./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW --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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- 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-4e7fbc6 [2022-11-23 16:04:49,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:04:49,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:04:49,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:04:49,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:04:49,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:04:49,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:04:49,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:04:49,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:04:49,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:04:49,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:04:49,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:04:49,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:04:49,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:04:49,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:04:49,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:04:49,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:04:49,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:04:49,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:04:49,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:04:49,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:04:49,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:04:49,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:04:49,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:04:49,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:04:49,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:04:49,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:04:49,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:04:49,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:04:49,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:04:49,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:04:49,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:04:49,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:04:49,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:04:49,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:04:49,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:04:49,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:04:49,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:04:49,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:04:49,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:04:49,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:04:49,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 16:04:49,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:04:49,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:04:49,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:04:49,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:04:49,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:04:49,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:04:49,884 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:04:49,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:04:49,885 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:04:49,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:04:49,886 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:04:49,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:04:49,887 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:04:49,887 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:04:49,887 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:04:49,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:04:49,888 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:04:49,888 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:04:49,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:04:49,890 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:04:49,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 16:04:49,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:04:49,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:04:49,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:04:49,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:04:49,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:04:49,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:04:49,893 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 16:04:49,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:04:49,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:04:49,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:04:49,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:04:49,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:04:49,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:04:49,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:04:49,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:04:49,895 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:04:49,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:04:49,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:04:49,898 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:04:49,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:04:49,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:04:49,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:04:49,899 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_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2022-11-23 16:04:50,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:04:50,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:04:50,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:04:50,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:04:50,360 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:04:50,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-23 16:04:53,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:04:53,811 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:04:53,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-23 16:04:53,832 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/data/064e3dc8f/aedf43a229bb45789b3200de26bd77fc/FLAG689154940 [2022-11-23 16:04:53,849 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/data/064e3dc8f/aedf43a229bb45789b3200de26bd77fc [2022-11-23 16:04:53,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:04:53,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:04:53,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:04:53,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:04:53,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:04:53,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:53" (1/1) ... [2022-11-23 16:04:53,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f76301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:53, skipping insertion in model container [2022-11-23 16:04:53,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:53" (1/1) ... [2022-11-23 16:04:53,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:04:53,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:04:54,265 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 16:04:54,669 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_0455db09-df89-48b6-8e48-c037facc0d9a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-23 16:04:54,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:04:54,740 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:04:54,778 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 16:04:54,810 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_0455db09-df89-48b6-8e48-c037facc0d9a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-23 16:04:54,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:04:54,943 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:04:54,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54 WrapperNode [2022-11-23 16:04:54,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:04:54,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:04:54,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:04:54,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:04:54,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:54,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,017 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-11-23 16:04:55,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:04:55,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:04:55,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:04:55,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:04:55,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,088 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:04:55,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:04:55,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:04:55,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:04:55,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (1/1) ... [2022-11-23 16:04:55,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:04:55,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:04:55,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:04:55,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0455db09-df89-48b6-8e48-c037facc0d9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:04:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 16:04:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:04:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:04:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 16:04:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:04:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-23 16:04:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-23 16:04:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 16:04:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 16:04:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 16:04:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 16:04:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 16:04:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 16:04:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:04:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:04:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:04:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:04:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:04:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:04:55,231 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 16:04:55,505 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:04:55,507 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:04:56,066 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:04:56,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:04:56,148 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 16:04:56,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:56 BoogieIcfgContainer [2022-11-23 16:04:56,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:04:56,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:04:56,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:04:56,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:04:56,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:04:53" (1/3) ... [2022-11-23 16:04:56,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c29833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:56, skipping insertion in model container [2022-11-23 16:04:56,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:54" (2/3) ... [2022-11-23 16:04:56,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c29833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:56, skipping insertion in model container [2022-11-23 16:04:56,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:56" (3/3) ... [2022-11-23 16:04:56,171 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-11-23 16:04:56,182 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 16:04:56,196 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:04:56,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-23 16:04:56,196 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 16:04:56,451 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-23 16:04:56,500 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 16:04:56,533 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 285 transitions, 677 flow [2022-11-23 16:04:56,540 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 285 transitions, 677 flow [2022-11-23 16:04:56,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 285 transitions, 677 flow [2022-11-23 16:04:56,670 INFO L130 PetriNetUnfolder]: 7/198 cut-off events. [2022-11-23 16:04:56,671 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-23 16:04:56,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 198 events. 7/198 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-11-23 16:04:56,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-11-23 16:05:14,306 INFO L134 LiptonReduction]: Checked pairs total: 30838 [2022-11-23 16:05:14,306 INFO L136 LiptonReduction]: Total number of compositions: 184 [2022-11-23 16:05:14,316 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143 places, 132 transitions, 371 flow [2022-11-23 16:05:18,056 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 53879 states, 53468 states have (on average 4.781196229520461) internal successors, (255641), 53878 states have internal predecessors, (255641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:18,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:05:18,162 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;@3afb7a41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:05:18,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-23 16:05:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 53879 states, 53468 states have (on average 4.781196229520461) internal successors, (255641), 53878 states have internal predecessors, (255641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 16:05:18,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:18,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 16:05:18,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:18,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:18,346 INFO L85 PathProgramCache]: Analyzing trace with hash 740648784, now seen corresponding path program 1 times [2022-11-23 16:05:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:18,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789290583] [2022-11-23 16:05:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:18,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:18,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:18,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789290583] [2022-11-23 16:05:18,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789290583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:18,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:18,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 16:05:18,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327963894] [2022-11-23 16:05:18,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:18,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 16:05:18,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:18,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 16:05:18,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:05:18,930 INFO L87 Difference]: Start difference. First operand has 53879 states, 53468 states have (on average 4.781196229520461) internal successors, (255641), 53878 states have internal predecessors, (255641), 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) [2022-11-23 16:05:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:19,430 INFO L93 Difference]: Finished difference Result 8795 states and 36024 transitions. [2022-11-23 16:05:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 16:05:19,433 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 [2022-11-23 16:05:19,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:19,544 INFO L225 Difference]: With dead ends: 8795 [2022-11-23 16:05:19,544 INFO L226 Difference]: Without dead ends: 8788 [2022-11-23 16:05:19,545 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 [2022-11-23 16:05:19,549 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:19,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:05:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8788 states. [2022-11-23 16:05:20,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8788 to 8788. [2022-11-23 16:05:20,255 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) [2022-11-23 16:05:20,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 36008 transitions. [2022-11-23 16:05:20,339 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 36008 transitions. Word has length 5 [2022-11-23 16:05:20,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:20,341 INFO L495 AbstractCegarLoop]: Abstraction has 8788 states and 36008 transitions. [2022-11-23 16:05:20,345 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) [2022-11-23 16:05:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 36008 transitions. [2022-11-23 16:05:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:05:20,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:20,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:20,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:05:20,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash -206138992, now seen corresponding path program 1 times [2022-11-23 16:05:20,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:20,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075877646] [2022-11-23 16:05:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:20,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:21,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:21,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075877646] [2022-11-23 16:05:21,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075877646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:21,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:21,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:05:21,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069647988] [2022-11-23 16:05:21,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:21,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:05:21,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:21,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:05:21,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:05:21,229 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) [2022-11-23 16:05:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:22,877 INFO L93 Difference]: Finished difference Result 13227 states and 52743 transitions. [2022-11-23 16:05:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:05:22,878 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 [2022-11-23 16:05:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:23,001 INFO L225 Difference]: With dead ends: 13227 [2022-11-23 16:05:23,001 INFO L226 Difference]: Without dead ends: 13203 [2022-11-23 16:05:23,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:05:23,003 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 178 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:23,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 174 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 16:05:23,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13203 states. [2022-11-23 16:05:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13203 to 12285. [2022-11-23 16:05:23,630 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) [2022-11-23 16:05:23,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12285 states to 12285 states and 49905 transitions. [2022-11-23 16:05:23,707 INFO L78 Accepts]: Start accepts. Automaton has 12285 states and 49905 transitions. Word has length 8 [2022-11-23 16:05:23,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:23,708 INFO L495 AbstractCegarLoop]: Abstraction has 12285 states and 49905 transitions. [2022-11-23 16:05:23,708 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) [2022-11-23 16:05:23,708 INFO L276 IsEmpty]: Start isEmpty. Operand 12285 states and 49905 transitions. [2022-11-23 16:05:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:05:23,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:23,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:23,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:05:23,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:23,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1420326979, now seen corresponding path program 1 times [2022-11-23 16:05:23,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:23,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73879221] [2022-11-23 16:05:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:24,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:24,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73879221] [2022-11-23 16:05:24,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73879221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:24,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:24,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:05:24,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549352334] [2022-11-23 16:05:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:24,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:05:24,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:05:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:05:24,093 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) [2022-11-23 16:05:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:24,835 INFO L93 Difference]: Finished difference Result 12271 states and 49872 transitions. [2022-11-23 16:05:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:05:24,836 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 [2022-11-23 16:05:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:24,938 INFO L225 Difference]: With dead ends: 12271 [2022-11-23 16:05:24,938 INFO L226 Difference]: Without dead ends: 12271 [2022-11-23 16:05:24,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:05:24,944 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:24,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 58 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 16:05:24,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-11-23 16:05:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 12271. [2022-11-23 16:05:25,523 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) [2022-11-23 16:05:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12271 states to 12271 states and 49872 transitions. [2022-11-23 16:05:25,595 INFO L78 Accepts]: Start accepts. Automaton has 12271 states and 49872 transitions. Word has length 8 [2022-11-23 16:05:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:25,595 INFO L495 AbstractCegarLoop]: Abstraction has 12271 states and 49872 transitions. [2022-11-23 16:05:25,596 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) [2022-11-23 16:05:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 12271 states and 49872 transitions. [2022-11-23 16:05:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:25,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:25,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:25,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 16:05:25,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:25,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1601907228, now seen corresponding path program 1 times [2022-11-23 16:05:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:25,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93776818] [2022-11-23 16:05:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:25,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:26,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:26,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93776818] [2022-11-23 16:05:26,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93776818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:26,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:26,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:26,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751457408] [2022-11-23 16:05:26,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:26,787 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) [2022-11-23 16:05:28,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:28,813 INFO L93 Difference]: Finished difference Result 17138 states and 69052 transitions. [2022-11-23 16:05:28,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 16:05:28,814 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 [2022-11-23 16:05:28,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:28,955 INFO L225 Difference]: With dead ends: 17138 [2022-11-23 16:05:28,955 INFO L226 Difference]: Without dead ends: 17126 [2022-11-23 16:05:28,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:05:28,957 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 503 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:28,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 195 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 16:05:29,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17126 states. [2022-11-23 16:05:29,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17126 to 14397. [2022-11-23 16:05:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14397 states, 14388 states have (on average 4.101056435918821) internal successors, (59006), 14396 states have internal predecessors, (59006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14397 states to 14397 states and 59006 transitions. [2022-11-23 16:05:29,797 INFO L78 Accepts]: Start accepts. Automaton has 14397 states and 59006 transitions. Word has length 22 [2022-11-23 16:05:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:29,800 INFO L495 AbstractCegarLoop]: Abstraction has 14397 states and 59006 transitions. [2022-11-23 16:05:29,801 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) [2022-11-23 16:05:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 14397 states and 59006 transitions. [2022-11-23 16:05:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:29,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:29,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:29,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 16:05:29,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 346521030, now seen corresponding path program 2 times [2022-11-23 16:05:29,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:29,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584950893] [2022-11-23 16:05:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:30,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:30,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584950893] [2022-11-23 16:05:30,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584950893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:30,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:30,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:30,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467320251] [2022-11-23 16:05:30,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:30,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:30,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:30,989 INFO L87 Difference]: Start difference. First operand 14397 states and 59006 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) [2022-11-23 16:05:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:33,765 INFO L93 Difference]: Finished difference Result 20392 states and 82863 transitions. [2022-11-23 16:05:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 16:05:33,766 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 [2022-11-23 16:05:33,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:33,886 INFO L225 Difference]: With dead ends: 20392 [2022-11-23 16:05:33,886 INFO L226 Difference]: Without dead ends: 20380 [2022-11-23 16:05:33,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:05:33,888 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 464 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:33,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 358 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 16:05:33,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20380 states. [2022-11-23 16:05:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20380 to 15481. [2022-11-23 16:05:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15481 states, 15472 states have (on average 4.111297828335057) internal successors, (63610), 15480 states have internal predecessors, (63610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15481 states to 15481 states and 63610 transitions. [2022-11-23 16:05:34,845 INFO L78 Accepts]: Start accepts. Automaton has 15481 states and 63610 transitions. Word has length 22 [2022-11-23 16:05:34,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:34,845 INFO L495 AbstractCegarLoop]: Abstraction has 15481 states and 63610 transitions. [2022-11-23 16:05:34,846 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) [2022-11-23 16:05:34,846 INFO L276 IsEmpty]: Start isEmpty. Operand 15481 states and 63610 transitions. [2022-11-23 16:05:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:34,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:34,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:34,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 16:05:34,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1347554496, now seen corresponding path program 3 times [2022-11-23 16:05:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:34,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474682369] [2022-11-23 16:05:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:35,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:35,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474682369] [2022-11-23 16:05:35,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474682369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:35,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:35,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663307639] [2022-11-23 16:05:35,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:35,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:35,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:35,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:35,971 INFO L87 Difference]: Start difference. First operand 15481 states and 63610 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) [2022-11-23 16:05:38,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:38,184 INFO L93 Difference]: Finished difference Result 22568 states and 92084 transitions. [2022-11-23 16:05:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 16:05:38,185 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 [2022-11-23 16:05:38,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:38,308 INFO L225 Difference]: With dead ends: 22568 [2022-11-23 16:05:38,308 INFO L226 Difference]: Without dead ends: 22556 [2022-11-23 16:05:38,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:05:38,309 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 424 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:38,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 315 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-23 16:05:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22556 states. [2022-11-23 16:05:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22556 to 16565. [2022-11-23 16:05:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16565 states, 16556 states have (on average 4.120500120802126) internal successors, (68219), 16564 states have internal predecessors, (68219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16565 states to 16565 states and 68219 transitions. [2022-11-23 16:05:39,218 INFO L78 Accepts]: Start accepts. Automaton has 16565 states and 68219 transitions. Word has length 22 [2022-11-23 16:05:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:39,219 INFO L495 AbstractCegarLoop]: Abstraction has 16565 states and 68219 transitions. [2022-11-23 16:05:39,219 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) [2022-11-23 16:05:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16565 states and 68219 transitions. [2022-11-23 16:05:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:39,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:39,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:39,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 16:05:39,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 187576544, now seen corresponding path program 4 times [2022-11-23 16:05:39,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:39,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833016042] [2022-11-23 16:05:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:39,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:40,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:40,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833016042] [2022-11-23 16:05:40,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833016042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:40,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:40,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:40,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105732161] [2022-11-23 16:05:40,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:40,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:40,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:40,110 INFO L87 Difference]: Start difference. First operand 16565 states and 68219 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) [2022-11-23 16:05:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:41,777 INFO L93 Difference]: Finished difference Result 20995 states and 86815 transitions. [2022-11-23 16:05:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 16:05:41,778 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 [2022-11-23 16:05:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:41,868 INFO L225 Difference]: With dead ends: 20995 [2022-11-23 16:05:41,868 INFO L226 Difference]: Without dead ends: 20979 [2022-11-23 16:05:41,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:05:41,869 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 379 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:41,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 240 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 16:05:42,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20979 states. [2022-11-23 16:05:42,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20979 to 13021. [2022-11-23 16:05:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13021 states, 13012 states have (on average 4.123962496157393) internal successors, (53661), 13020 states have internal predecessors, (53661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13021 states to 13021 states and 53661 transitions. [2022-11-23 16:05:42,738 INFO L78 Accepts]: Start accepts. Automaton has 13021 states and 53661 transitions. Word has length 22 [2022-11-23 16:05:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:42,738 INFO L495 AbstractCegarLoop]: Abstraction has 13021 states and 53661 transitions. [2022-11-23 16:05:42,738 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) [2022-11-23 16:05:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 13021 states and 53661 transitions. [2022-11-23 16:05:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:42,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:42,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:42,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 16:05:42,742 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash 943508252, now seen corresponding path program 5 times [2022-11-23 16:05:42,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689634394] [2022-11-23 16:05:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:42,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:43,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689634394] [2022-11-23 16:05:43,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689634394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:43,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:43,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124241250] [2022-11-23 16:05:43,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:43,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:43,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:43,568 INFO L87 Difference]: Start difference. First operand 13021 states and 53661 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) [2022-11-23 16:05:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:45,800 INFO L93 Difference]: Finished difference Result 22587 states and 90879 transitions. [2022-11-23 16:05:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 16:05:45,800 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 [2022-11-23 16:05:45,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:45,895 INFO L225 Difference]: With dead ends: 22587 [2022-11-23 16:05:45,895 INFO L226 Difference]: Without dead ends: 22575 [2022-11-23 16:05:45,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:05:45,897 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 454 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:45,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 245 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-23 16:05:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22575 states. [2022-11-23 16:05:46,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22575 to 13028. [2022-11-23 16:05:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13028 states, 13019 states have (on average 4.123204547200245) internal successors, (53680), 13027 states have internal predecessors, (53680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 53680 transitions. [2022-11-23 16:05:46,633 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 53680 transitions. Word has length 22 [2022-11-23 16:05:46,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:46,633 INFO L495 AbstractCegarLoop]: Abstraction has 13028 states and 53680 transitions. [2022-11-23 16:05:46,633 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) [2022-11-23 16:05:46,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 53680 transitions. [2022-11-23 16:05:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:46,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:46,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:46,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 16:05:46,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:46,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1403030786, now seen corresponding path program 6 times [2022-11-23 16:05:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931087621] [2022-11-23 16:05:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:46,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:47,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:47,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:47,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931087621] [2022-11-23 16:05:47,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931087621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:47,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:47,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095847372] [2022-11-23 16:05:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:47,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:47,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:47,412 INFO L87 Difference]: Start difference. First operand 13028 states and 53680 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) [2022-11-23 16:05:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:50,259 INFO L93 Difference]: Finished difference Result 25841 states and 104690 transitions. [2022-11-23 16:05:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 16:05:50,260 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 [2022-11-23 16:05:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:50,372 INFO L225 Difference]: With dead ends: 25841 [2022-11-23 16:05:50,373 INFO L226 Difference]: Without dead ends: 25829 [2022-11-23 16:05:50,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:05:50,374 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 532 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:50,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 333 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 16:05:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25829 states. [2022-11-23 16:05:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25829 to 13021. [2022-11-23 16:05:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13021 states, 13012 states have (on average 4.123962496157393) internal successors, (53661), 13020 states have internal predecessors, (53661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13021 states to 13021 states and 53661 transitions. [2022-11-23 16:05:50,883 INFO L78 Accepts]: Start accepts. Automaton has 13021 states and 53661 transitions. Word has length 22 [2022-11-23 16:05:50,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:50,883 INFO L495 AbstractCegarLoop]: Abstraction has 13021 states and 53661 transitions. [2022-11-23 16:05:50,883 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) [2022-11-23 16:05:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 13021 states and 53661 transitions. [2022-11-23 16:05:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:50,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:50,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:50,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 16:05:50,885 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:50,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1197860984, now seen corresponding path program 7 times [2022-11-23 16:05:50,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:50,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531804921] [2022-11-23 16:05:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:50,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:51,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:51,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531804921] [2022-11-23 16:05:51,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531804921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:51,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:51,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:51,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703252515] [2022-11-23 16:05:51,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:51,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:51,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:51,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:51,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:51,837 INFO L87 Difference]: Start difference. First operand 13021 states and 53661 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) [2022-11-23 16:05:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:54,803 INFO L93 Difference]: Finished difference Result 26269 states and 105883 transitions. [2022-11-23 16:05:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 16:05:54,804 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 [2022-11-23 16:05:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:55,129 INFO L225 Difference]: With dead ends: 26269 [2022-11-23 16:05:55,129 INFO L226 Difference]: Without dead ends: 26257 [2022-11-23 16:05:55,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:05:55,130 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 433 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:55,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 422 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 16:05:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26257 states. [2022-11-23 16:05:55,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26257 to 11926. [2022-11-23 16:05:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11926 states, 11917 states have (on average 4.114206595619703) internal successors, (49029), 11925 states have internal predecessors, (49029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:05:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11926 states to 11926 states and 49029 transitions. [2022-11-23 16:05:55,543 INFO L78 Accepts]: Start accepts. Automaton has 11926 states and 49029 transitions. Word has length 22 [2022-11-23 16:05:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:55,543 INFO L495 AbstractCegarLoop]: Abstraction has 11926 states and 49029 transitions. [2022-11-23 16:05:55,543 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) [2022-11-23 16:05:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 11926 states and 49029 transitions. [2022-11-23 16:05:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:05:55,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:55,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:55,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 16:05:55,547 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:05:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1030370780, now seen corresponding path program 8 times [2022-11-23 16:05:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:55,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909656597] [2022-11-23 16:05:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:55,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:05:56,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:56,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909656597] [2022-11-23 16:05:56,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909656597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:56,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:56,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:05:56,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947360462] [2022-11-23 16:05:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:56,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:05:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:56,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:05:56,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:05:56,247 INFO L87 Difference]: Start difference. First operand 11926 states and 49029 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) [2022-11-23 16:05:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:59,448 INFO L93 Difference]: Finished difference Result 23142 states and 92703 transitions. [2022-11-23 16:05:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 16:05:59,448 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 [2022-11-23 16:05:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:59,562 INFO L225 Difference]: With dead ends: 23142 [2022-11-23 16:05:59,562 INFO L226 Difference]: Without dead ends: 23130 [2022-11-23 16:05:59,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:05:59,563 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 453 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:59,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 440 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-23 16:05:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23130 states. [2022-11-23 16:06:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23130 to 11912. [2022-11-23 16:06:00,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11912 states, 11903 states have (on average 4.115853146265647) internal successors, (48991), 11911 states have internal predecessors, (48991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11912 states to 11912 states and 48991 transitions. [2022-11-23 16:06:00,154 INFO L78 Accepts]: Start accepts. Automaton has 11912 states and 48991 transitions. Word has length 22 [2022-11-23 16:06:00,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:00,154 INFO L495 AbstractCegarLoop]: Abstraction has 11912 states and 48991 transitions. [2022-11-23 16:06:00,155 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) [2022-11-23 16:06:00,155 INFO L276 IsEmpty]: Start isEmpty. Operand 11912 states and 48991 transitions. [2022-11-23 16:06:00,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 16:06:00,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:00,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:00,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 16:06:00,157 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:00,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash 918057478, now seen corresponding path program 9 times [2022-11-23 16:06:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:00,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94462422] [2022-11-23 16:06:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:00,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:00,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94462422] [2022-11-23 16:06:00,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94462422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:00,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:00,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 16:06:00,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428647112] [2022-11-23 16:06:00,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:00,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:06:00,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:00,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:06:00,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:06:00,813 INFO L87 Difference]: Start difference. First operand 11912 states and 48991 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) [2022-11-23 16:06:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:03,761 INFO L93 Difference]: Finished difference Result 22044 states and 88232 transitions. [2022-11-23 16:06:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 16:06:03,762 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 [2022-11-23 16:06:03,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:03,874 INFO L225 Difference]: With dead ends: 22044 [2022-11-23 16:06:03,874 INFO L226 Difference]: Without dead ends: 22032 [2022-11-23 16:06:03,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2022-11-23 16:06:03,875 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 469 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:03,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 369 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 16:06:03,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22032 states. [2022-11-23 16:06:04,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22032 to 7718. [2022-11-23 16:06:04,201 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) [2022-11-23 16:06:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 31420 transitions. [2022-11-23 16:06:04,228 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 31420 transitions. Word has length 22 [2022-11-23 16:06:04,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:04,229 INFO L495 AbstractCegarLoop]: Abstraction has 7718 states and 31420 transitions. [2022-11-23 16:06:04,229 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) [2022-11-23 16:06:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 31420 transitions. [2022-11-23 16:06:04,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 16:06:04,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:04,233 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] [2022-11-23 16:06:04,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 16:06:04,233 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash -622760530, now seen corresponding path program 1 times [2022-11-23 16:06:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:04,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925763645] [2022-11-23 16:06:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:04,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:04,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:04,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925763645] [2022-11-23 16:06:04,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925763645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:04,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:04,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:06:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554204403] [2022-11-23 16:06:04,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:04,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:06:04,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:04,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:06:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:04,585 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) [2022-11-23 16:06:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:05,202 INFO L93 Difference]: Finished difference Result 12387 states and 49076 transitions. [2022-11-23 16:06:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:06:05,202 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 [2022-11-23 16:06:05,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:05,246 INFO L225 Difference]: With dead ends: 12387 [2022-11-23 16:06:05,246 INFO L226 Difference]: Without dead ends: 12387 [2022-11-23 16:06:05,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:05,246 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 68 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:05,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 109 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:06:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states. [2022-11-23 16:06:05,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 9434. [2022-11-23 16:06:05,511 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) [2022-11-23 16:06:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 38416 transitions. [2022-11-23 16:06:05,544 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 38416 transitions. Word has length 26 [2022-11-23 16:06:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:05,545 INFO L495 AbstractCegarLoop]: Abstraction has 9434 states and 38416 transitions. [2022-11-23 16:06:05,545 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) [2022-11-23 16:06:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 38416 transitions. [2022-11-23 16:06:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 16:06:05,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:05,557 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] [2022-11-23 16:06:05,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 16:06:05,558 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1277131676, now seen corresponding path program 1 times [2022-11-23 16:06:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:05,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976912313] [2022-11-23 16:06:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:05,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:06,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:06,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976912313] [2022-11-23 16:06:06,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976912313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:06,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:06,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:06:06,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637717797] [2022-11-23 16:06:06,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:06,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:06:06,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:06,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:06:06,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:06:06,174 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) [2022-11-23 16:06:06,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:06,770 INFO L93 Difference]: Finished difference Result 8979 states and 36505 transitions. [2022-11-23 16:06:06,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:06:06,770 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 [2022-11-23 16:06:06,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:06,816 INFO L225 Difference]: With dead ends: 8979 [2022-11-23 16:06:06,816 INFO L226 Difference]: Without dead ends: 8979 [2022-11-23 16:06:06,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-23 16:06:06,817 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 240 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:06,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 107 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:06:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8979 states. [2022-11-23 16:06:07,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8979 to 7151. [2022-11-23 16:06:07,208 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) [2022-11-23 16:06:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 28853 transitions. [2022-11-23 16:06:07,233 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 28853 transitions. Word has length 28 [2022-11-23 16:06:07,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:07,233 INFO L495 AbstractCegarLoop]: Abstraction has 7151 states and 28853 transitions. [2022-11-23 16:06:07,233 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) [2022-11-23 16:06:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 28853 transitions. [2022-11-23 16:06:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 16:06:07,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:07,251 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] [2022-11-23 16:06:07,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 16:06:07,251 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1216317484, now seen corresponding path program 1 times [2022-11-23 16:06:07,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:07,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812631612] [2022-11-23 16:06:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:07,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:07,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812631612] [2022-11-23 16:06:07,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812631612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:07,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:07,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:06:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025127480] [2022-11-23 16:06:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:07,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:06:07,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:06:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:07,665 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) [2022-11-23 16:06:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:08,177 INFO L93 Difference]: Finished difference Result 8549 states and 33169 transitions. [2022-11-23 16:06:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:06:08,178 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 [2022-11-23 16:06:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:08,221 INFO L225 Difference]: With dead ends: 8549 [2022-11-23 16:06:08,221 INFO L226 Difference]: Without dead ends: 8549 [2022-11-23 16:06:08,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:08,222 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 36 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:08,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 106 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:06:08,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-11-23 16:06:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7635. [2022-11-23 16:06:08,459 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) [2022-11-23 16:06:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7635 states to 7635 states and 30425 transitions. [2022-11-23 16:06:08,485 INFO L78 Accepts]: Start accepts. Automaton has 7635 states and 30425 transitions. Word has length 36 [2022-11-23 16:06:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:08,485 INFO L495 AbstractCegarLoop]: Abstraction has 7635 states and 30425 transitions. [2022-11-23 16:06:08,486 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) [2022-11-23 16:06:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7635 states and 30425 transitions. [2022-11-23 16:06:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 16:06:08,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:08,499 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] [2022-11-23 16:06:08,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 16:06:08,500 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash 685324840, now seen corresponding path program 1 times [2022-11-23 16:06:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:08,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581660423] [2022-11-23 16:06:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:09,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:09,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581660423] [2022-11-23 16:06:09,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581660423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:09,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:09,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:06:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971885758] [2022-11-23 16:06:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:09,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:06:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:06:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:06:09,121 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) [2022-11-23 16:06:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:09,745 INFO L93 Difference]: Finished difference Result 7502 states and 29966 transitions. [2022-11-23 16:06:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:06:09,746 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 [2022-11-23 16:06:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:09,779 INFO L225 Difference]: With dead ends: 7502 [2022-11-23 16:06:09,779 INFO L226 Difference]: Without dead ends: 7502 [2022-11-23 16:06:09,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-23 16:06:09,787 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 135 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:09,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 112 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 16:06:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2022-11-23 16:06:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 6962. [2022-11-23 16:06:10,006 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) [2022-11-23 16:06:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 28122 transitions. [2022-11-23 16:06:10,033 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 28122 transitions. Word has length 38 [2022-11-23 16:06:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:10,033 INFO L495 AbstractCegarLoop]: Abstraction has 6962 states and 28122 transitions. [2022-11-23 16:06:10,033 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) [2022-11-23 16:06:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 28122 transitions. [2022-11-23 16:06:10,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 16:06:10,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:10,049 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] [2022-11-23 16:06:10,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 16:06:10,049 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:10,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1978947082, now seen corresponding path program 1 times [2022-11-23 16:06:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:10,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165436714] [2022-11-23 16:06:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:10,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:10,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165436714] [2022-11-23 16:06:10,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165436714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:10,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:10,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:06:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159878192] [2022-11-23 16:06:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:10,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:06:10,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:10,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:06:10,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:10,533 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) [2022-11-23 16:06:10,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:10,869 INFO L93 Difference]: Finished difference Result 7315 states and 28972 transitions. [2022-11-23 16:06:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:06:10,870 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 [2022-11-23 16:06:10,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:10,903 INFO L225 Difference]: With dead ends: 7315 [2022-11-23 16:06:10,903 INFO L226 Difference]: Without dead ends: 7315 [2022-11-23 16:06:10,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:10,904 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 36 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:10,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 65 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 16:06:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2022-11-23 16:06:11,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7082. [2022-11-23 16:06:11,132 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) [2022-11-23 16:06:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 28402 transitions. [2022-11-23 16:06:11,168 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 28402 transitions. Word has length 46 [2022-11-23 16:06:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:11,169 INFO L495 AbstractCegarLoop]: Abstraction has 7082 states and 28402 transitions. [2022-11-23 16:06:11,169 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) [2022-11-23 16:06:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 28402 transitions. [2022-11-23 16:06:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 16:06:11,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:11,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:11,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 16:06:11,193 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:11,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1967755320, now seen corresponding path program 1 times [2022-11-23 16:06:11,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:11,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085002343] [2022-11-23 16:06:11,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:11,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:11,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085002343] [2022-11-23 16:06:11,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085002343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:11,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:11,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:06:11,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996383349] [2022-11-23 16:06:11,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:11,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:06:11,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:06:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:06:11,806 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) [2022-11-23 16:06:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:12,261 INFO L93 Difference]: Finished difference Result 7047 states and 28307 transitions. [2022-11-23 16:06:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:06:12,262 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 [2022-11-23 16:06:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:12,285 INFO L225 Difference]: With dead ends: 7047 [2022-11-23 16:06:12,285 INFO L226 Difference]: Without dead ends: 7047 [2022-11-23 16:06:12,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-23 16:06:12,286 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 144 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:12,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 104 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 16:06:12,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2022-11-23 16:06:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 6899. [2022-11-23 16:06:12,438 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) [2022-11-23 16:06:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 27919 transitions. [2022-11-23 16:06:12,466 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 27919 transitions. Word has length 48 [2022-11-23 16:06:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:12,466 INFO L495 AbstractCegarLoop]: Abstraction has 6899 states and 27919 transitions. [2022-11-23 16:06:12,466 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) [2022-11-23 16:06:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 27919 transitions. [2022-11-23 16:06:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 16:06:12,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:12,488 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] [2022-11-23 16:06:12,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 16:06:12,489 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:12,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash -311176470, now seen corresponding path program 1 times [2022-11-23 16:06:12,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:12,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155041619] [2022-11-23 16:06:12,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:12,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:13,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:13,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155041619] [2022-11-23 16:06:13,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155041619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:13,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:13,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:06:13,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053951451] [2022-11-23 16:06:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:13,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:06:13,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:06:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:13,120 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) [2022-11-23 16:06:13,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:13,491 INFO L93 Difference]: Finished difference Result 6927 states and 27951 transitions. [2022-11-23 16:06:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 16:06:13,492 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 [2022-11-23 16:06:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:13,527 INFO L225 Difference]: With dead ends: 6927 [2022-11-23 16:06:13,527 INFO L226 Difference]: Without dead ends: 5931 [2022-11-23 16:06:13,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:06:13,528 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 24 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:13,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 68 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 16:06:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2022-11-23 16:06:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 5925. [2022-11-23 16:06:13,721 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) [2022-11-23 16:06:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 23506 transitions. [2022-11-23 16:06:13,751 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 23506 transitions. Word has length 56 [2022-11-23 16:06:13,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:13,752 INFO L495 AbstractCegarLoop]: Abstraction has 5925 states and 23506 transitions. [2022-11-23 16:06:13,752 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) [2022-11-23 16:06:13,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 23506 transitions. [2022-11-23 16:06:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 16:06:13,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:13,770 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] [2022-11-23 16:06:13,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 16:06:13,771 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:13,772 INFO L85 PathProgramCache]: Analyzing trace with hash 350982695, now seen corresponding path program 1 times [2022-11-23 16:06:13,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:13,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172460143] [2022-11-23 16:06:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:13,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:14,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:14,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172460143] [2022-11-23 16:06:14,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172460143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:14,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:14,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:06:14,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849824888] [2022-11-23 16:06:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:14,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:06:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:14,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:06:14,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-23 16:06:14,398 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) [2022-11-23 16:06:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:14,785 INFO L93 Difference]: Finished difference Result 5918 states and 23491 transitions. [2022-11-23 16:06:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:06:14,786 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 [2022-11-23 16:06:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:14,802 INFO L225 Difference]: With dead ends: 5918 [2022-11-23 16:06:14,803 INFO L226 Difference]: Without dead ends: 3853 [2022-11-23 16:06:14,803 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 [2022-11-23 16:06:14,804 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:14,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 91 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 16:06:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2022-11-23 16:06:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3845. [2022-11-23 16:06:14,911 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) [2022-11-23 16:06:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 15178 transitions. [2022-11-23 16:06:14,924 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 15178 transitions. Word has length 58 [2022-11-23 16:06:14,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:14,924 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 15178 transitions. [2022-11-23 16:06:14,924 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) [2022-11-23 16:06:14,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 15178 transitions. [2022-11-23 16:06:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:14,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:14,933 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] [2022-11-23 16:06:14,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 16:06:14,933 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:14,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1622159145, now seen corresponding path program 1 times [2022-11-23 16:06:14,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:14,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744122797] [2022-11-23 16:06:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:18,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:18,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:18,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744122797] [2022-11-23 16:06:18,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744122797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:18,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:18,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 16:06:18,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076610011] [2022-11-23 16:06:18,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:18,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:06:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:06:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:06:18,440 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) [2022-11-23 16:06:19,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:19,660 INFO L93 Difference]: Finished difference Result 6700 states and 25435 transitions. [2022-11-23 16:06:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 16:06:19,661 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 [2022-11-23 16:06:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:19,682 INFO L225 Difference]: With dead ends: 6700 [2022-11-23 16:06:19,682 INFO L226 Difference]: Without dead ends: 5722 [2022-11-23 16:06:19,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2022-11-23 16:06:19,684 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 323 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:19,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 120 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 16:06:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5722 states. [2022-11-23 16:06:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5722 to 3852. [2022-11-23 16:06:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3851 states have (on average 3.944430018177097) internal successors, (15190), 3851 states have internal predecessors, (15190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 15190 transitions. [2022-11-23 16:06:19,847 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 15190 transitions. Word has length 67 [2022-11-23 16:06:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:19,847 INFO L495 AbstractCegarLoop]: Abstraction has 3852 states and 15190 transitions. [2022-11-23 16:06:19,848 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) [2022-11-23 16:06:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 15190 transitions. [2022-11-23 16:06:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:19,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:19,860 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] [2022-11-23 16:06:19,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 16:06:19,861 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:19,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1019017629, now seen corresponding path program 2 times [2022-11-23 16:06:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:19,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199201136] [2022-11-23 16:06:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:23,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:23,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199201136] [2022-11-23 16:06:23,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199201136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:23,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:23,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 16:06:23,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664014784] [2022-11-23 16:06:23,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:23,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:06:23,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:06:23,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:06:23,072 INFO L87 Difference]: Start difference. First operand 3852 states and 15190 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) [2022-11-23 16:06:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:24,491 INFO L93 Difference]: Finished difference Result 7661 states and 29505 transitions. [2022-11-23 16:06:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 16:06:24,492 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 [2022-11-23 16:06:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:24,525 INFO L225 Difference]: With dead ends: 7661 [2022-11-23 16:06:24,525 INFO L226 Difference]: Without dead ends: 6690 [2022-11-23 16:06:24,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2022-11-23 16:06:24,535 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 321 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:24,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 146 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 16:06:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6690 states. [2022-11-23 16:06:24,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6690 to 4820. [2022-11-23 16:06:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 4819 states have (on average 3.7997509856816767) internal successors, (18311), 4819 states have internal predecessors, (18311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 18311 transitions. [2022-11-23 16:06:24,675 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 18311 transitions. Word has length 67 [2022-11-23 16:06:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 18311 transitions. [2022-11-23 16:06:24,676 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) [2022-11-23 16:06:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 18311 transitions. [2022-11-23 16:06:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:24,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:24,691 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] [2022-11-23 16:06:24,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 16:06:24,691 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash 124507011, now seen corresponding path program 3 times [2022-11-23 16:06:24,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:24,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274727973] [2022-11-23 16:06:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:24,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:27,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:27,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274727973] [2022-11-23 16:06:27,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274727973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:27,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:27,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 16:06:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093642894] [2022-11-23 16:06:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:27,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:06:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:06:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:06:27,823 INFO L87 Difference]: Start difference. First operand 4820 states and 18311 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) [2022-11-23 16:06:29,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:29,513 INFO L93 Difference]: Finished difference Result 8332 states and 31178 transitions. [2022-11-23 16:06:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 16:06:29,513 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 [2022-11-23 16:06:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:29,538 INFO L225 Difference]: With dead ends: 8332 [2022-11-23 16:06:29,539 INFO L226 Difference]: Without dead ends: 5401 [2022-11-23 16:06:29,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:06:29,540 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 262 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:29,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 171 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 16:06:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2022-11-23 16:06:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 3829. [2022-11-23 16:06:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3828 states have (on average 3.954022988505747) internal successors, (15136), 3828 states have internal predecessors, (15136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 15136 transitions. [2022-11-23 16:06:29,685 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 15136 transitions. Word has length 67 [2022-11-23 16:06:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:29,686 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 15136 transitions. [2022-11-23 16:06:29,686 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) [2022-11-23 16:06:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 15136 transitions. [2022-11-23 16:06:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:29,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:29,698 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] [2022-11-23 16:06:29,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 16:06:29,699 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:29,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash -122396675, now seen corresponding path program 4 times [2022-11-23 16:06:29,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:29,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567015271] [2022-11-23 16:06:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:34,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:34,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567015271] [2022-11-23 16:06:34,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567015271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:34,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:34,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 16:06:34,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684394070] [2022-11-23 16:06:34,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:34,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 16:06:34,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:34,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 16:06:34,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:06:34,238 INFO L87 Difference]: Start difference. First operand 3829 states and 15136 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) [2022-11-23 16:06:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:35,324 INFO L93 Difference]: Finished difference Result 3832 states and 15138 transitions. [2022-11-23 16:06:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 16:06:35,324 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 [2022-11-23 16:06:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:35,335 INFO L225 Difference]: With dead ends: 3832 [2022-11-23 16:06:35,335 INFO L226 Difference]: Without dead ends: 2861 [2022-11-23 16:06:35,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-23 16:06:35,336 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 305 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:35,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 103 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 16:06:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2022-11-23 16:06:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2861. [2022-11-23 16:06:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2860 states have (on average 3.8625874125874127) internal successors, (11047), 2860 states have internal predecessors, (11047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 11047 transitions. [2022-11-23 16:06:35,426 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 11047 transitions. Word has length 67 [2022-11-23 16:06:35,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:35,427 INFO L495 AbstractCegarLoop]: Abstraction has 2861 states and 11047 transitions. [2022-11-23 16:06:35,427 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) [2022-11-23 16:06:35,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 11047 transitions. [2022-11-23 16:06:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:35,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:35,437 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] [2022-11-23 16:06:35,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 16:06:35,438 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:35,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1016907293, now seen corresponding path program 5 times [2022-11-23 16:06:35,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:35,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478052614] [2022-11-23 16:06:35,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:35,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:06:39,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:39,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478052614] [2022-11-23 16:06:39,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478052614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:39,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:39,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 16:06:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456700514] [2022-11-23 16:06:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:39,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 16:06:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 16:06:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-23 16:06:39,962 INFO L87 Difference]: Start difference. First operand 2861 states and 11047 transitions. Second operand has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2022-11-23 16:06:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:41,092 INFO L93 Difference]: Finished difference Result 3648 states and 13474 transitions. [2022-11-23 16:06:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 16:06:41,093 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 [2022-11-23 16:06:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:41,102 INFO L225 Difference]: With dead ends: 3648 [2022-11-23 16:06:41,103 INFO L226 Difference]: Without dead ends: 2559 [2022-11-23 16:06:41,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2022-11-23 16:06:41,104 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 278 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:41,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 97 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 16:06:41,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-11-23 16:06:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2045. [2022-11-23 16:06:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2044 states have (on average 3.696673189823875) internal successors, (7556), 2044 states have internal predecessors, (7556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:06:41,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 7556 transitions. [2022-11-23 16:06:41,176 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 7556 transitions. Word has length 67 [2022-11-23 16:06:41,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:41,177 INFO L495 AbstractCegarLoop]: Abstraction has 2045 states and 7556 transitions. [2022-11-23 16:06:41,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2022-11-23 16:06:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 7556 transitions. [2022-11-23 16:06:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 16:06:41,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:41,183 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] [2022-11-23 16:06:41,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 16:06:41,183 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 16:06:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 640709101, now seen corresponding path program 6 times [2022-11-23 16:06:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:41,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478975915] [2022-11-23 16:06:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat