./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- 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-2329fc7 [2022-12-14 11:23:27,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:23:27,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:23:27,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:23:27,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:23:27,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:23:27,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:23:27,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:23:27,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:23:27,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:23:27,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:23:27,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:23:27,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:23:27,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:23:27,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:23:27,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:23:27,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:23:27,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:23:27,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:23:27,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:23:27,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:23:27,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:23:27,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:23:27,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:23:27,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:23:27,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:23:27,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:23:27,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:23:27,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:23:27,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:23:27,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:23:27,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:23:27,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:23:27,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:23:27,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:23:27,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:23:27,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:23:27,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:23:27,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:23:27,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:23:27,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:23:27,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:23:27,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:23:27,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:23:27,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:23:27,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:23:27,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:23:27,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:23:27,750 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:23:27,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:23:27,751 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:23:27,751 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:23:27,751 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:23:27,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:23:27,752 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:23:27,752 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:23:27,752 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:23:27,752 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:23:27,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:23:27,753 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:23:27,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:23:27,753 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:23:27,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:23:27,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:23:27,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:23:27,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:23:27,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:23:27,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:23:27,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:23:27,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:23:27,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:23:27,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:27,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:23:27,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:23:27,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:23:27,758 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_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-12-14 11:23:27,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:23:27,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:23:27,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:23:27,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:23:27,985 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:23:27,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/singleton.i [2022-12-14 11:23:30,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:23:30,735 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:23:30,735 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/sv-benchmarks/c/pthread/singleton.i [2022-12-14 11:23:30,746 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/data/4dab1d088/bf80ac78875141db8e6b11b389344e2e/FLAGae2cc5ea4 [2022-12-14 11:23:30,757 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/data/4dab1d088/bf80ac78875141db8e6b11b389344e2e [2022-12-14 11:23:30,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:23:30,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:23:30,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:30,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:23:30,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:23:30,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:30" (1/1) ... [2022-12-14 11:23:30,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d962fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:30, skipping insertion in model container [2022-12-14 11:23:30,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:30" (1/1) ... [2022-12-14 11:23:30,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:23:30,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:23:30,937 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:31,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-14 11:23:31,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:23:31,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:23:31,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:23:31,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:23:31,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:31,172 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:23:31,184 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:31,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-14 11:23:31,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:23:31,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:23:31,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:23:31,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:23:31,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:31,265 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:23:31,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31 WrapperNode [2022-12-14 11:23:31,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:31,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:31,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:23:31,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:23:31,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,314 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-12-14 11:23:31,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:31,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:23:31,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:23:31,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:23:31,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:23:31,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:23:31,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:23:31,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:23:31,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (1/1) ... [2022-12-14 11:23:31,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:31,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:23:31,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:23:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 11:23:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-14 11:23:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 11:23:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 11:23:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 11:23:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 11:23:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 11:23:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 11:23:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:23:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:23:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:23:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:23:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:23:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:23:31,409 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 11:23:31,509 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:23:31,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:23:31,772 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:23:31,798 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:23:31,798 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:23:31,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:31 BoogieIcfgContainer [2022-12-14 11:23:31,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:23:31,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:23:31,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:23:31,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:23:31,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:23:30" (1/3) ... [2022-12-14 11:23:31,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0e3522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:31, skipping insertion in model container [2022-12-14 11:23:31,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:31" (2/3) ... [2022-12-14 11:23:31,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0e3522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:31, skipping insertion in model container [2022-12-14 11:23:31,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:31" (3/3) ... [2022-12-14 11:23:31,808 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-12-14 11:23:31,816 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:23:31,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:23:31,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-14 11:23:31,826 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:23:31,928 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-14 11:23:31,954 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:23:31,965 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 272 transitions, 651 flow [2022-12-14 11:23:31,967 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 272 transitions, 651 flow [2022-12-14 11:23:31,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 272 transitions, 651 flow [2022-12-14 11:23:32,015 INFO L130 PetriNetUnfolder]: 6/185 cut-off events. [2022-12-14 11:23:32,015 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-14 11:23:32,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 185 events. 6/185 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2022-12-14 11:23:32,022 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-12-14 11:23:41,043 INFO L134 LiptonReduction]: Checked pairs total: 27643 [2022-12-14 11:23:41,044 INFO L136 LiptonReduction]: Total number of compositions: 164 [2022-12-14 11:23:41,049 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 130 transitions, 367 flow [2022-12-14 11:23:42,637 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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) [2022-12-14 11:23:42,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:23:42,655 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;@d80d98c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:23:42,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-12-14 11:23:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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) [2022-12-14 11:23:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:23:42,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:42,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:23:42,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash 695384699, now seen corresponding path program 1 times [2022-12-14 11:23:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:42,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283233727] [2022-12-14 11:23:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:42,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:42,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:42,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283233727] [2022-12-14 11:23:42,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283233727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:42,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:42,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:23:42,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171419685] [2022-12-14 11:23:42,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:42,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:23:42,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:42,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:23:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:23:42,967 INFO L87 Difference]: Start difference. First operand has 53877 states, 53468 states have (on average 4.781158823969477) internal successors, (255639), 53876 states have internal predecessors, (255639), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 11:23:43,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:43,222 INFO L93 Difference]: Finished difference Result 8795 states and 36024 transitions. [2022-12-14 11:23:43,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:23:43,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 11:23:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:43,289 INFO L225 Difference]: With dead ends: 8795 [2022-12-14 11:23:43,289 INFO L226 Difference]: Without dead ends: 8788 [2022-12-14 11:23:43,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:23:43,292 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:43,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:43,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8788 states. [2022-12-14 11:23:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8788 to 8788. [2022-12-14 11:23:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8777 states have (on average 4.102540731457218) internal successors, (36008), 8787 states have internal predecessors, (36008), 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) [2022-12-14 11:23:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 36008 transitions. [2022-12-14 11:23:43,657 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 36008 transitions. Word has length 5 [2022-12-14 11:23:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:43,658 INFO L495 AbstractCegarLoop]: Abstraction has 8788 states and 36008 transitions. [2022-12-14 11:23:43,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-12-14 11:23:43,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 36008 transitions. [2022-12-14 11:23:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:23:43,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:43,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:43,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:23:43,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -328613992, now seen corresponding path program 1 times [2022-12-14 11:23:43,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:43,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726281506] [2022-12-14 11:23:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:43,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:43,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:43,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726281506] [2022-12-14 11:23:43,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726281506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:43,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:43,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:23:43,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925156517] [2022-12-14 11:23:43,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:43,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:23:43,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:43,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:23:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:23:43,939 INFO L87 Difference]: Start difference. First operand 8788 states and 36008 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-12-14 11:23:44,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:44,667 INFO L93 Difference]: Finished difference Result 13227 states and 52743 transitions. [2022-12-14 11:23:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:23:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2022-12-14 11:23:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:44,741 INFO L225 Difference]: With dead ends: 13227 [2022-12-14 11:23:44,742 INFO L226 Difference]: Without dead ends: 13203 [2022-12-14 11:23:44,742 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 [2022-12-14 11:23:44,743 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 179 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:44,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 150 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 11:23:44,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2022-12-14 11:23:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 12285. [2022-12-14 11:23:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12285 states, 12275 states have (on average 4.065580448065173) internal successors, (49905), 12284 states have internal predecessors, (49905), 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) [2022-12-14 11:23:45,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12285 states to 12285 states and 49905 transitions. [2022-12-14 11:23:45,102 INFO L78 Accepts]: Start accepts. Automaton has 12285 states and 49905 transitions. Word has length 8 [2022-12-14 11:23:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:45,103 INFO L495 AbstractCegarLoop]: Abstraction has 12285 states and 49905 transitions. [2022-12-14 11:23:45,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-12-14 11:23:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 12285 states and 49905 transitions. [2022-12-14 11:23:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:23:45,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:45,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:23:45,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1578118759, now seen corresponding path program 1 times [2022-12-14 11:23:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:45,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216892564] [2022-12-14 11:23:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:45,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:45,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216892564] [2022-12-14 11:23:45,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216892564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:45,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:45,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:23:45,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855250594] [2022-12-14 11:23:45,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:45,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:23:45,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:45,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:23:45,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:23:45,357 INFO L87 Difference]: Start difference. First operand 12285 states and 49905 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-12-14 11:23:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:45,573 INFO L93 Difference]: Finished difference Result 12271 states and 49872 transitions. [2022-12-14 11:23:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:23:45,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-12-14 11:23:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:45,626 INFO L225 Difference]: With dead ends: 12271 [2022-12-14 11:23:45,626 INFO L226 Difference]: Without dead ends: 12271 [2022-12-14 11:23:45,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:23:45,628 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:45,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 58 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:23:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-12-14 11:23:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 12271. [2022-12-14 11:23:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12271 states, 12262 states have (on average 4.067199478062307) internal successors, (49872), 12270 states have internal predecessors, (49872), 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) [2022-12-14 11:23:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12271 states to 12271 states and 49872 transitions. [2022-12-14 11:23:45,902 INFO L78 Accepts]: Start accepts. Automaton has 12271 states and 49872 transitions. Word has length 8 [2022-12-14 11:23:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:45,902 INFO L495 AbstractCegarLoop]: Abstraction has 12271 states and 49872 transitions. [2022-12-14 11:23:45,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-12-14 11:23:45,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12271 states and 49872 transitions. [2022-12-14 11:23:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:45,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:45,905 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] [2022-12-14 11:23:45,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:23:45,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:45,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1918128845, now seen corresponding path program 1 times [2022-12-14 11:23:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:45,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024565030] [2022-12-14 11:23:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:46,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:46,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024565030] [2022-12-14 11:23:46,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024565030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:46,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:46,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757167874] [2022-12-14 11:23:46,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:46,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:46,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:46,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:46,580 INFO L87 Difference]: Start difference. First operand 12271 states and 49872 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:47,649 INFO L93 Difference]: Finished difference Result 17546 states and 68937 transitions. [2022-12-14 11:23:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 11:23:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:47,699 INFO L225 Difference]: With dead ends: 17546 [2022-12-14 11:23:47,699 INFO L226 Difference]: Without dead ends: 17535 [2022-12-14 11:23:47,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:23:47,700 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 547 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:47,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 216 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:23:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17535 states. [2022-12-14 11:23:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17535 to 13320. [2022-12-14 11:23:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13320 states, 13311 states have (on average 4.086920591991586) internal successors, (54401), 13319 states have internal predecessors, (54401), 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) [2022-12-14 11:23:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13320 states to 13320 states and 54401 transitions. [2022-12-14 11:23:48,124 INFO L78 Accepts]: Start accepts. Automaton has 13320 states and 54401 transitions. Word has length 22 [2022-12-14 11:23:48,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:48,125 INFO L495 AbstractCegarLoop]: Abstraction has 13320 states and 54401 transitions. [2022-12-14 11:23:48,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 13320 states and 54401 transitions. [2022-12-14 11:23:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:48,127 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:48,127 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] [2022-12-14 11:23:48,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:23:48,127 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1383589351, now seen corresponding path program 2 times [2022-12-14 11:23:48,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:48,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278009727] [2022-12-14 11:23:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:48,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:48,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278009727] [2022-12-14 11:23:48,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278009727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:48,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:48,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581846955] [2022-12-14 11:23:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:48,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:48,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:48,631 INFO L87 Difference]: Start difference. First operand 13320 states and 54401 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:50,261 INFO L93 Difference]: Finished difference Result 21896 states and 87381 transitions. [2022-12-14 11:23:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:23:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:50,335 INFO L225 Difference]: With dead ends: 21896 [2022-12-14 11:23:50,335 INFO L226 Difference]: Without dead ends: 21874 [2022-12-14 11:23:50,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:23:50,336 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 594 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:50,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 326 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:23:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21874 states. [2022-12-14 11:23:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21874 to 14369. [2022-12-14 11:23:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14369 states, 14360 states have (on average 4.103760445682451) internal successors, (58930), 14368 states have internal predecessors, (58930), 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) [2022-12-14 11:23:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14369 states to 14369 states and 58930 transitions. [2022-12-14 11:23:50,799 INFO L78 Accepts]: Start accepts. Automaton has 14369 states and 58930 transitions. Word has length 22 [2022-12-14 11:23:50,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:50,799 INFO L495 AbstractCegarLoop]: Abstraction has 14369 states and 58930 transitions. [2022-12-14 11:23:50,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 14369 states and 58930 transitions. [2022-12-14 11:23:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:50,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:50,801 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] [2022-12-14 11:23:50,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:23:50,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1274264223, now seen corresponding path program 3 times [2022-12-14 11:23:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:50,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241901597] [2022-12-14 11:23:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:51,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:51,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241901597] [2022-12-14 11:23:51,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241901597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:51,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:51,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:51,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795976604] [2022-12-14 11:23:51,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:51,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:51,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:51,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:51,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:51,279 INFO L87 Difference]: Start difference. First operand 14369 states and 58930 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:52,871 INFO L93 Difference]: Finished difference Result 22981 states and 91990 transitions. [2022-12-14 11:23:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:23:52,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:52,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:52,951 INFO L225 Difference]: With dead ends: 22981 [2022-12-14 11:23:52,951 INFO L226 Difference]: Without dead ends: 22969 [2022-12-14 11:23:52,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:23:52,952 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 499 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:52,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 337 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:23:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22969 states. [2022-12-14 11:23:53,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22969 to 15460. [2022-12-14 11:23:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15451 states have (on average 4.113196556857162) internal successors, (63553), 15459 states have internal predecessors, (63553), 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) [2022-12-14 11:23:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 63553 transitions. [2022-12-14 11:23:53,445 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 63553 transitions. Word has length 22 [2022-12-14 11:23:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:53,445 INFO L495 AbstractCegarLoop]: Abstraction has 15460 states and 63553 transitions. [2022-12-14 11:23:53,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:53,445 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 63553 transitions. [2022-12-14 11:23:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:53,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:53,447 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] [2022-12-14 11:23:53,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:23:53,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:53,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1436736877, now seen corresponding path program 4 times [2022-12-14 11:23:53,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:53,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852841562] [2022-12-14 11:23:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:53,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852841562] [2022-12-14 11:23:53,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852841562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:53,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:53,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911110082] [2022-12-14 11:23:53,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:53,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:53,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:53,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:53,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:53,885 INFO L87 Difference]: Start difference. First operand 15460 states and 63553 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:55,135 INFO L93 Difference]: Finished difference Result 25252 states and 102774 transitions. [2022-12-14 11:23:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:23:55,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:55,205 INFO L225 Difference]: With dead ends: 25252 [2022-12-14 11:23:55,206 INFO L226 Difference]: Without dead ends: 25240 [2022-12-14 11:23:55,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:23:55,206 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 557 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:55,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 292 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 11:23:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25240 states. [2022-12-14 11:23:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25240 to 15467. [2022-12-14 11:23:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15458 states have (on average 4.11256307413637) internal successors, (63572), 15466 states have internal predecessors, (63572), 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) [2022-12-14 11:23:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 63572 transitions. [2022-12-14 11:23:55,565 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 63572 transitions. Word has length 22 [2022-12-14 11:23:55,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:55,566 INFO L495 AbstractCegarLoop]: Abstraction has 15467 states and 63572 transitions. [2022-12-14 11:23:55,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 63572 transitions. [2022-12-14 11:23:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:55,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:55,567 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] [2022-12-14 11:23:55,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:23:55,567 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1771595923, now seen corresponding path program 5 times [2022-12-14 11:23:55,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:55,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685542205] [2022-12-14 11:23:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:55,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685542205] [2022-12-14 11:23:55,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685542205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:55,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:55,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131594670] [2022-12-14 11:23:55,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:55,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:55,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:55,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:55,939 INFO L87 Difference]: Start difference. First operand 15467 states and 63572 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:57,277 INFO L93 Difference]: Finished difference Result 25164 states and 101230 transitions. [2022-12-14 11:23:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:23:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:57,348 INFO L225 Difference]: With dead ends: 25164 [2022-12-14 11:23:57,348 INFO L226 Difference]: Without dead ends: 25152 [2022-12-14 11:23:57,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:23:57,349 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 430 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:57,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 376 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:23:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25152 states. [2022-12-14 11:23:57,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25152 to 16551. [2022-12-14 11:23:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16551 states, 16542 states have (on average 4.121690243017773) internal successors, (68181), 16550 states have internal predecessors, (68181), 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) [2022-12-14 11:23:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16551 states to 16551 states and 68181 transitions. [2022-12-14 11:23:57,730 INFO L78 Accepts]: Start accepts. Automaton has 16551 states and 68181 transitions. Word has length 22 [2022-12-14 11:23:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:57,730 INFO L495 AbstractCegarLoop]: Abstraction has 16551 states and 68181 transitions. [2022-12-14 11:23:57,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:57,730 INFO L276 IsEmpty]: Start isEmpty. Operand 16551 states and 68181 transitions. [2022-12-14 11:23:57,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:57,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:57,731 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] [2022-12-14 11:23:57,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:23:57,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash 609721403, now seen corresponding path program 6 times [2022-12-14 11:23:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:57,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512467957] [2022-12-14 11:23:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:58,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:58,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512467957] [2022-12-14 11:23:58,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512467957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:58,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:58,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699117111] [2022-12-14 11:23:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:58,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:58,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:58,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:58,059 INFO L87 Difference]: Start difference. First operand 16551 states and 68181 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:59,032 INFO L93 Difference]: Finished difference Result 20981 states and 86777 transitions. [2022-12-14 11:23:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:23:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:23:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:59,089 INFO L225 Difference]: With dead ends: 20981 [2022-12-14 11:23:59,089 INFO L226 Difference]: Without dead ends: 20965 [2022-12-14 11:23:59,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:23:59,090 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 449 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:59,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 192 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:23:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20965 states. [2022-12-14 11:23:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20965 to 13007. [2022-12-14 11:23:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13007 states, 12998 states have (on average 4.125480843206647) internal successors, (53623), 13006 states have internal predecessors, (53623), 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) [2022-12-14 11:23:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13007 states to 13007 states and 53623 transitions. [2022-12-14 11:23:59,388 INFO L78 Accepts]: Start accepts. Automaton has 13007 states and 53623 transitions. Word has length 22 [2022-12-14 11:23:59,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:59,389 INFO L495 AbstractCegarLoop]: Abstraction has 13007 states and 53623 transitions. [2022-12-14 11:23:59,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:23:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 13007 states and 53623 transitions. [2022-12-14 11:23:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:23:59,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:59,390 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] [2022-12-14 11:23:59,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:23:59,390 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:23:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1991729475, now seen corresponding path program 7 times [2022-12-14 11:23:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:59,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975429474] [2022-12-14 11:23:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:59,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:59,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975429474] [2022-12-14 11:23:59,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975429474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:59,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:59,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:23:59,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010331356] [2022-12-14 11:23:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:59,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:23:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:23:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:59,718 INFO L87 Difference]: Start difference. First operand 13007 states and 53623 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:24:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:00,888 INFO L93 Difference]: Finished difference Result 24730 states and 101270 transitions. [2022-12-14 11:24:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:24:00,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:24:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:00,963 INFO L225 Difference]: With dead ends: 24730 [2022-12-14 11:24:00,963 INFO L226 Difference]: Without dead ends: 24718 [2022-12-14 11:24:00,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:24:00,964 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 420 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:00,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 316 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:24:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24718 states. [2022-12-14 11:24:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24718 to 11919. [2022-12-14 11:24:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11919 states, 11910 states have (on average 4.115029387069689) internal successors, (49010), 11918 states have internal predecessors, (49010), 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) [2022-12-14 11:24:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11919 states to 11919 states and 49010 transitions. [2022-12-14 11:24:01,271 INFO L78 Accepts]: Start accepts. Automaton has 11919 states and 49010 transitions. Word has length 22 [2022-12-14 11:24:01,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:01,271 INFO L495 AbstractCegarLoop]: Abstraction has 11919 states and 49010 transitions. [2022-12-14 11:24:01,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:24:01,271 INFO L276 IsEmpty]: Start isEmpty. Operand 11919 states and 49010 transitions. [2022-12-14 11:24:01,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:24:01,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:01,272 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] [2022-12-14 11:24:01,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:24:01,272 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1978790945, now seen corresponding path program 8 times [2022-12-14 11:24:01,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:01,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973981042] [2022-12-14 11:24:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:01,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:01,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:01,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973981042] [2022-12-14 11:24:01,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973981042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:01,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:01,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:24:01,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782923633] [2022-12-14 11:24:01,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:01,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:24:01,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:24:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:24:01,584 INFO L87 Difference]: Start difference. First operand 11919 states and 49010 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:24:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:02,889 INFO L93 Difference]: Finished difference Result 19455 states and 79105 transitions. [2022-12-14 11:24:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:24:02,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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 [2022-12-14 11:24:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:02,941 INFO L225 Difference]: With dead ends: 19455 [2022-12-14 11:24:02,941 INFO L226 Difference]: Without dead ends: 19443 [2022-12-14 11:24:02,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:24:02,942 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 379 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:02,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 416 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:24:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19443 states. [2022-12-14 11:24:03,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19443 to 7718. [2022-12-14 11:24:03,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7713 states have (on average 4.073641903280176) internal successors, (31420), 7717 states have internal predecessors, (31420), 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) [2022-12-14 11:24:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 31420 transitions. [2022-12-14 11:24:03,188 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 31420 transitions. Word has length 22 [2022-12-14 11:24:03,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:03,188 INFO L495 AbstractCegarLoop]: Abstraction has 7718 states and 31420 transitions. [2022-12-14 11:24:03,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2022-12-14 11:24:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 31420 transitions. [2022-12-14 11:24:03,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 11:24:03,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:03,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:03,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:24:03,193 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash 131627483, now seen corresponding path program 1 times [2022-12-14 11:24:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781337833] [2022-12-14 11:24:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:03,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:03,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781337833] [2022-12-14 11:24:03,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781337833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:03,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:03,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465571412] [2022-12-14 11:24:03,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:03,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:03,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:03,389 INFO L87 Difference]: Start difference. First operand 7718 states and 31420 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-12-14 11:24:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:03,660 INFO L93 Difference]: Finished difference Result 12387 states and 49076 transitions. [2022-12-14 11:24:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:24:03,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2022-12-14 11:24:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:03,690 INFO L225 Difference]: With dead ends: 12387 [2022-12-14 11:24:03,690 INFO L226 Difference]: Without dead ends: 12387 [2022-12-14 11:24:03,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:03,691 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 68 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:03,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 81 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:24:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states. [2022-12-14 11:24:03,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 9434. [2022-12-14 11:24:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9434 states, 9429 states have (on average 4.0742390497401635) internal successors, (38416), 9433 states have internal predecessors, (38416), 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) [2022-12-14 11:24:03,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 38416 transitions. [2022-12-14 11:24:03,872 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 38416 transitions. Word has length 26 [2022-12-14 11:24:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:03,872 INFO L495 AbstractCegarLoop]: Abstraction has 9434 states and 38416 transitions. [2022-12-14 11:24:03,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-12-14 11:24:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 38416 transitions. [2022-12-14 11:24:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 11:24:03,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:03,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:03,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:24:03,878 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2032453519, now seen corresponding path program 1 times [2022-12-14 11:24:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:03,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348513365] [2022-12-14 11:24:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:04,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:04,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348513365] [2022-12-14 11:24:04,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348513365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:04,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:04,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:24:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331388922] [2022-12-14 11:24:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:24:04,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:24:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:04,137 INFO L87 Difference]: Start difference. First operand 9434 states and 38416 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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) [2022-12-14 11:24:04,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:04,508 INFO L93 Difference]: Finished difference Result 8979 states and 36505 transitions. [2022-12-14 11:24:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:24:04,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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 28 [2022-12-14 11:24:04,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:04,529 INFO L225 Difference]: With dead ends: 8979 [2022-12-14 11:24:04,530 INFO L226 Difference]: Without dead ends: 8979 [2022-12-14 11:24:04,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:04,530 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 202 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:04,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 108 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:24:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8979 states. [2022-12-14 11:24:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8979 to 7151. [2022-12-14 11:24:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 7147 states have (on average 4.037078494473206) internal successors, (28853), 7150 states have internal predecessors, (28853), 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) [2022-12-14 11:24:04,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 28853 transitions. [2022-12-14 11:24:04,668 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 28853 transitions. Word has length 28 [2022-12-14 11:24:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:04,669 INFO L495 AbstractCegarLoop]: Abstraction has 7151 states and 28853 transitions. [2022-12-14 11:24:04,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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) [2022-12-14 11:24:04,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 28853 transitions. [2022-12-14 11:24:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 11:24:04,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:04,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:04,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:24:04,683 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1255658179, now seen corresponding path program 1 times [2022-12-14 11:24:04,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:04,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931152720] [2022-12-14 11:24:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:04,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:04,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:04,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931152720] [2022-12-14 11:24:04,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931152720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:04,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:04,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33018251] [2022-12-14 11:24:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:04,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:04,881 INFO L87 Difference]: Start difference. First operand 7151 states and 28853 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2022-12-14 11:24:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:05,095 INFO L93 Difference]: Finished difference Result 8549 states and 33169 transitions. [2022-12-14 11:24:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:24:05,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2022-12-14 11:24:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:05,116 INFO L225 Difference]: With dead ends: 8549 [2022-12-14 11:24:05,116 INFO L226 Difference]: Without dead ends: 8549 [2022-12-14 11:24:05,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:05,117 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 68 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:05,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 72 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:24:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-12-14 11:24:05,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7635. [2022-12-14 11:24:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7635 states, 7631 states have (on average 3.987026602018084) internal successors, (30425), 7634 states have internal predecessors, (30425), 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) [2022-12-14 11:24:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7635 states to 7635 states and 30425 transitions. [2022-12-14 11:24:05,265 INFO L78 Accepts]: Start accepts. Automaton has 7635 states and 30425 transitions. Word has length 36 [2022-12-14 11:24:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:05,266 INFO L495 AbstractCegarLoop]: Abstraction has 7635 states and 30425 transitions. [2022-12-14 11:24:05,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2022-12-14 11:24:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7635 states and 30425 transitions. [2022-12-14 11:24:05,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 11:24:05,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:05,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:05,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:24:05,275 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash 60020093, now seen corresponding path program 1 times [2022-12-14 11:24:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:05,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371044901] [2022-12-14 11:24:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:05,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:05,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371044901] [2022-12-14 11:24:05,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371044901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:05,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:05,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:24:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940054255] [2022-12-14 11:24:05,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:05,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:24:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:24:05,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:05,503 INFO L87 Difference]: Start difference. First operand 7635 states and 30425 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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) [2022-12-14 11:24:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:05,762 INFO L93 Difference]: Finished difference Result 7502 states and 29966 transitions. [2022-12-14 11:24:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:24:05,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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 38 [2022-12-14 11:24:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:05,779 INFO L225 Difference]: With dead ends: 7502 [2022-12-14 11:24:05,780 INFO L226 Difference]: Without dead ends: 7502 [2022-12-14 11:24:05,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:05,780 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 166 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:05,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 106 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:24:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2022-12-14 11:24:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 6962. [2022-12-14 11:24:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6959 states have (on average 4.041097858887771) internal successors, (28122), 6961 states have internal predecessors, (28122), 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) [2022-12-14 11:24:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 28122 transitions. [2022-12-14 11:24:05,901 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 28122 transitions. Word has length 38 [2022-12-14 11:24:05,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:05,901 INFO L495 AbstractCegarLoop]: Abstraction has 6962 states and 28122 transitions. [2022-12-14 11:24:05,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 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) [2022-12-14 11:24:05,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 28122 transitions. [2022-12-14 11:24:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 11:24:05,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:05,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:05,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:24:05,912 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1254703710, now seen corresponding path program 1 times [2022-12-14 11:24:05,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:05,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542360432] [2022-12-14 11:24:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:05,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:06,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542360432] [2022-12-14 11:24:06,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542360432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:06,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:06,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:06,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500085767] [2022-12-14 11:24:06,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:06,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:06,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:06,115 INFO L87 Difference]: Start difference. First operand 6962 states and 28122 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-12-14 11:24:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:06,271 INFO L93 Difference]: Finished difference Result 7315 states and 28972 transitions. [2022-12-14 11:24:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:24:06,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2022-12-14 11:24:06,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:06,288 INFO L225 Difference]: With dead ends: 7315 [2022-12-14 11:24:06,288 INFO L226 Difference]: Without dead ends: 7315 [2022-12-14 11:24:06,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:06,289 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:06,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 61 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2022-12-14 11:24:06,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7082. [2022-12-14 11:24:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7079 states have (on average 4.012148608560532) internal successors, (28402), 7081 states have internal predecessors, (28402), 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) [2022-12-14 11:24:06,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 28402 transitions. [2022-12-14 11:24:06,407 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 28402 transitions. Word has length 46 [2022-12-14 11:24:06,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:06,407 INFO L495 AbstractCegarLoop]: Abstraction has 7082 states and 28402 transitions. [2022-12-14 11:24:06,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-12-14 11:24:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 28402 transitions. [2022-12-14 11:24:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 11:24:06,418 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:06,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:06,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:24:06,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash 920165349, now seen corresponding path program 1 times [2022-12-14 11:24:06,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:06,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039830717] [2022-12-14 11:24:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:06,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:06,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:06,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039830717] [2022-12-14 11:24:06,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039830717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:06,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:06,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:24:06,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220618432] [2022-12-14 11:24:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:06,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:24:06,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:24:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:06,675 INFO L87 Difference]: Start difference. First operand 7082 states and 28402 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-12-14 11:24:06,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:06,903 INFO L93 Difference]: Finished difference Result 7047 states and 28307 transitions. [2022-12-14 11:24:06,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:24:06,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-12-14 11:24:06,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:06,920 INFO L225 Difference]: With dead ends: 7047 [2022-12-14 11:24:06,921 INFO L226 Difference]: Without dead ends: 7047 [2022-12-14 11:24:06,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:06,921 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 157 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:06,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 96 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:24:06,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2022-12-14 11:24:07,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 6899. [2022-12-14 11:24:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6897 states have (on average 4.047991880527766) internal successors, (27919), 6898 states have internal predecessors, (27919), 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) [2022-12-14 11:24:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 27919 transitions. [2022-12-14 11:24:07,071 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 27919 transitions. Word has length 48 [2022-12-14 11:24:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:07,072 INFO L495 AbstractCegarLoop]: Abstraction has 6899 states and 27919 transitions. [2022-12-14 11:24:07,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-12-14 11:24:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 27919 transitions. [2022-12-14 11:24:07,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 11:24:07,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:07,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:07,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 11:24:07,089 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:07,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:07,090 INFO L85 PathProgramCache]: Analyzing trace with hash -166388443, now seen corresponding path program 1 times [2022-12-14 11:24:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:07,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365739061] [2022-12-14 11:24:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:07,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:07,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365739061] [2022-12-14 11:24:07,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365739061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:07,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:07,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296507452] [2022-12-14 11:24:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:07,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:07,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:07,355 INFO L87 Difference]: Start difference. First operand 6899 states and 27919 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2022-12-14 11:24:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:07,499 INFO L93 Difference]: Finished difference Result 6927 states and 27951 transitions. [2022-12-14 11:24:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:24:07,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2022-12-14 11:24:07,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:07,513 INFO L225 Difference]: With dead ends: 6927 [2022-12-14 11:24:07,513 INFO L226 Difference]: Without dead ends: 5931 [2022-12-14 11:24:07,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:07,514 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 24 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:07,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 58 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2022-12-14 11:24:07,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 5925. [2022-12-14 11:24:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5923 states have (on average 3.9685969947661657) internal successors, (23506), 5924 states have internal predecessors, (23506), 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) [2022-12-14 11:24:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 23506 transitions. [2022-12-14 11:24:07,616 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 23506 transitions. Word has length 56 [2022-12-14 11:24:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:07,617 INFO L495 AbstractCegarLoop]: Abstraction has 5925 states and 23506 transitions. [2022-12-14 11:24:07,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2022-12-14 11:24:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 23506 transitions. [2022-12-14 11:24:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 11:24:07,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:07,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:07,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 11:24:07,626 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash -15193012, now seen corresponding path program 1 times [2022-12-14 11:24:07,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:07,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920825373] [2022-12-14 11:24:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:07,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:07,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920825373] [2022-12-14 11:24:07,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920825373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:07,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:07,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:24:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139709975] [2022-12-14 11:24:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:07,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:24:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:24:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:07,932 INFO L87 Difference]: Start difference. First operand 5925 states and 23506 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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) [2022-12-14 11:24:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:08,177 INFO L93 Difference]: Finished difference Result 5918 states and 23491 transitions. [2022-12-14 11:24:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:24:08,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2022-12-14 11:24:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:08,186 INFO L225 Difference]: With dead ends: 5918 [2022-12-14 11:24:08,187 INFO L226 Difference]: Without dead ends: 3853 [2022-12-14 11:24:08,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:24:08,187 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 109 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:08,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 101 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:24:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2022-12-14 11:24:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3845. [2022-12-14 11:24:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3844 states have (on average 3.9484911550468262) internal successors, (15178), 3844 states have internal predecessors, (15178), 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) [2022-12-14 11:24:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 15178 transitions. [2022-12-14 11:24:08,244 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 15178 transitions. Word has length 58 [2022-12-14 11:24:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:08,245 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 15178 transitions. [2022-12-14 11:24:08,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 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) [2022-12-14 11:24:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 15178 transitions. [2022-12-14 11:24:08,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:24:08,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:08,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:08,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 11:24:08,250 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:08,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:08,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1890693122, now seen corresponding path program 1 times [2022-12-14 11:24:08,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:08,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789068293] [2022-12-14 11:24:08,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:08,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:09,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:09,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789068293] [2022-12-14 11:24:09,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789068293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:09,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:09,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:24:09,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962743885] [2022-12-14 11:24:09,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:09,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:24:09,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:24:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-12-14 11:24:09,494 INFO L87 Difference]: Start difference. First operand 3845 states and 15178 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:10,235 INFO L93 Difference]: Finished difference Result 6395 states and 23967 transitions. [2022-12-14 11:24:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:24:10,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-12-14 11:24:10,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:10,246 INFO L225 Difference]: With dead ends: 6395 [2022-12-14 11:24:10,246 INFO L226 Difference]: Without dead ends: 5416 [2022-12-14 11:24:10,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:24:10,247 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 228 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:10,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 197 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:24:10,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2022-12-14 11:24:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 3844. [2022-12-14 11:24:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3843 states have (on average 3.948998178506375) internal successors, (15176), 3843 states have internal predecessors, (15176), 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) [2022-12-14 11:24:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 15176 transitions. [2022-12-14 11:24:10,320 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 15176 transitions. Word has length 67 [2022-12-14 11:24:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:10,320 INFO L495 AbstractCegarLoop]: Abstraction has 3844 states and 15176 transitions. [2022-12-14 11:24:10,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 15176 transitions. [2022-12-14 11:24:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:24:10,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:10,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:10,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 11:24:10,326 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:10,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:10,327 INFO L85 PathProgramCache]: Analyzing trace with hash 925457266, now seen corresponding path program 2 times [2022-12-14 11:24:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:10,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877473081] [2022-12-14 11:24:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:10,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:11,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:11,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877473081] [2022-12-14 11:24:11,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877473081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:11,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:11,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:24:11,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488408517] [2022-12-14 11:24:11,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:24:11,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:24:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 11:24:11,464 INFO L87 Difference]: Start difference. First operand 3844 states and 15176 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:12,118 INFO L93 Difference]: Finished difference Result 6699 states and 25433 transitions. [2022-12-14 11:24:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:24:12,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-12-14 11:24:12,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:12,130 INFO L225 Difference]: With dead ends: 6699 [2022-12-14 11:24:12,130 INFO L226 Difference]: Without dead ends: 5721 [2022-12-14 11:24:12,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:24:12,131 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 272 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:12,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 165 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 11:24:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2022-12-14 11:24:12,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 3851. [2022-12-14 11:24:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3850 states have (on average 3.944935064935065) internal successors, (15188), 3850 states have internal predecessors, (15188), 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) [2022-12-14 11:24:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 15188 transitions. [2022-12-14 11:24:12,199 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 15188 transitions. Word has length 67 [2022-12-14 11:24:12,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:12,199 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 15188 transitions. [2022-12-14 11:24:12,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:12,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 15188 transitions. [2022-12-14 11:24:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:24:12,206 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:12,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:12,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 11:24:12,206 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:12,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash -17254900, now seen corresponding path program 3 times [2022-12-14 11:24:12,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:12,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638507112] [2022-12-14 11:24:12,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:12,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:13,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:13,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638507112] [2022-12-14 11:24:13,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638507112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:13,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:13,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:24:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629584636] [2022-12-14 11:24:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:13,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:24:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:24:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 11:24:13,549 INFO L87 Difference]: Start difference. First operand 3851 states and 15188 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:14,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:14,253 INFO L93 Difference]: Finished difference Result 7363 states and 28055 transitions. [2022-12-14 11:24:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:24:14,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-12-14 11:24:14,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:14,265 INFO L225 Difference]: With dead ends: 7363 [2022-12-14 11:24:14,265 INFO L226 Difference]: Without dead ends: 5415 [2022-12-14 11:24:14,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:24:14,265 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 277 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:14,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 184 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 11:24:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2022-12-14 11:24:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 3843. [2022-12-14 11:24:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 3842 states have (on average 3.9495054659031754) internal successors, (15174), 3842 states have internal predecessors, (15174), 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) [2022-12-14 11:24:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 15174 transitions. [2022-12-14 11:24:14,332 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 15174 transitions. Word has length 67 [2022-12-14 11:24:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:14,332 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 15174 transitions. [2022-12-14 11:24:14,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 15174 transitions. [2022-12-14 11:24:14,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:24:14,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:14,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:14,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 11:24:14,338 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:14,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:14,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1236970652, now seen corresponding path program 4 times [2022-12-14 11:24:14,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:14,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925996583] [2022-12-14 11:24:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:14,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:15,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:15,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925996583] [2022-12-14 11:24:15,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925996583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:15,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:15,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:24:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010269750] [2022-12-14 11:24:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:15,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:24:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:24:15,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:24:15,453 INFO L87 Difference]: Start difference. First operand 3843 states and 15174 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2022-12-14 11:24:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:15,968 INFO L93 Difference]: Finished difference Result 5782 states and 22386 transitions. [2022-12-14 11:24:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:24:15,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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 67 [2022-12-14 11:24:15,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:15,979 INFO L225 Difference]: With dead ends: 5782 [2022-12-14 11:24:15,979 INFO L226 Difference]: Without dead ends: 4811 [2022-12-14 11:24:15,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:24:15,980 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 271 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:15,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 87 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:24:15,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2022-12-14 11:24:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4811. [2022-12-14 11:24:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4810 states have (on average 3.8035343035343034) internal successors, (18295), 4810 states have internal predecessors, (18295), 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) [2022-12-14 11:24:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 18295 transitions. [2022-12-14 11:24:16,052 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 18295 transitions. Word has length 67 [2022-12-14 11:24:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 4811 states and 18295 transitions. [2022-12-14 11:24:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2022-12-14 11:24:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 18295 transitions. [2022-12-14 11:24:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:24:16,060 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:16,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-14 11:24:16,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 11:24:16,061 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-14 11:24:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2147235140, now seen corresponding path program 5 times [2022-12-14 11:24:16,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:16,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937365358] [2022-12-14 11:24:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:17,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:17,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937365358] [2022-12-14 11:24:17,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937365358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:17,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:17,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:24:17,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414844806] [2022-12-14 11:24:17,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:17,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:24:17,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:17,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:24:17,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 11:24:17,207 INFO L87 Difference]: Start difference. First operand 4811 states and 18295 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:17,742 INFO L93 Difference]: Finished difference Result 4810 states and 18294 transitions. [2022-12-14 11:24:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:24:17,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-12-14 11:24:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:17,742 INFO L225 Difference]: With dead ends: 4810 [2022-12-14 11:24:17,742 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:24:17,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:24:17,743 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 256 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:17,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 85 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:24:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:24:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:24:17,744 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) [2022-12-14 11:24:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:24:17,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-12-14 11:24:17,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:17,744 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:24:17,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-12-14 11:24:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:24:17,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 38 remaining) [2022-12-14 11:24:17,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-12-14 11:24:17,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-12-14 11:24:17,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-12-14 11:24:17,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-12-14 11:24:17,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-12-14 11:24:17,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-12-14 11:24:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 11:24:17,753 INFO L445 BasicCegarLoop]: Path program histogram: [8, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:17,756 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:24:17,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:24:17,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:24:17 BasicIcfg [2022-12-14 11:24:17,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:24:17,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:24:17,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:24:17,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:24:17,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:31" (3/4) ... [2022-12-14 11:24:17,762 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:24:17,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-12-14 11:24:17,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-14 11:24:17,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-14 11:24:17,766 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-14 11:24:17,769 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 11:24:17,769 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 11:24:17,769 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 11:24:17,769 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:24:17,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:24:17,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:24:17,789 INFO L158 Benchmark]: Toolchain (without parser) took 47029.06ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 75.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-12-14 11:24:17,789 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:24:17,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.90ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 111.6MB in the end (delta: -36.6MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-12-14 11:24:17,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.73ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 111.5MB in the end (delta: 2.9kB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-12-14 11:24:17,790 INFO L158 Benchmark]: Boogie Preprocessor took 31.07ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:24:17,790 INFO L158 Benchmark]: RCFGBuilder took 453.62ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 87.3MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 11:24:17,790 INFO L158 Benchmark]: TraceAbstraction took 45956.22ms. Allocated memory was 142.6MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 86.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-12-14 11:24:17,791 INFO L158 Benchmark]: Witness Printer took 29.05ms. Allocated memory is still 2.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:24:17,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.90ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 111.6MB in the end (delta: -36.6MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.73ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 111.5MB in the end (delta: 2.9kB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.07ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.62ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 87.3MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 45956.22ms. Allocated memory was 142.6MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 86.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 29.05ms. Allocated memory is still 2.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 282 PlacesBefore, 141 PlacesAfterwards, 272 TransitionsBefore, 130 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 6 FixpointIterations, 95 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 164 TotalNumberOfCompositions, 27643 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12391, independent: 11690, independent conditional: 0, independent unconditional: 11690, dependent: 701, dependent conditional: 0, dependent unconditional: 701, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3006, independent: 2832, independent conditional: 0, independent unconditional: 2832, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3006, independent: 2516, independent conditional: 0, independent unconditional: 2516, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 490, independent: 316, independent conditional: 0, independent unconditional: 316, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5616, independent: 484, independent conditional: 0, independent unconditional: 484, dependent: 5132, dependent conditional: 0, dependent unconditional: 5132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12391, independent: 8858, independent conditional: 0, independent unconditional: 8858, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 3006, unknown conditional: 0, unknown unconditional: 3006] , Statistics on independence cache: Total cache size (in pairs): 1060, Positive cache size: 979, Positive conditional cache size: 0, Positive unconditional cache size: 979, Negative cache size: 81, Negative conditional cache size: 0, Negative unconditional cache size: 81, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: 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 11 procedures, 317 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 45.8s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.2s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6226 SdHoareTripleChecker+Valid, 13.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6226 mSDsluCounter, 4126 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2650 mSDsCounter, 2837 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18155 IncrementalHoareTripleChecker+Invalid, 20992 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2837 mSolverCounterUnsat, 1476 mSDtfsCounter, 18155 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53877occurred in iteration=0, InterpolantAutomatonStates: 228, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 82647 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 868 NumberOfCodeBlocks, 868 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 844 ConstructedInterpolants, 0 QuantifiedInterpolants, 17990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 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 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 11:24:17,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53b927b-f9e9-47ff-ae3d-1bb0fbb4206c/bin/utaipan-gh47qXpMRh/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