurrentYvCompositions, 11 ChoiceCompositions, 461 TotalNumberOfCompositions, 154203 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47982, positive: 46050, positive conditional: 0, positive unconditional: 46050, negative: 1932, negative conditional: 0, negative unconditional: 1932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22777, positive: 22445, positive conditional: 0, positive unconditional: 22445, negative: 332, negative conditional: 0, negative unconditional: 332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22777, positive: 20389, positive conditional: 0, positive unconditional: 20389, negative: 2388, negative conditional: 0, negative unconditional: 2388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2388, positive: 2056, positive conditional: 0, positive unconditional: 2056, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 201, unknown conditional: 0, unknown unconditional: 201] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10130, positive: 2959, positive conditional: 0, positive unconditional: 2959, negative: 444, negative conditional: 0, negative unconditional: 444, unknown: 6726, unknown conditional: 0, unknown unconditional: 6726] ], Cache Queries: [ total: 47982, positive: 23605, positive conditional: 0, positive unconditional: 23605, negative: 1600, negative conditional: 0, negative unconditional: 1600, unknown: 22777, unknown conditional: 0, unknown unconditional: 22777] , Statistics on independence cache: Total cache size (in pairs): 2422, Positive cache size: 2303, Positive conditional cache size: 0, Positive unconditional cache size: 2303, Negative cache size: 119, Negative conditional cache size: 0, Negative unconditional cache size: 119 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 549 locations, 79 error locations. Started 1 CEGAR loops. OverallTime: 56.9s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 36.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 913 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 913 mSDsluCounter, 1458 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1432 mSDsCounter, 306 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2353 IncrementalHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 306 mSolverCounterUnsat, 617 mSDtfsCounter, 2353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104081occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 705 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 911 SizeOfPredicates, 11 NumberOfNonLiveVariables, 442 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 13/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 03:42:13,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d29ceeb-5ccc-4a30-b5ce-9985a50cfc3c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE