./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- 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 15:04:10,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:04:10,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:04:10,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:04:10,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:04:10,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:04:10,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:04:10,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:04:10,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:04:10,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:04:10,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:04:10,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:04:10,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:04:10,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:04:10,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:04:10,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:04:10,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:04:10,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:04:10,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:04:10,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:04:10,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:04:10,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:04:10,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:04:10,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:04:10,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:04:10,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:04:10,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:04:10,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:04:10,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:04:10,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:04:10,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:04:10,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:04:10,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:04:10,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:04:10,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:04:10,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:04:10,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:04:10,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:04:10,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:04:10,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:04:10,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:04:10,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:04:10,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:04:10,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:04:10,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:04:10,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:04:10,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:04:10,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:04:10,930 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:04:10,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:04:10,931 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:04:10,931 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:04:10,932 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:04:10,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:04:10,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:04:10,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:04:10,933 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:04:10,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:04:10,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:04:10,934 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:04:10,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:04:10,935 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:04:10,936 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:04:10,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:04:10,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:04:10,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:04:10,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:04:10,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:04:10,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:04:10,938 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:04:10,938 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:04:10,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:04:10,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:04:10,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:04:10,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:04:10,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:04:10,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:04:10,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:04:10,940 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:04:10,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:04:10,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:04:10,941 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:04:10,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:04:10,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:04:10,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:04:10,942 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-11-23 15:04:11,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:04:11,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:04:11,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:04:11,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:04:11,278 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:04:11,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-23 15:04:14,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:04:14,849 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:04:14,849 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-23 15:04:14,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/data/8bfc8eee3/90c73b3c09304f67be804dea23437051/FLAGa73b8f5a8 [2022-11-23 15:04:14,879 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/data/8bfc8eee3/90c73b3c09304f67be804dea23437051 [2022-11-23 15:04:14,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:04:14,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:04:14,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:04:14,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:04:14,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:04:14,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:14" (1/1) ... [2022-11-23 15:04:14,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3936611d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:14, skipping insertion in model container [2022-11-23 15:04:14,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:14" (1/1) ... [2022-11-23 15:04:14,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:04:14,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:04:15,089 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:04:15,411 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-23 15:04:15,417 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-23 15:04:15,418 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-23 15:04:15,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:04:15,447 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:04:15,471 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:04:15,515 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-23 15:04:15,522 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-23 15:04:15,523 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_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-23 15:04:15,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:04:15,603 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:04:15,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15 WrapperNode [2022-11-23 15:04:15,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:04:15,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:04:15,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:04:15,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:04:15,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,716 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-11-23 15:04:15,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:04:15,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:04:15,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:04:15,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:04:15,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:04:15,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:04:15,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:04:15,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:04:15,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (1/1) ... [2022-11-23 15:04:15,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:04:15,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:04:15,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:04:15,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fe8ab3-8433-4eb0-9b42-dc0bd71c0571/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:04:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-23 15:04:15,910 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-23 15:04:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:04:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:04:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:04:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:04:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:04:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:04:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:04:15,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:04:15,918 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 15:04:16,066 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:04:16,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:04:16,744 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:04:16,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:04:16,767 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 15:04:16,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:16 BoogieIcfgContainer [2022-11-23 15:04:16,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:04:16,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:04:16,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:04:16,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:04:16,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:04:14" (1/3) ... [2022-11-23 15:04:16,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:16, skipping insertion in model container [2022-11-23 15:04:16,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:15" (2/3) ... [2022-11-23 15:04:16,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700bc1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:04:16, skipping insertion in model container [2022-11-23 15:04:16,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:04:16" (3/3) ... [2022-11-23 15:04:16,781 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-23 15:04:16,799 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:04:16,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:04:16,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-23 15:04:16,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:04:16,939 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 15:04:16,996 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:04:17,013 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-23 15:04:17,016 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-23 15:04:17,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 267 transitions, 542 flow [2022-11-23 15:04:17,150 INFO L130 PetriNetUnfolder]: 10/266 cut-off events. [2022-11-23 15:04:17,150 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 15:04:17,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 266 events. 10/266 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 535 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-11-23 15:04:17,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 21228 [2022-11-23 15:04:31,787 INFO L134 LiptonReduction]: Checked pairs total: 138050 [2022-11-23 15:04:31,787 INFO L136 LiptonReduction]: Total number of compositions: 181 [2022-11-23 15:04:31,796 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 120 transitions, 248 flow [2022-11-23 15:04:31,951 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 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 15:04:31,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:04:31,990 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;@39bbb3f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:04:31,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-23 15:04:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 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 15:04:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 15:04:32,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:32,006 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 15:04:32,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash 914, now seen corresponding path program 1 times [2022-11-23 15:04:32,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:32,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416041891] [2022-11-23 15:04:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:32,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:32,168 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 15:04:32,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:32,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416041891] [2022-11-23 15:04:32,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416041891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:32,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:32,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 15:04:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049878826] [2022-11-23 15:04:32,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:32,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:04:32,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:32,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:04:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:04:32,223 INFO L87 Difference]: Start difference. First operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:32,356 INFO L93 Difference]: Finished difference Result 2959 states and 6025 transitions. [2022-11-23 15:04:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:04:32,359 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-23 15:04:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:32,385 INFO L225 Difference]: With dead ends: 2959 [2022-11-23 15:04:32,385 INFO L226 Difference]: Without dead ends: 2959 [2022-11-23 15:04:32,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:04:32,390 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:32,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:04:32,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-11-23 15:04:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2959. [2022-11-23 15:04:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2888 states have (on average 2.086218836565097) internal successors, (6025), 2958 states have internal predecessors, (6025), 0 states have call successors, (0), 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 15:04:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 6025 transitions. [2022-11-23 15:04:32,548 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 6025 transitions. Word has length 1 [2022-11-23 15:04:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:32,549 INFO L495 AbstractCegarLoop]: Abstraction has 2959 states and 6025 transitions. [2022-11-23 15:04:32,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:32,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 6025 transitions. [2022-11-23 15:04:32,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:04:32,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:32,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:32,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:04:32,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2014241161, now seen corresponding path program 1 times [2022-11-23 15:04:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:32,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947374563] [2022-11-23 15:04:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:32,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:32,738 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 15:04:32,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:32,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947374563] [2022-11-23 15:04:32,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947374563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:32,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:32,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:04:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104693914] [2022-11-23 15:04:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:32,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:04:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:04:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:04:32,746 INFO L87 Difference]: Start difference. First operand 2959 states and 6025 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 15:04:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:32,902 INFO L93 Difference]: Finished difference Result 5453 states and 11114 transitions. [2022-11-23 15:04:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:04:32,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-23 15:04:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:32,926 INFO L225 Difference]: With dead ends: 5453 [2022-11-23 15:04:32,926 INFO L226 Difference]: Without dead ends: 5453 [2022-11-23 15:04:32,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:04:32,928 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 102 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:32,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 226 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:04:32,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-11-23 15:04:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 3017. [2022-11-23 15:04:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 2946 states have (on average 2.0848608282416836) internal successors, (6142), 3016 states have internal predecessors, (6142), 0 states have call successors, (0), 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 15:04:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 6142 transitions. [2022-11-23 15:04:33,030 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 6142 transitions. Word has length 9 [2022-11-23 15:04:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:33,031 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 6142 transitions. [2022-11-23 15:04:33,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 15:04:33,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 6142 transitions. [2022-11-23 15:04:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:04:33,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:33,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:33,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:04:33,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 253291591, now seen corresponding path program 1 times [2022-11-23 15:04:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:33,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234164538] [2022-11-23 15:04:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:33,590 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 15:04:33,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:33,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234164538] [2022-11-23 15:04:33,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234164538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:33,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:33,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:33,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620789004] [2022-11-23 15:04:33,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:33,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:33,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:33,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:33,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:33,594 INFO L87 Difference]: Start difference. First operand 3017 states and 6142 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:04:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:34,540 INFO L93 Difference]: Finished difference Result 5364 states and 10935 transitions. [2022-11-23 15:04:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-23 15:04:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:34,570 INFO L225 Difference]: With dead ends: 5364 [2022-11-23 15:04:34,570 INFO L226 Difference]: Without dead ends: 5364 [2022-11-23 15:04:34,570 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 15:04:34,572 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 153 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:34,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 91 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:04:34,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-11-23 15:04:34,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 3413. [2022-11-23 15:04:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3342 states have (on average 2.0771992818671454) internal successors, (6942), 3412 states have internal predecessors, (6942), 0 states have call successors, (0), 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 15:04:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 6942 transitions. [2022-11-23 15:04:34,768 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 6942 transitions. Word has length 10 [2022-11-23 15:04:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 6942 transitions. [2022-11-23 15:04:34,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:04:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 6942 transitions. [2022-11-23 15:04:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:04:34,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:34,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:34,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:04:34,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:34,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:34,778 INFO L85 PathProgramCache]: Analyzing trace with hash 185305687, now seen corresponding path program 1 times [2022-11-23 15:04:34,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:34,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323710065] [2022-11-23 15:04:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:34,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:35,139 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 15:04:35,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:35,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323710065] [2022-11-23 15:04:35,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323710065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:35,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:35,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943806051] [2022-11-23 15:04:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:35,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:35,147 INFO L87 Difference]: Start difference. First operand 3413 states and 6942 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:04:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:36,231 INFO L93 Difference]: Finished difference Result 5250 states and 10704 transitions. [2022-11-23 15:04:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:36,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-23 15:04:36,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:36,275 INFO L225 Difference]: With dead ends: 5250 [2022-11-23 15:04:36,275 INFO L226 Difference]: Without dead ends: 5250 [2022-11-23 15:04:36,276 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 15:04:36,280 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:36,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:04:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-11-23 15:04:36,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4040. [2022-11-23 15:04:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 3975 states have (on average 2.0649056603773586) internal successors, (8208), 4039 states have internal predecessors, (8208), 0 states have call successors, (0), 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 15:04:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 8208 transitions. [2022-11-23 15:04:36,473 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 8208 transitions. Word has length 10 [2022-11-23 15:04:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:36,473 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 8208 transitions. [2022-11-23 15:04:36,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:04:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 8208 transitions. [2022-11-23 15:04:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:04:36,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:36,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:36,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:04:36,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:36,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:36,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1131594322, now seen corresponding path program 1 times [2022-11-23 15:04:36,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:36,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342671007] [2022-11-23 15:04:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:36,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:36,762 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 15:04:36,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:36,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342671007] [2022-11-23 15:04:36,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342671007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:36,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:36,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:36,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270984152] [2022-11-23 15:04:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:36,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:36,771 INFO L87 Difference]: Start difference. First operand 4040 states and 8208 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:37,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:37,996 INFO L93 Difference]: Finished difference Result 5573 states and 11371 transitions. [2022-11-23 15:04:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:37,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 15:04:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:38,032 INFO L225 Difference]: With dead ends: 5573 [2022-11-23 15:04:38,033 INFO L226 Difference]: Without dead ends: 5562 [2022-11-23 15:04:38,033 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 15:04:38,035 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 109 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:38,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 123 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 15:04:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-11-23 15:04:38,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4371. [2022-11-23 15:04:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4312 states have (on average 2.0693413729128016) internal successors, (8923), 4370 states have internal predecessors, (8923), 0 states have call successors, (0), 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 15:04:38,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 8923 transitions. [2022-11-23 15:04:38,193 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 8923 transitions. Word has length 16 [2022-11-23 15:04:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:38,194 INFO L495 AbstractCegarLoop]: Abstraction has 4371 states and 8923 transitions. [2022-11-23 15:04:38,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 8923 transitions. [2022-11-23 15:04:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:04:38,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:38,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:04:38,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:04:38,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:38,199 INFO L85 PathProgramCache]: Analyzing trace with hash -52229361, now seen corresponding path program 1 times [2022-11-23 15:04:38,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:38,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118349975] [2022-11-23 15:04:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:38,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:38,532 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 15:04:38,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:38,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118349975] [2022-11-23 15:04:38,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118349975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:38,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:38,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:38,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633457998] [2022-11-23 15:04:38,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:38,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:38,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:38,535 INFO L87 Difference]: Start difference. First operand 4371 states and 8923 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:39,408 INFO L93 Difference]: Finished difference Result 5800 states and 11867 transitions. [2022-11-23 15:04:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 15:04:39,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:39,452 INFO L225 Difference]: With dead ends: 5800 [2022-11-23 15:04:39,452 INFO L226 Difference]: Without dead ends: 5800 [2022-11-23 15:04:39,452 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 15:04:39,453 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 132 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:39,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 116 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:04:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-11-23 15:04:39,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 4562. [2022-11-23 15:04:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 4507 states have (on average 2.0769913467938763) internal successors, (9361), 4561 states have internal predecessors, (9361), 0 states have call successors, (0), 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 15:04:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 9361 transitions. [2022-11-23 15:04:39,589 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 9361 transitions. Word has length 16 [2022-11-23 15:04:39,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:39,589 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 9361 transitions. [2022-11-23 15:04:39,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:04:39,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 9361 transitions. [2022-11-23 15:04:39,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:04:39,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:39,591 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 15:04:39,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:04:39,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash -672259527, now seen corresponding path program 1 times [2022-11-23 15:04:39,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:39,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592918723] [2022-11-23 15:04:39,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:39,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:39,980 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 15:04:39,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:39,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592918723] [2022-11-23 15:04:39,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592918723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:39,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:39,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:39,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356651857] [2022-11-23 15:04:39,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:39,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:39,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:39,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:39,982 INFO L87 Difference]: Start difference. First operand 4562 states and 9361 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 15:04:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:40,770 INFO L93 Difference]: Finished difference Result 5530 states and 11317 transitions. [2022-11-23 15:04:40,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:40,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 15:04:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:40,784 INFO L225 Difference]: With dead ends: 5530 [2022-11-23 15:04:40,784 INFO L226 Difference]: Without dead ends: 5530 [2022-11-23 15:04:40,784 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 15:04:40,785 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 124 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:40,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 108 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:04:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-11-23 15:04:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4886. [2022-11-23 15:04:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4839 states have (on average 2.06964248811738) internal successors, (10015), 4885 states have internal predecessors, (10015), 0 states have call successors, (0), 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 15:04:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 10015 transitions. [2022-11-23 15:04:40,928 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 10015 transitions. Word has length 22 [2022-11-23 15:04:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:40,929 INFO L495 AbstractCegarLoop]: Abstraction has 4886 states and 10015 transitions. [2022-11-23 15:04:40,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 15:04:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 10015 transitions. [2022-11-23 15:04:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:04:40,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:40,934 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 15:04:40,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:04:40,935 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash -828871843, now seen corresponding path program 1 times [2022-11-23 15:04:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296525897] [2022-11-23 15:04:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:40,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:41,380 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 15:04:41,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:41,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296525897] [2022-11-23 15:04:41,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296525897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:41,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:41,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:41,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567729488] [2022-11-23 15:04:41,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:41,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:41,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:41,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:41,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:41,383 INFO L87 Difference]: Start difference. First operand 4886 states and 10015 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:42,232 INFO L93 Difference]: Finished difference Result 5048 states and 10342 transitions. [2022-11-23 15:04:42,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:42,250 INFO L225 Difference]: With dead ends: 5048 [2022-11-23 15:04:42,250 INFO L226 Difference]: Without dead ends: 5048 [2022-11-23 15:04:42,251 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 15:04:42,251 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 96 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:42,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 132 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:04:42,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5048 states. [2022-11-23 15:04:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5048 to 5048. [2022-11-23 15:04:42,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5048 states, 5005 states have (on average 2.066333666333666) internal successors, (10342), 5047 states have internal predecessors, (10342), 0 states have call successors, (0), 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 15:04:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 10342 transitions. [2022-11-23 15:04:42,399 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 10342 transitions. Word has length 28 [2022-11-23 15:04:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:42,399 INFO L495 AbstractCegarLoop]: Abstraction has 5048 states and 10342 transitions. [2022-11-23 15:04:42,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 10342 transitions. [2022-11-23 15:04:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:04:42,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:42,402 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 15:04:42,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:04:42,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash 764451322, now seen corresponding path program 1 times [2022-11-23 15:04:42,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:42,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150565179] [2022-11-23 15:04:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:42,709 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 15:04:42,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:42,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150565179] [2022-11-23 15:04:42,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150565179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:42,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:42,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:04:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420495349] [2022-11-23 15:04:42,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:42,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:04:42,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:04:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:04:42,713 INFO L87 Difference]: Start difference. First operand 5048 states and 10342 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:43,577 INFO L93 Difference]: Finished difference Result 5268 states and 10786 transitions. [2022-11-23 15:04:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:04:43,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:43,590 INFO L225 Difference]: With dead ends: 5268 [2022-11-23 15:04:43,590 INFO L226 Difference]: Without dead ends: 5268 [2022-11-23 15:04:43,590 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 15:04:43,591 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 108 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:43,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 115 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:04:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2022-11-23 15:04:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2022-11-23 15:04:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5225 states have (on average 2.064306220095694) internal successors, (10786), 5267 states have internal predecessors, (10786), 0 states have call successors, (0), 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 15:04:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 10786 transitions. [2022-11-23 15:04:43,714 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 10786 transitions. Word has length 28 [2022-11-23 15:04:43,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:43,714 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 10786 transitions. [2022-11-23 15:04:43,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 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 15:04:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 10786 transitions. [2022-11-23 15:04:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:04:43,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:43,718 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] [2022-11-23 15:04:43,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:04:43,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1664622446, now seen corresponding path program 1 times [2022-11-23 15:04:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532203835] [2022-11-23 15:04:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:43,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:45,850 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 15:04:45,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:45,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532203835] [2022-11-23 15:04:45,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532203835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:45,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:45,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:04:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766007003] [2022-11-23 15:04:45,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:45,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:04:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:04:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:04:45,853 INFO L87 Difference]: Start difference. First operand 5268 states and 10786 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:04:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:04:52,227 INFO L93 Difference]: Finished difference Result 11909 states and 24450 transitions. [2022-11-23 15:04:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 15:04:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:04:52,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:04:52,261 INFO L225 Difference]: With dead ends: 11909 [2022-11-23 15:04:52,261 INFO L226 Difference]: Without dead ends: 11905 [2022-11-23 15:04:52,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2022-11-23 15:04:52,263 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 814 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 3818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:04:52,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 260 Invalid, 3818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 15:04:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2022-11-23 15:04:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 6148. [2022-11-23 15:04:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6105 states have (on average 2.095823095823096) internal successors, (12795), 6147 states have internal predecessors, (12795), 0 states have call successors, (0), 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 15:04:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 12795 transitions. [2022-11-23 15:04:52,466 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 12795 transitions. Word has length 32 [2022-11-23 15:04:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:04:52,470 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 12795 transitions. [2022-11-23 15:04:52,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:04:52,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 12795 transitions. [2022-11-23 15:04:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:04:52,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:04:52,477 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] [2022-11-23 15:04:52,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:04:52,478 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:04:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:04:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -73521212, now seen corresponding path program 1 times [2022-11-23 15:04:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:04:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707020294] [2022-11-23 15:04:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:04:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:04:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:04:54,912 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 15:04:54,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:04:54,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707020294] [2022-11-23 15:04:54,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707020294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:04:54,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:04:54,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:04:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275144144] [2022-11-23 15:04:54,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:04:54,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:04:54,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:04:54,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:04:54,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:04:54,915 INFO L87 Difference]: Start difference. First operand 6148 states and 12795 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:00,401 INFO L93 Difference]: Finished difference Result 10059 states and 20653 transitions. [2022-11-23 15:05:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:05:00,401 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:00,424 INFO L225 Difference]: With dead ends: 10059 [2022-11-23 15:05:00,425 INFO L226 Difference]: Without dead ends: 10059 [2022-11-23 15:05:00,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:05:00,426 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1048 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:00,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 940 Invalid, 3865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 15:05:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10059 states. [2022-11-23 15:05:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10059 to 6468. [2022-11-23 15:05:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6468 states, 6425 states have (on average 2.0957198443579768) internal successors, (13465), 6467 states have internal predecessors, (13465), 0 states have call successors, (0), 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 15:05:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6468 states to 6468 states and 13465 transitions. [2022-11-23 15:05:00,679 INFO L78 Accepts]: Start accepts. Automaton has 6468 states and 13465 transitions. Word has length 32 [2022-11-23 15:05:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:00,680 INFO L495 AbstractCegarLoop]: Abstraction has 6468 states and 13465 transitions. [2022-11-23 15:05:00,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6468 states and 13465 transitions. [2022-11-23 15:05:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:00,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:00,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:05:00,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:05:00,684 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:00,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 605137366, now seen corresponding path program 2 times [2022-11-23 15:05:00,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:00,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145623389] [2022-11-23 15:05:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:00,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:02,437 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 15:05:02,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:02,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145623389] [2022-11-23 15:05:02,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145623389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:02,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:02,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:05:02,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107047548] [2022-11-23 15:05:02,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:02,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:05:02,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:02,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:05:02,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:05:02,440 INFO L87 Difference]: Start difference. First operand 6468 states and 13465 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:09,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:09,074 INFO L93 Difference]: Finished difference Result 17855 states and 37315 transitions. [2022-11-23 15:05:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:05:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:09,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:09,172 INFO L225 Difference]: With dead ends: 17855 [2022-11-23 15:05:09,173 INFO L226 Difference]: Without dead ends: 17851 [2022-11-23 15:05:09,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:05:09,174 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 852 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:09,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 901 Invalid, 4663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 15:05:09,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17851 states. [2022-11-23 15:05:09,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17851 to 7545. [2022-11-23 15:05:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7545 states, 7502 states have (on average 2.1198347107438016) internal successors, (15903), 7544 states have internal predecessors, (15903), 0 states have call successors, (0), 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 15:05:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7545 states to 7545 states and 15903 transitions. [2022-11-23 15:05:09,520 INFO L78 Accepts]: Start accepts. Automaton has 7545 states and 15903 transitions. Word has length 32 [2022-11-23 15:05:09,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:09,521 INFO L495 AbstractCegarLoop]: Abstraction has 7545 states and 15903 transitions. [2022-11-23 15:05:09,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:09,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7545 states and 15903 transitions. [2022-11-23 15:05:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:09,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:09,528 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] [2022-11-23 15:05:09,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:05:09,529 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:09,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1648611750, now seen corresponding path program 2 times [2022-11-23 15:05:09,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:09,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579111434] [2022-11-23 15:05:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:09,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:11,380 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 15:05:11,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:11,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579111434] [2022-11-23 15:05:11,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579111434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:11,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:11,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:05:11,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999238203] [2022-11-23 15:05:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:11,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:05:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:11,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:05:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:05:11,382 INFO L87 Difference]: Start difference. First operand 7545 states and 15903 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:16,246 INFO L93 Difference]: Finished difference Result 12851 states and 27013 transitions. [2022-11-23 15:05:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:05:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:16,273 INFO L225 Difference]: With dead ends: 12851 [2022-11-23 15:05:16,273 INFO L226 Difference]: Without dead ends: 12851 [2022-11-23 15:05:16,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:05:16,275 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 659 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:16,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1086 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 15:05:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2022-11-23 15:05:16,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 8211. [2022-11-23 15:05:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8211 states, 8168 states have (on average 2.126958863858962) internal successors, (17373), 8210 states have internal predecessors, (17373), 0 states have call successors, (0), 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 15:05:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 17373 transitions. [2022-11-23 15:05:16,507 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 17373 transitions. Word has length 32 [2022-11-23 15:05:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:16,507 INFO L495 AbstractCegarLoop]: Abstraction has 8211 states and 17373 transitions. [2022-11-23 15:05:16,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 17373 transitions. [2022-11-23 15:05:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:16,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:16,513 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] [2022-11-23 15:05:16,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:05:16,514 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1544592462, now seen corresponding path program 3 times [2022-11-23 15:05:16,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:16,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926197695] [2022-11-23 15:05:16,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:16,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:18,261 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 15:05:18,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:18,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926197695] [2022-11-23 15:05:18,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926197695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:18,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:18,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:05:18,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95854386] [2022-11-23 15:05:18,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:18,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:05:18,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:18,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:05:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:05:18,264 INFO L87 Difference]: Start difference. First operand 8211 states and 17373 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:24,537 INFO L93 Difference]: Finished difference Result 21061 states and 44671 transitions. [2022-11-23 15:05:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:05:24,538 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:24,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:24,593 INFO L225 Difference]: With dead ends: 21061 [2022-11-23 15:05:24,593 INFO L226 Difference]: Without dead ends: 21057 [2022-11-23 15:05:24,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:05:24,595 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 961 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3585 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 3585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:24,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1026 Invalid, 4085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 3585 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:05:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21057 states. [2022-11-23 15:05:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21057 to 10281. [2022-11-23 15:05:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10281 states, 10238 states have (on average 2.164387575698379) internal successors, (22159), 10280 states have internal predecessors, (22159), 0 states have call successors, (0), 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 15:05:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10281 states to 10281 states and 22159 transitions. [2022-11-23 15:05:25,039 INFO L78 Accepts]: Start accepts. Automaton has 10281 states and 22159 transitions. Word has length 32 [2022-11-23 15:05:25,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:25,039 INFO L495 AbstractCegarLoop]: Abstraction has 10281 states and 22159 transitions. [2022-11-23 15:05:25,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 10281 states and 22159 transitions. [2022-11-23 15:05:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:25,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:25,046 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] [2022-11-23 15:05:25,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 15:05:25,047 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:25,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash 86619932, now seen corresponding path program 4 times [2022-11-23 15:05:25,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:25,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450012964] [2022-11-23 15:05:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:25,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:26,579 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 15:05:26,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:26,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450012964] [2022-11-23 15:05:26,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450012964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:26,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:26,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:05:26,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80710374] [2022-11-23 15:05:26,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:26,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:05:26,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:05:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:05:26,582 INFO L87 Difference]: Start difference. First operand 10281 states and 22159 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:37,496 INFO L93 Difference]: Finished difference Result 27175 states and 57513 transitions. [2022-11-23 15:05:37,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-23 15:05:37,497 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:37,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:37,571 INFO L225 Difference]: With dead ends: 27175 [2022-11-23 15:05:37,571 INFO L226 Difference]: Without dead ends: 27168 [2022-11-23 15:05:37,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=952, Invalid=3208, Unknown=0, NotChecked=0, Total=4160 [2022-11-23 15:05:37,573 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1209 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6126 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 6788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 6126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:37,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 1856 Invalid, 6788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 6126 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-23 15:05:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27168 states. [2022-11-23 15:05:38,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27168 to 15143. [2022-11-23 15:05:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15143 states, 15100 states have (on average 2.178741721854305) internal successors, (32899), 15142 states have internal predecessors, (32899), 0 states have call successors, (0), 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 15:05:38,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15143 states to 15143 states and 32899 transitions. [2022-11-23 15:05:38,130 INFO L78 Accepts]: Start accepts. Automaton has 15143 states and 32899 transitions. Word has length 32 [2022-11-23 15:05:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:38,131 INFO L495 AbstractCegarLoop]: Abstraction has 15143 states and 32899 transitions. [2022-11-23 15:05:38,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 15143 states and 32899 transitions. [2022-11-23 15:05:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:38,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:38,140 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] [2022-11-23 15:05:38,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:05:38,140 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:38,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash -33182028, now seen corresponding path program 3 times [2022-11-23 15:05:38,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:38,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926785287] [2022-11-23 15:05:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:38,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:40,016 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 15:05:40,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926785287] [2022-11-23 15:05:40,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926785287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:40,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:40,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:05:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468684504] [2022-11-23 15:05:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:40,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:05:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:05:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:05:40,023 INFO L87 Difference]: Start difference. First operand 15143 states and 32899 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:44,499 INFO L93 Difference]: Finished difference Result 21304 states and 45941 transitions. [2022-11-23 15:05:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:05:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:44,534 INFO L225 Difference]: With dead ends: 21304 [2022-11-23 15:05:44,534 INFO L226 Difference]: Without dead ends: 21304 [2022-11-23 15:05:44,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:05:44,535 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 634 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:44,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1284 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:05:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2022-11-23 15:05:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 16478. [2022-11-23 15:05:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16435 states have (on average 2.177608761788865) internal successors, (35789), 16477 states have internal predecessors, (35789), 0 states have call successors, (0), 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 15:05:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 35789 transitions. [2022-11-23 15:05:45,068 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 35789 transitions. Word has length 32 [2022-11-23 15:05:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:45,069 INFO L495 AbstractCegarLoop]: Abstraction has 16478 states and 35789 transitions. [2022-11-23 15:05:45,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 35789 transitions. [2022-11-23 15:05:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:45,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:45,076 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] [2022-11-23 15:05:45,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 15:05:45,076 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 92417422, now seen corresponding path program 4 times [2022-11-23 15:05:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:45,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658461531] [2022-11-23 15:05:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:45,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:47,245 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 15:05:47,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:47,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658461531] [2022-11-23 15:05:47,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658461531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:47,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:47,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:05:47,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021973411] [2022-11-23 15:05:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:47,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:05:47,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:47,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:05:47,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:05:47,248 INFO L87 Difference]: Start difference. First operand 16478 states and 35789 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:05:53,832 INFO L93 Difference]: Finished difference Result 19814 states and 42075 transitions. [2022-11-23 15:05:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:05:53,833 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:05:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:05:53,869 INFO L225 Difference]: With dead ends: 19814 [2022-11-23 15:05:53,869 INFO L226 Difference]: Without dead ends: 19814 [2022-11-23 15:05:53,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:05:53,871 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1032 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 4802 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:05:53,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1803 Invalid, 4846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 4802 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 15:05:53,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19814 states. [2022-11-23 15:05:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19814 to 16458. [2022-11-23 15:05:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16458 states, 16415 states have (on average 2.1761194029850746) internal successors, (35721), 16457 states have internal predecessors, (35721), 0 states have call successors, (0), 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 15:05:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16458 states to 16458 states and 35721 transitions. [2022-11-23 15:05:54,251 INFO L78 Accepts]: Start accepts. Automaton has 16458 states and 35721 transitions. Word has length 32 [2022-11-23 15:05:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:05:54,251 INFO L495 AbstractCegarLoop]: Abstraction has 16458 states and 35721 transitions. [2022-11-23 15:05:54,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:05:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16458 states and 35721 transitions. [2022-11-23 15:05:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:05:54,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:05:54,258 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] [2022-11-23 15:05:54,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 15:05:54,259 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:05:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:05:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash 407904112, now seen corresponding path program 5 times [2022-11-23 15:05:54,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:05:54,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482477786] [2022-11-23 15:05:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:05:54,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:05:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:05:56,255 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 15:05:56,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:05:56,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482477786] [2022-11-23 15:05:56,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482477786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:05:56,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:05:56,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:05:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130022347] [2022-11-23 15:05:56,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:05:56,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:05:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:05:56,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:05:56,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:05:56,257 INFO L87 Difference]: Start difference. First operand 16458 states and 35721 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:02,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:02,144 INFO L93 Difference]: Finished difference Result 19876 states and 42167 transitions. [2022-11-23 15:06:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:06:02,147 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:02,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:02,265 INFO L225 Difference]: With dead ends: 19876 [2022-11-23 15:06:02,265 INFO L226 Difference]: Without dead ends: 19876 [2022-11-23 15:06:02,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:06:02,266 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1013 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 4263 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:02,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1687 Invalid, 4315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4263 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 15:06:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-11-23 15:06:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 16446. [2022-11-23 15:06:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16446 states, 16403 states have (on average 2.1752728159483024) internal successors, (35681), 16445 states have internal predecessors, (35681), 0 states have call successors, (0), 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 15:06:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16446 states to 16446 states and 35681 transitions. [2022-11-23 15:06:02,593 INFO L78 Accepts]: Start accepts. Automaton has 16446 states and 35681 transitions. Word has length 32 [2022-11-23 15:06:02,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:02,593 INFO L495 AbstractCegarLoop]: Abstraction has 16446 states and 35681 transitions. [2022-11-23 15:06:02,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:02,593 INFO L276 IsEmpty]: Start isEmpty. Operand 16446 states and 35681 transitions. [2022-11-23 15:06:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:02,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:02,599 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] [2022-11-23 15:06:02,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 15:06:02,599 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:02,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:02,601 INFO L85 PathProgramCache]: Analyzing trace with hash -37169906, now seen corresponding path program 6 times [2022-11-23 15:06:02,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:02,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445000719] [2022-11-23 15:06:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:02,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:04,475 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 15:06:04,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:04,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445000719] [2022-11-23 15:06:04,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445000719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:04,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:04,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:06:04,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220591197] [2022-11-23 15:06:04,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:04,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:06:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:04,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:06:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:06:04,479 INFO L87 Difference]: Start difference. First operand 16446 states and 35681 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:09,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:09,330 INFO L93 Difference]: Finished difference Result 19926 states and 42251 transitions. [2022-11-23 15:06:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:06:09,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:09,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:09,367 INFO L225 Difference]: With dead ends: 19926 [2022-11-23 15:06:09,367 INFO L226 Difference]: Without dead ends: 19926 [2022-11-23 15:06:09,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:06:09,368 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 850 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 3386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:09,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1791 Invalid, 3386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 15:06:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-11-23 15:06:09,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 16151. [2022-11-23 15:06:09,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16151 states, 16108 states have (on average 2.1753166128631736) internal successors, (35040), 16150 states have internal predecessors, (35040), 0 states have call successors, (0), 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 15:06:09,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16151 states to 16151 states and 35040 transitions. [2022-11-23 15:06:09,661 INFO L78 Accepts]: Start accepts. Automaton has 16151 states and 35040 transitions. Word has length 32 [2022-11-23 15:06:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:09,662 INFO L495 AbstractCegarLoop]: Abstraction has 16151 states and 35040 transitions. [2022-11-23 15:06:09,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 16151 states and 35040 transitions. [2022-11-23 15:06:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:09,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:09,669 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] [2022-11-23 15:06:09,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 15:06:09,670 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1512477412, now seen corresponding path program 5 times [2022-11-23 15:06:09,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:09,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79843863] [2022-11-23 15:06:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:09,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:11,022 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 15:06:11,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:11,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79843863] [2022-11-23 15:06:11,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79843863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:11,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:11,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:06:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318236204] [2022-11-23 15:06:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:11,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:06:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:06:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:06:11,024 INFO L87 Difference]: Start difference. First operand 16151 states and 35040 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:20,884 INFO L93 Difference]: Finished difference Result 36206 states and 77963 transitions. [2022-11-23 15:06:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 15:06:20,886 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:20,952 INFO L225 Difference]: With dead ends: 36206 [2022-11-23 15:06:20,952 INFO L226 Difference]: Without dead ends: 36199 [2022-11-23 15:06:20,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=741, Invalid=2229, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 15:06:20,953 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1006 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 6256 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 6712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 6256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:20,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1539 Invalid, 6712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 6256 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-23 15:06:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36199 states. [2022-11-23 15:06:21,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36199 to 21744. [2022-11-23 15:06:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21744 states, 21701 states have (on average 2.199483894751394) internal successors, (47731), 21743 states have internal predecessors, (47731), 0 states have call successors, (0), 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 15:06:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21744 states to 21744 states and 47731 transitions. [2022-11-23 15:06:21,426 INFO L78 Accepts]: Start accepts. Automaton has 21744 states and 47731 transitions. Word has length 32 [2022-11-23 15:06:21,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:21,426 INFO L495 AbstractCegarLoop]: Abstraction has 21744 states and 47731 transitions. [2022-11-23 15:06:21,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 21744 states and 47731 transitions. [2022-11-23 15:06:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:21,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:21,431 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] [2022-11-23 15:06:21,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 15:06:21,432 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:21,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1673710716, now seen corresponding path program 6 times [2022-11-23 15:06:21,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:21,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177547515] [2022-11-23 15:06:21,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:21,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:22,845 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 15:06:22,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:22,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177547515] [2022-11-23 15:06:22,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177547515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:22,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:22,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:06:22,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796955103] [2022-11-23 15:06:22,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:22,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:06:22,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:22,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:06:22,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:06:22,848 INFO L87 Difference]: Start difference. First operand 21744 states and 47731 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:28,663 INFO L93 Difference]: Finished difference Result 41535 states and 90790 transitions. [2022-11-23 15:06:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-23 15:06:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:28,726 INFO L225 Difference]: With dead ends: 41535 [2022-11-23 15:06:28,727 INFO L226 Difference]: Without dead ends: 41531 [2022-11-23 15:06:28,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=420, Invalid=986, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 15:06:28,728 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 865 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 4332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:28,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 682 Invalid, 4332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:06:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41531 states. [2022-11-23 15:06:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41531 to 22630. [2022-11-23 15:06:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22630 states, 22587 states have (on average 2.204011156860141) internal successors, (49782), 22629 states have internal predecessors, (49782), 0 states have call successors, (0), 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 15:06:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22630 states to 22630 states and 49782 transitions. [2022-11-23 15:06:29,146 INFO L78 Accepts]: Start accepts. Automaton has 22630 states and 49782 transitions. Word has length 32 [2022-11-23 15:06:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:29,146 INFO L495 AbstractCegarLoop]: Abstraction has 22630 states and 49782 transitions. [2022-11-23 15:06:29,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 22630 states and 49782 transitions. [2022-11-23 15:06:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:29,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:29,154 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] [2022-11-23 15:06:29,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 15:06:29,154 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:29,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1888297418, now seen corresponding path program 7 times [2022-11-23 15:06:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:29,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238452100] [2022-11-23 15:06:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:29,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:30,564 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 15:06:30,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:30,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238452100] [2022-11-23 15:06:30,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238452100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:30,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:30,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:06:30,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139021291] [2022-11-23 15:06:30,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:30,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:06:30,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:30,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:06:30,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:06:30,567 INFO L87 Difference]: Start difference. First operand 22630 states and 49782 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:36,996 INFO L93 Difference]: Finished difference Result 43317 states and 94895 transitions. [2022-11-23 15:06:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-23 15:06:36,996 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:36,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:37,083 INFO L225 Difference]: With dead ends: 43317 [2022-11-23 15:06:37,083 INFO L226 Difference]: Without dead ends: 43313 [2022-11-23 15:06:37,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=518, Invalid=1204, Unknown=0, NotChecked=0, Total=1722 [2022-11-23 15:06:37,085 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 865 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4303 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 4699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 4303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:37,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 634 Invalid, 4699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 4303 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:06:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43313 states. [2022-11-23 15:06:37,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43313 to 22436. [2022-11-23 15:06:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22436 states, 22393 states have (on average 2.2044835439646318) internal successors, (49365), 22435 states have internal predecessors, (49365), 0 states have call successors, (0), 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 15:06:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22436 states to 22436 states and 49365 transitions. [2022-11-23 15:06:37,784 INFO L78 Accepts]: Start accepts. Automaton has 22436 states and 49365 transitions. Word has length 32 [2022-11-23 15:06:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:37,784 INFO L495 AbstractCegarLoop]: Abstraction has 22436 states and 49365 transitions. [2022-11-23 15:06:37,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 22436 states and 49365 transitions. [2022-11-23 15:06:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:37,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:37,792 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] [2022-11-23 15:06:37,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 15:06:37,792 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash 152920762, now seen corresponding path program 7 times [2022-11-23 15:06:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:37,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594589519] [2022-11-23 15:06:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:39,549 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 15:06:39,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:39,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594589519] [2022-11-23 15:06:39,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594589519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:39,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:39,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:06:39,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497255494] [2022-11-23 15:06:39,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:39,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:06:39,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:06:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:06:39,551 INFO L87 Difference]: Start difference. First operand 22436 states and 49365 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:45,472 INFO L93 Difference]: Finished difference Result 30642 states and 66599 transitions. [2022-11-23 15:06:45,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:06:45,472 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:45,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:45,527 INFO L225 Difference]: With dead ends: 30642 [2022-11-23 15:06:45,527 INFO L226 Difference]: Without dead ends: 30642 [2022-11-23 15:06:45,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:06:45,528 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1015 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 5309 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 5309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:45,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 1180 Invalid, 5399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 5309 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-23 15:06:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30642 states. [2022-11-23 15:06:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30642 to 22399. [2022-11-23 15:06:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22399 states, 22356 states have (on average 2.204687779567007) internal successors, (49288), 22398 states have internal predecessors, (49288), 0 states have call successors, (0), 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 15:06:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22399 states to 22399 states and 49288 transitions. [2022-11-23 15:06:45,926 INFO L78 Accepts]: Start accepts. Automaton has 22399 states and 49288 transitions. Word has length 32 [2022-11-23 15:06:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:45,926 INFO L495 AbstractCegarLoop]: Abstraction has 22399 states and 49288 transitions. [2022-11-23 15:06:45,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 22399 states and 49288 transitions. [2022-11-23 15:06:45,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:45,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:45,930 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] [2022-11-23 15:06:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 15:06:45,931 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1772606476, now seen corresponding path program 8 times [2022-11-23 15:06:45,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:45,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454498329] [2022-11-23 15:06:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:06:47,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:47,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454498329] [2022-11-23 15:06:47,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454498329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:47,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:47,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:06:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950901393] [2022-11-23 15:06:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:47,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:06:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:47,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:06:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:06:47,208 INFO L87 Difference]: Start difference. First operand 22399 states and 49288 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:53,204 INFO L93 Difference]: Finished difference Result 31413 states and 67805 transitions. [2022-11-23 15:06:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:06:53,204 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:53,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:53,263 INFO L225 Difference]: With dead ends: 31413 [2022-11-23 15:06:53,263 INFO L226 Difference]: Without dead ends: 31409 [2022-11-23 15:06:53,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=345, Invalid=915, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:06:53,264 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 781 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 4778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:53,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 953 Invalid, 4778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 4424 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 15:06:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31409 states. [2022-11-23 15:06:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31409 to 22686. [2022-11-23 15:06:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22686 states, 22643 states have (on average 2.2040807313518527) internal successors, (49907), 22685 states have internal predecessors, (49907), 0 states have call successors, (0), 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 15:06:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22686 states to 22686 states and 49907 transitions. [2022-11-23 15:06:53,814 INFO L78 Accepts]: Start accepts. Automaton has 22686 states and 49907 transitions. Word has length 32 [2022-11-23 15:06:53,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:06:53,814 INFO L495 AbstractCegarLoop]: Abstraction has 22686 states and 49907 transitions. [2022-11-23 15:06:53,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 22686 states and 49907 transitions. [2022-11-23 15:06:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:06:53,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:06:53,818 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] [2022-11-23 15:06:53,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 15:06:53,818 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:06:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:06:53,819 INFO L85 PathProgramCache]: Analyzing trace with hash 268611704, now seen corresponding path program 8 times [2022-11-23 15:06:53,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:06:53,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593373503] [2022-11-23 15:06:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:06:53,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:06:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:06:54,925 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 15:06:54,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:06:54,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593373503] [2022-11-23 15:06:54,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593373503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:06:54,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:06:54,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:06:54,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501653751] [2022-11-23 15:06:54,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:06:54,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:06:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:06:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:06:54,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:06:54,927 INFO L87 Difference]: Start difference. First operand 22686 states and 49907 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:06:59,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:06:59,735 INFO L93 Difference]: Finished difference Result 25965 states and 56686 transitions. [2022-11-23 15:06:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 15:06:59,736 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:06:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:06:59,791 INFO L225 Difference]: With dead ends: 25965 [2022-11-23 15:06:59,791 INFO L226 Difference]: Without dead ends: 25965 [2022-11-23 15:06:59,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:06:59,792 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 687 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:06:59,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1215 Invalid, 4997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 15:06:59,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25965 states. [2022-11-23 15:07:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25965 to 22810. [2022-11-23 15:07:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22810 states, 22767 states have (on average 2.204067290376422) internal successors, (50180), 22809 states have internal predecessors, (50180), 0 states have call successors, (0), 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 15:07:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22810 states to 22810 states and 50180 transitions. [2022-11-23 15:07:00,291 INFO L78 Accepts]: Start accepts. Automaton has 22810 states and 50180 transitions. Word has length 32 [2022-11-23 15:07:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:00,291 INFO L495 AbstractCegarLoop]: Abstraction has 22810 states and 50180 transitions. [2022-11-23 15:07:00,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 22810 states and 50180 transitions. [2022-11-23 15:07:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:00,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:00,296 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] [2022-11-23 15:07:00,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 15:07:00,296 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash 372630992, now seen corresponding path program 9 times [2022-11-23 15:07:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:00,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154947825] [2022-11-23 15:07:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:00,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:01,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:01,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154947825] [2022-11-23 15:07:01,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154947825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:01,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:01,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:07:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287833551] [2022-11-23 15:07:01,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:01,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:07:01,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:07:01,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:07:01,454 INFO L87 Difference]: Start difference. First operand 22810 states and 50180 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:07,228 INFO L93 Difference]: Finished difference Result 32153 states and 69382 transitions. [2022-11-23 15:07:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 15:07:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:07,283 INFO L225 Difference]: With dead ends: 32153 [2022-11-23 15:07:07,284 INFO L226 Difference]: Without dead ends: 32149 [2022-11-23 15:07:07,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2022-11-23 15:07:07,284 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 882 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 4154 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 4154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:07,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1158 Invalid, 4636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 4154 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:07:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32149 states. [2022-11-23 15:07:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32149 to 22809. [2022-11-23 15:07:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22809 states, 22766 states have (on average 2.2038566283053678) internal successors, (50173), 22808 states have internal predecessors, (50173), 0 states have call successors, (0), 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 15:07:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22809 states to 22809 states and 50173 transitions. [2022-11-23 15:07:07,690 INFO L78 Accepts]: Start accepts. Automaton has 22809 states and 50173 transitions. Word has length 32 [2022-11-23 15:07:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:07,690 INFO L495 AbstractCegarLoop]: Abstraction has 22809 states and 50173 transitions. [2022-11-23 15:07:07,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 22809 states and 50173 transitions. [2022-11-23 15:07:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:07,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:07,695 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] [2022-11-23 15:07:07,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 15:07:07,695 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:07,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2003843386, now seen corresponding path program 10 times [2022-11-23 15:07:07,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:07,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356123120] [2022-11-23 15:07:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:08,690 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 15:07:08,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:08,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356123120] [2022-11-23 15:07:08,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356123120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:08,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:08,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746103827] [2022-11-23 15:07:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:08,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:08,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:08,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:08,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:08,692 INFO L87 Difference]: Start difference. First operand 22809 states and 50173 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:16,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:16,037 INFO L93 Difference]: Finished difference Result 34618 states and 74300 transitions. [2022-11-23 15:07:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-23 15:07:16,038 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:16,108 INFO L225 Difference]: With dead ends: 34618 [2022-11-23 15:07:16,108 INFO L226 Difference]: Without dead ends: 34611 [2022-11-23 15:07:16,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=511, Invalid=1745, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 15:07:16,110 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1356 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 4753 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 5409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 4753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:16,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 2040 Invalid, 5409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 4753 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 15:07:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34611 states. [2022-11-23 15:07:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34611 to 23904. [2022-11-23 15:07:16,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23904 states, 23861 states have (on average 2.204266376094883) internal successors, (52596), 23903 states have internal predecessors, (52596), 0 states have call successors, (0), 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 15:07:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23904 states to 23904 states and 52596 transitions. [2022-11-23 15:07:16,640 INFO L78 Accepts]: Start accepts. Automaton has 23904 states and 52596 transitions. Word has length 32 [2022-11-23 15:07:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:16,641 INFO L495 AbstractCegarLoop]: Abstraction has 23904 states and 52596 transitions. [2022-11-23 15:07:16,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 23904 states and 52596 transitions. [2022-11-23 15:07:16,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:16,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:16,646 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] [2022-11-23 15:07:16,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 15:07:16,647 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:16,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1884041426, now seen corresponding path program 9 times [2022-11-23 15:07:16,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:16,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189800161] [2022-11-23 15:07:16,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:16,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:18,194 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 15:07:18,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:18,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189800161] [2022-11-23 15:07:18,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189800161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:18,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:18,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903483841] [2022-11-23 15:07:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:18,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:18,196 INFO L87 Difference]: Start difference. First operand 23904 states and 52596 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:25,565 INFO L93 Difference]: Finished difference Result 30088 states and 65042 transitions. [2022-11-23 15:07:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:07:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:25,629 INFO L225 Difference]: With dead ends: 30088 [2022-11-23 15:07:25,630 INFO L226 Difference]: Without dead ends: 30088 [2022-11-23 15:07:25,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:07:25,631 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1030 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 5709 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 5760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 5709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:25,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 2320 Invalid, 5760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 5709 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-23 15:07:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30088 states. [2022-11-23 15:07:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30088 to 23704. [2022-11-23 15:07:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23704 states, 23661 states have (on average 2.203964329487342) internal successors, (52148), 23703 states have internal predecessors, (52148), 0 states have call successors, (0), 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 15:07:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23704 states to 23704 states and 52148 transitions. [2022-11-23 15:07:26,258 INFO L78 Accepts]: Start accepts. Automaton has 23704 states and 52148 transitions. Word has length 32 [2022-11-23 15:07:26,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:26,258 INFO L495 AbstractCegarLoop]: Abstraction has 23704 states and 52148 transitions. [2022-11-23 15:07:26,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 23704 states and 52148 transitions. [2022-11-23 15:07:26,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:26,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:26,267 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] [2022-11-23 15:07:26,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 15:07:26,268 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:26,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2009640876, now seen corresponding path program 10 times [2022-11-23 15:07:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:26,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205671249] [2022-11-23 15:07:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:27,625 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 15:07:27,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:27,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205671249] [2022-11-23 15:07:27,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205671249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:27,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:27,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:27,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101786427] [2022-11-23 15:07:27,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:27,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:27,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:27,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:27,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:27,627 INFO L87 Difference]: Start difference. First operand 23704 states and 52148 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:34,965 INFO L93 Difference]: Finished difference Result 29556 states and 64030 transitions. [2022-11-23 15:07:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:07:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:35,021 INFO L225 Difference]: With dead ends: 29556 [2022-11-23 15:07:35,021 INFO L226 Difference]: Without dead ends: 29556 [2022-11-23 15:07:35,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:07:35,022 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1022 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 6058 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 6096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:35,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1997 Invalid, 6096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6058 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:07:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29556 states. [2022-11-23 15:07:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29556 to 23701. [2022-11-23 15:07:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23701 states, 23658 states have (on average 2.2039056555921888) internal successors, (52140), 23700 states have internal predecessors, (52140), 0 states have call successors, (0), 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 15:07:35,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23701 states to 23701 states and 52140 transitions. [2022-11-23 15:07:35,436 INFO L78 Accepts]: Start accepts. Automaton has 23701 states and 52140 transitions. Word has length 32 [2022-11-23 15:07:35,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:35,436 INFO L495 AbstractCegarLoop]: Abstraction has 23701 states and 52140 transitions. [2022-11-23 15:07:35,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:35,436 INFO L276 IsEmpty]: Start isEmpty. Operand 23701 states and 52140 transitions. [2022-11-23 15:07:35,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:35,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:35,441 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] [2022-11-23 15:07:35,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 15:07:35,441 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1969839730, now seen corresponding path program 11 times [2022-11-23 15:07:35,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:35,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178403256] [2022-11-23 15:07:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:35,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:37,082 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 15:07:37,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:37,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178403256] [2022-11-23 15:07:37,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178403256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:37,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:37,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679958912] [2022-11-23 15:07:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:37,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:37,085 INFO L87 Difference]: Start difference. First operand 23701 states and 52140 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:42,271 INFO L93 Difference]: Finished difference Result 29586 states and 64086 transitions. [2022-11-23 15:07:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:07:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:42,328 INFO L225 Difference]: With dead ends: 29586 [2022-11-23 15:07:42,328 INFO L226 Difference]: Without dead ends: 29586 [2022-11-23 15:07:42,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:07:42,329 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 805 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:42,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2090 Invalid, 4321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4273 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 15:07:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29586 states. [2022-11-23 15:07:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29586 to 23698. [2022-11-23 15:07:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23698 states, 23655 states have (on average 2.203846966814627) internal successors, (52132), 23697 states have internal predecessors, (52132), 0 states have call successors, (0), 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 15:07:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23698 states to 23698 states and 52132 transitions. [2022-11-23 15:07:42,824 INFO L78 Accepts]: Start accepts. Automaton has 23698 states and 52132 transitions. Word has length 32 [2022-11-23 15:07:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:42,824 INFO L495 AbstractCegarLoop]: Abstraction has 23698 states and 52132 transitions. [2022-11-23 15:07:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 23698 states and 52132 transitions. [2022-11-23 15:07:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:42,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:42,834 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] [2022-11-23 15:07:42,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 15:07:42,834 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:42,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1880053548, now seen corresponding path program 12 times [2022-11-23 15:07:42,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:42,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640963044] [2022-11-23 15:07:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:44,559 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 15:07:44,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640963044] [2022-11-23 15:07:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640963044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:44,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:44,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208677374] [2022-11-23 15:07:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:44,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:44,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:44,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:44,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:44,560 INFO L87 Difference]: Start difference. First operand 23698 states and 52132 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:49,850 INFO L93 Difference]: Finished difference Result 29593 states and 64098 transitions. [2022-11-23 15:07:49,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:07:49,851 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:49,925 INFO L225 Difference]: With dead ends: 29593 [2022-11-23 15:07:49,926 INFO L226 Difference]: Without dead ends: 29593 [2022-11-23 15:07:49,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:07:49,927 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 757 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 4267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:49,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2087 Invalid, 4267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4221 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:07:49,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29593 states. [2022-11-23 15:07:50,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29593 to 23485. [2022-11-23 15:07:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23485 states, 23442 states have (on average 2.204419418138384) internal successors, (51676), 23484 states have internal predecessors, (51676), 0 states have call successors, (0), 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 15:07:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23485 states to 23485 states and 51676 transitions. [2022-11-23 15:07:50,480 INFO L78 Accepts]: Start accepts. Automaton has 23485 states and 51676 transitions. Word has length 32 [2022-11-23 15:07:50,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:50,481 INFO L495 AbstractCegarLoop]: Abstraction has 23485 states and 51676 transitions. [2022-11-23 15:07:50,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 23485 states and 51676 transitions. [2022-11-23 15:07:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:50,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:50,487 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] [2022-11-23 15:07:50,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 15:07:50,488 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:50,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash -865266430, now seen corresponding path program 11 times [2022-11-23 15:07:50,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:50,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718170562] [2022-11-23 15:07:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:50,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:51,632 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 15:07:51,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:51,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718170562] [2022-11-23 15:07:51,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718170562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:51,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:51,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:07:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216590808] [2022-11-23 15:07:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:51,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:07:51,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:51,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:07:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:07:51,634 INFO L87 Difference]: Start difference. First operand 23485 states and 51676 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:59,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:59,333 INFO L93 Difference]: Finished difference Result 33278 states and 71714 transitions. [2022-11-23 15:07:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-23 15:07:59,334 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:07:59,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:59,391 INFO L225 Difference]: With dead ends: 33278 [2022-11-23 15:07:59,391 INFO L226 Difference]: Without dead ends: 33271 [2022-11-23 15:07:59,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=506, Invalid=1656, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 15:07:59,392 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1045 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 6752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:59,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1652 Invalid, 6752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 6304 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 15:07:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33271 states. [2022-11-23 15:07:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33271 to 23499. [2022-11-23 15:07:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23499 states, 23456 states have (on average 2.204254774897681) internal successors, (51703), 23498 states have internal predecessors, (51703), 0 states have call successors, (0), 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 15:07:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23499 states to 23499 states and 51703 transitions. [2022-11-23 15:07:59,810 INFO L78 Accepts]: Start accepts. Automaton has 23499 states and 51703 transitions. Word has length 32 [2022-11-23 15:07:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:59,810 INFO L495 AbstractCegarLoop]: Abstraction has 23499 states and 51703 transitions. [2022-11-23 15:07:59,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:07:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 23499 states and 51703 transitions. [2022-11-23 15:07:59,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:07:59,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:59,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:59,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 15:07:59,817 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:07:59,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:59,818 INFO L85 PathProgramCache]: Analyzing trace with hash -985068390, now seen corresponding path program 13 times [2022-11-23 15:07:59,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:59,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255309601] [2022-11-23 15:07:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:01,808 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 15:08:01,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:01,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255309601] [2022-11-23 15:08:01,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255309601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:01,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:01,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241130272] [2022-11-23 15:08:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:01,810 INFO L87 Difference]: Start difference. First operand 23499 states and 51703 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:08,150 INFO L93 Difference]: Finished difference Result 29402 states and 63794 transitions. [2022-11-23 15:08:08,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:08:08,151 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:08,205 INFO L225 Difference]: With dead ends: 29402 [2022-11-23 15:08:08,205 INFO L226 Difference]: Without dead ends: 29402 [2022-11-23 15:08:08,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:08:08,206 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 942 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 5165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:08,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1873 Invalid, 5165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:08:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29402 states. [2022-11-23 15:08:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29402 to 23490. [2022-11-23 15:08:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23490 states, 23447 states have (on average 2.204290527572824) internal successors, (51684), 23489 states have internal predecessors, (51684), 0 states have call successors, (0), 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 15:08:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23490 states to 23490 states and 51684 transitions. [2022-11-23 15:08:08,590 INFO L78 Accepts]: Start accepts. Automaton has 23490 states and 51684 transitions. Word has length 32 [2022-11-23 15:08:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:08,590 INFO L495 AbstractCegarLoop]: Abstraction has 23490 states and 51684 transitions. [2022-11-23 15:08:08,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 23490 states and 51684 transitions. [2022-11-23 15:08:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:08,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:08,595 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] [2022-11-23 15:08:08,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 15:08:08,595 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:08,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:08,596 INFO L85 PathProgramCache]: Analyzing trace with hash 379203762, now seen corresponding path program 12 times [2022-11-23 15:08:08,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:08,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475085966] [2022-11-23 15:08:08,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:08,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:09,684 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 15:08:09,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:09,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475085966] [2022-11-23 15:08:09,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475085966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:09,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:09,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:08:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144393821] [2022-11-23 15:08:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:09,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:08:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:09,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:08:09,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:08:09,686 INFO L87 Difference]: Start difference. First operand 23490 states and 51684 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:14,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:14,968 INFO L93 Difference]: Finished difference Result 32050 states and 69215 transitions. [2022-11-23 15:08:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:08:14,969 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:15,032 INFO L225 Difference]: With dead ends: 32050 [2022-11-23 15:08:15,032 INFO L226 Difference]: Without dead ends: 32046 [2022-11-23 15:08:15,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:08:15,033 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 999 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 3685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:15,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1097 Invalid, 3685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 15:08:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2022-11-23 15:08:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 23562. [2022-11-23 15:08:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23562 states, 23519 states have (on average 2.2037926782601303) internal successors, (51831), 23561 states have internal predecessors, (51831), 0 states have call successors, (0), 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 15:08:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23562 states to 23562 states and 51831 transitions. [2022-11-23 15:08:15,496 INFO L78 Accepts]: Start accepts. Automaton has 23562 states and 51831 transitions. Word has length 32 [2022-11-23 15:08:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:15,497 INFO L495 AbstractCegarLoop]: Abstraction has 23562 states and 51831 transitions. [2022-11-23 15:08:15,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 23562 states and 51831 transitions. [2022-11-23 15:08:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:15,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:15,501 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] [2022-11-23 15:08:15,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-23 15:08:15,502 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2010416156, now seen corresponding path program 13 times [2022-11-23 15:08:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:15,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346396662] [2022-11-23 15:08:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:15,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:16,572 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 15:08:16,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346396662] [2022-11-23 15:08:16,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346396662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:16,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:16,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:16,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386343354] [2022-11-23 15:08:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:16,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:16,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:16,574 INFO L87 Difference]: Start difference. First operand 23562 states and 51831 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:25,028 INFO L93 Difference]: Finished difference Result 35254 states and 75709 transitions. [2022-11-23 15:08:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-23 15:08:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:25,104 INFO L225 Difference]: With dead ends: 35254 [2022-11-23 15:08:25,104 INFO L226 Difference]: Without dead ends: 35247 [2022-11-23 15:08:25,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=595, Invalid=2057, Unknown=0, NotChecked=0, Total=2652 [2022-11-23 15:08:25,105 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1139 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 6239 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 6713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 6239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:25,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 2185 Invalid, 6713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 6239 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-23 15:08:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35247 states. [2022-11-23 15:08:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35247 to 24337. [2022-11-23 15:08:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24337 states, 24294 states have (on average 2.20420680003293) internal successors, (53549), 24336 states have internal predecessors, (53549), 0 states have call successors, (0), 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 15:08:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24337 states to 24337 states and 53549 transitions. [2022-11-23 15:08:25,639 INFO L78 Accepts]: Start accepts. Automaton has 24337 states and 53549 transitions. Word has length 32 [2022-11-23 15:08:25,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:25,639 INFO L495 AbstractCegarLoop]: Abstraction has 24337 states and 53549 transitions. [2022-11-23 15:08:25,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 24337 states and 53549 transitions. [2022-11-23 15:08:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:25,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:25,644 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] [2022-11-23 15:08:25,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-23 15:08:25,644 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1890614196, now seen corresponding path program 14 times [2022-11-23 15:08:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:25,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135648881] [2022-11-23 15:08:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:27,708 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 15:08:27,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:27,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135648881] [2022-11-23 15:08:27,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135648881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:27,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:27,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:27,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935490026] [2022-11-23 15:08:27,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:27,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:27,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:27,710 INFO L87 Difference]: Start difference. First operand 24337 states and 53549 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:35,260 INFO L93 Difference]: Finished difference Result 30724 states and 66451 transitions. [2022-11-23 15:08:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:08:35,267 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:35,326 INFO L225 Difference]: With dead ends: 30724 [2022-11-23 15:08:35,326 INFO L226 Difference]: Without dead ends: 30724 [2022-11-23 15:08:35,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:08:35,327 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1126 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 5828 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 5881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 5828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:35,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 2246 Invalid, 5881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 5828 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:08:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30724 states. [2022-11-23 15:08:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30724 to 24030. [2022-11-23 15:08:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24030 states, 23987 states have (on average 2.2037353566515194) internal successors, (52861), 24029 states have internal predecessors, (52861), 0 states have call successors, (0), 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 15:08:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24030 states to 24030 states and 52861 transitions. [2022-11-23 15:08:35,957 INFO L78 Accepts]: Start accepts. Automaton has 24030 states and 52861 transitions. Word has length 32 [2022-11-23 15:08:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:35,957 INFO L495 AbstractCegarLoop]: Abstraction has 24030 states and 52861 transitions. [2022-11-23 15:08:35,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 24030 states and 52861 transitions. [2022-11-23 15:08:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:35,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:35,964 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] [2022-11-23 15:08:35,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-23 15:08:35,964 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:35,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2016213646, now seen corresponding path program 15 times [2022-11-23 15:08:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:35,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299333622] [2022-11-23 15:08:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:37,465 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 15:08:37,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:37,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299333622] [2022-11-23 15:08:37,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299333622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:37,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:37,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:37,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799448297] [2022-11-23 15:08:37,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:37,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:37,468 INFO L87 Difference]: Start difference. First operand 24030 states and 52861 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:44,588 INFO L93 Difference]: Finished difference Result 30192 states and 65439 transitions. [2022-11-23 15:08:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:08:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:44,648 INFO L225 Difference]: With dead ends: 30192 [2022-11-23 15:08:44,648 INFO L226 Difference]: Without dead ends: 30192 [2022-11-23 15:08:44,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:08:44,649 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 899 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 6116 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 6154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:44,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 2149 Invalid, 6154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6116 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 15:08:44,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30192 states. [2022-11-23 15:08:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30192 to 24021. [2022-11-23 15:08:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24021 states, 23978 states have (on average 2.203478188339311) internal successors, (52835), 24020 states have internal predecessors, (52835), 0 states have call successors, (0), 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 15:08:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24021 states to 24021 states and 52835 transitions. [2022-11-23 15:08:45,083 INFO L78 Accepts]: Start accepts. Automaton has 24021 states and 52835 transitions. Word has length 32 [2022-11-23 15:08:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:45,084 INFO L495 AbstractCegarLoop]: Abstraction has 24021 states and 52835 transitions. [2022-11-23 15:08:45,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24021 states and 52835 transitions. [2022-11-23 15:08:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:45,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:45,090 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] [2022-11-23 15:08:45,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-23 15:08:45,091 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1963266960, now seen corresponding path program 16 times [2022-11-23 15:08:45,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:45,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019517256] [2022-11-23 15:08:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:46,567 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 15:08:46,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:46,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019517256] [2022-11-23 15:08:46,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019517256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:46,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:46,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:46,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27997897] [2022-11-23 15:08:46,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:46,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:46,569 INFO L87 Difference]: Start difference. First operand 24021 states and 52835 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:51,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:51,913 INFO L93 Difference]: Finished difference Result 30222 states and 65495 transitions. [2022-11-23 15:08:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:08:51,913 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:51,975 INFO L225 Difference]: With dead ends: 30222 [2022-11-23 15:08:51,975 INFO L226 Difference]: Without dead ends: 30222 [2022-11-23 15:08:51,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:08:51,976 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 916 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 4066 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 4114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:51,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1994 Invalid, 4114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4066 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:08:52,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30222 states. [2022-11-23 15:08:52,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30222 to 24015. [2022-11-23 15:08:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24015 states, 23972 states have (on average 2.203320540630736) internal successors, (52818), 24014 states have internal predecessors, (52818), 0 states have call successors, (0), 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 15:08:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24015 states to 24015 states and 52818 transitions. [2022-11-23 15:08:52,447 INFO L78 Accepts]: Start accepts. Automaton has 24015 states and 52818 transitions. Word has length 32 [2022-11-23 15:08:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:52,447 INFO L495 AbstractCegarLoop]: Abstraction has 24015 states and 52818 transitions. [2022-11-23 15:08:52,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:52,448 INFO L276 IsEmpty]: Start isEmpty. Operand 24015 states and 52818 transitions. [2022-11-23 15:08:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:08:52,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:52,452 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] [2022-11-23 15:08:52,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-23 15:08:52,453 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:08:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1886626318, now seen corresponding path program 17 times [2022-11-23 15:08:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:52,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877643027] [2022-11-23 15:08:52,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:54,490 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 15:08:54,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:54,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877643027] [2022-11-23 15:08:54,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877643027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:54,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:54,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:08:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521880776] [2022-11-23 15:08:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:54,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:08:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:08:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:08:54,492 INFO L87 Difference]: Start difference. First operand 24015 states and 52818 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:08:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:59,652 INFO L93 Difference]: Finished difference Result 30229 states and 65507 transitions. [2022-11-23 15:08:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:08:59,653 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:08:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:59,715 INFO L225 Difference]: With dead ends: 30229 [2022-11-23 15:08:59,715 INFO L226 Difference]: Without dead ends: 30229 [2022-11-23 15:08:59,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:08:59,717 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 878 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 3632 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 3684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:59,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1985 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3632 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:08:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30229 states. [2022-11-23 15:09:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30229 to 23594. [2022-11-23 15:09:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23594 states, 23551 states have (on average 2.2041526899070103) internal successors, (51910), 23593 states have internal predecessors, (51910), 0 states have call successors, (0), 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 15:09:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23594 states to 23594 states and 51910 transitions. [2022-11-23 15:09:00,162 INFO L78 Accepts]: Start accepts. Automaton has 23594 states and 51910 transitions. Word has length 32 [2022-11-23 15:09:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:00,162 INFO L495 AbstractCegarLoop]: Abstraction has 23594 states and 51910 transitions. [2022-11-23 15:09:00,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 23594 states and 51910 transitions. [2022-11-23 15:09:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:00,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:00,167 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] [2022-11-23 15:09:00,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-23 15:09:00,168 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:00,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:00,168 INFO L85 PathProgramCache]: Analyzing trace with hash -858693660, now seen corresponding path program 14 times [2022-11-23 15:09:00,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:00,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778371797] [2022-11-23 15:09:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:01,105 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 15:09:01,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:01,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778371797] [2022-11-23 15:09:01,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778371797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:01,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:01,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:01,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105547814] [2022-11-23 15:09:01,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:01,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:01,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:01,107 INFO L87 Difference]: Start difference. First operand 23594 states and 51910 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:09,020 INFO L93 Difference]: Finished difference Result 33599 states and 72400 transitions. [2022-11-23 15:09:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-23 15:09:09,021 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:09,086 INFO L225 Difference]: With dead ends: 33599 [2022-11-23 15:09:09,086 INFO L226 Difference]: Without dead ends: 33592 [2022-11-23 15:09:09,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=590, Invalid=1960, Unknown=0, NotChecked=0, Total=2550 [2022-11-23 15:09:09,087 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1140 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 5838 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 6288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 5838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:09,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1654 Invalid, 6288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 5838 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 15:09:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33592 states. [2022-11-23 15:09:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33592 to 23542. [2022-11-23 15:09:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23542 states, 23499 states have (on average 2.204051236222818) internal successors, (51793), 23541 states have internal predecessors, (51793), 0 states have call successors, (0), 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 15:09:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23542 states to 23542 states and 51793 transitions. [2022-11-23 15:09:09,536 INFO L78 Accepts]: Start accepts. Automaton has 23542 states and 51793 transitions. Word has length 32 [2022-11-23 15:09:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:09,536 INFO L495 AbstractCegarLoop]: Abstraction has 23542 states and 51793 transitions. [2022-11-23 15:09:09,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 23542 states and 51793 transitions. [2022-11-23 15:09:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:09,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:09,543 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] [2022-11-23 15:09:09,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-23 15:09:09,544 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash -978495620, now seen corresponding path program 18 times [2022-11-23 15:09:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:09,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566516327] [2022-11-23 15:09:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:11,649 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 15:09:11,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:11,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566516327] [2022-11-23 15:09:11,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566516327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:11,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:11,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626718097] [2022-11-23 15:09:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:11,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:11,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:11,651 INFO L87 Difference]: Start difference. First operand 23542 states and 51793 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:17,989 INFO L93 Difference]: Finished difference Result 29723 states and 64480 transitions. [2022-11-23 15:09:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:09:17,990 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:18,050 INFO L225 Difference]: With dead ends: 29723 [2022-11-23 15:09:18,050 INFO L226 Difference]: Without dead ends: 29723 [2022-11-23 15:09:18,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:09:18,051 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 826 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 4726 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:18,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1985 Invalid, 4754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4726 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 15:09:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29723 states. [2022-11-23 15:09:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29723 to 23425. [2022-11-23 15:09:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23425 states, 23382 states have (on average 2.203874775468309) internal successors, (51531), 23424 states have internal predecessors, (51531), 0 states have call successors, (0), 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 15:09:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23425 states to 23425 states and 51531 transitions. [2022-11-23 15:09:18,560 INFO L78 Accepts]: Start accepts. Automaton has 23425 states and 51531 transitions. Word has length 32 [2022-11-23 15:09:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:18,560 INFO L495 AbstractCegarLoop]: Abstraction has 23425 states and 51531 transitions. [2022-11-23 15:09:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23425 states and 51531 transitions. [2022-11-23 15:09:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:18,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:18,565 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] [2022-11-23 15:09:18,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-23 15:09:18,565 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:18,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1165926564, now seen corresponding path program 15 times [2022-11-23 15:09:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:18,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030785880] [2022-11-23 15:09:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:18,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:19,555 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 15:09:19,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:19,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030785880] [2022-11-23 15:09:19,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030785880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:19,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:19,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:19,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250771821] [2022-11-23 15:09:19,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:19,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:19,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:19,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:19,557 INFO L87 Difference]: Start difference. First operand 23425 states and 51531 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:30,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:30,023 INFO L93 Difference]: Finished difference Result 36052 states and 77274 transitions. [2022-11-23 15:09:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-23 15:09:30,023 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:30,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:30,092 INFO L225 Difference]: With dead ends: 36052 [2022-11-23 15:09:30,092 INFO L226 Difference]: Without dead ends: 36045 [2022-11-23 15:09:30,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=920, Invalid=3370, Unknown=0, NotChecked=0, Total=4290 [2022-11-23 15:09:30,093 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1160 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 7126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:30,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 2199 Invalid, 7126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 6629 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 15:09:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36045 states. [2022-11-23 15:09:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36045 to 24273. [2022-11-23 15:09:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24273 states, 24230 states have (on average 2.2037556747833262) internal successors, (53397), 24272 states have internal predecessors, (53397), 0 states have call successors, (0), 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 15:09:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24273 states to 24273 states and 53397 transitions. [2022-11-23 15:09:30,576 INFO L78 Accepts]: Start accepts. Automaton has 24273 states and 53397 transitions. Word has length 32 [2022-11-23 15:09:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:30,577 INFO L495 AbstractCegarLoop]: Abstraction has 24273 states and 53397 transitions. [2022-11-23 15:09:30,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 24273 states and 53397 transitions. [2022-11-23 15:09:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:30,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:30,583 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] [2022-11-23 15:09:30,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-23 15:09:30,584 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:30,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1285728524, now seen corresponding path program 19 times [2022-11-23 15:09:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:30,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300851049] [2022-11-23 15:09:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:31,857 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 15:09:31,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:31,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300851049] [2022-11-23 15:09:31,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300851049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:31,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:31,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:09:31,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129203438] [2022-11-23 15:09:31,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:31,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:09:31,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:31,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:09:31,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:09:31,860 INFO L87 Difference]: Start difference. First operand 24273 states and 53397 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:36,037 INFO L93 Difference]: Finished difference Result 31159 states and 68244 transitions. [2022-11-23 15:09:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:09:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:36,104 INFO L225 Difference]: With dead ends: 31159 [2022-11-23 15:09:36,104 INFO L226 Difference]: Without dead ends: 31159 [2022-11-23 15:09:36,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2022-11-23 15:09:36,106 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 705 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:36,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1515 Invalid, 3763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 15:09:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31159 states. [2022-11-23 15:09:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31159 to 24402. [2022-11-23 15:09:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24402 states, 24359 states have (on average 2.2040313641775113) internal successors, (53688), 24401 states have internal predecessors, (53688), 0 states have call successors, (0), 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 15:09:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24402 states to 24402 states and 53688 transitions. [2022-11-23 15:09:36,565 INFO L78 Accepts]: Start accepts. Automaton has 24402 states and 53688 transitions. Word has length 32 [2022-11-23 15:09:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:36,565 INFO L495 AbstractCegarLoop]: Abstraction has 24402 states and 53688 transitions. [2022-11-23 15:09:36,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 24402 states and 53688 transitions. [2022-11-23 15:09:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:36,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:36,573 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] [2022-11-23 15:09:36,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-23 15:09:36,574 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:36,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:36,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1160129074, now seen corresponding path program 20 times [2022-11-23 15:09:36,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:36,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377777779] [2022-11-23 15:09:36,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:36,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:38,258 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 15:09:38,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:38,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377777779] [2022-11-23 15:09:38,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377777779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:38,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:38,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770948964] [2022-11-23 15:09:38,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:38,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:38,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:38,260 INFO L87 Difference]: Start difference. First operand 24402 states and 53688 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:45,332 INFO L93 Difference]: Finished difference Result 31872 states and 68843 transitions. [2022-11-23 15:09:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 15:09:45,333 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:45,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:45,396 INFO L225 Difference]: With dead ends: 31872 [2022-11-23 15:09:45,396 INFO L226 Difference]: Without dead ends: 31872 [2022-11-23 15:09:45,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-11-23 15:09:45,397 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1007 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 5198 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 5198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:45,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 2376 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 5198 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 15:09:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31872 states. [2022-11-23 15:09:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31872 to 24402. [2022-11-23 15:09:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24402 states, 24359 states have (on average 2.203785048647317) internal successors, (53682), 24401 states have internal predecessors, (53682), 0 states have call successors, (0), 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 15:09:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24402 states to 24402 states and 53682 transitions. [2022-11-23 15:09:45,882 INFO L78 Accepts]: Start accepts. Automaton has 24402 states and 53682 transitions. Word has length 32 [2022-11-23 15:09:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:45,882 INFO L495 AbstractCegarLoop]: Abstraction has 24402 states and 53682 transitions. [2022-11-23 15:09:45,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:45,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24402 states and 53682 transitions. [2022-11-23 15:09:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:45,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:45,887 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] [2022-11-23 15:09:45,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-23 15:09:45,887 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:45,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:45,888 INFO L85 PathProgramCache]: Analyzing trace with hash -844642384, now seen corresponding path program 21 times [2022-11-23 15:09:45,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:45,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009893950] [2022-11-23 15:09:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:45,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,643 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 15:09:47,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:47,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009893950] [2022-11-23 15:09:47,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009893950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:47,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:47,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313031491] [2022-11-23 15:09:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:47,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:47,645 INFO L87 Difference]: Start difference. First operand 24402 states and 53682 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:53,698 INFO L93 Difference]: Finished difference Result 31898 states and 68881 transitions. [2022-11-23 15:09:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:09:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:09:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:53,764 INFO L225 Difference]: With dead ends: 31898 [2022-11-23 15:09:53,765 INFO L226 Difference]: Without dead ends: 31898 [2022-11-23 15:09:53,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 15:09:53,766 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 915 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 4111 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 4159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:53,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2356 Invalid, 4159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4111 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:09:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31898 states. [2022-11-23 15:09:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31898 to 24396. [2022-11-23 15:09:54,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24396 states, 24353 states have (on average 2.203547817517349) internal successors, (53663), 24395 states have internal predecessors, (53663), 0 states have call successors, (0), 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 15:09:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24396 states to 24396 states and 53663 transitions. [2022-11-23 15:09:54,252 INFO L78 Accepts]: Start accepts. Automaton has 24396 states and 53663 transitions. Word has length 32 [2022-11-23 15:09:54,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:54,252 INFO L495 AbstractCegarLoop]: Abstraction has 24396 states and 53663 transitions. [2022-11-23 15:09:54,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:09:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 24396 states and 53663 transitions. [2022-11-23 15:09:54,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:09:54,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:54,258 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] [2022-11-23 15:09:54,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-23 15:09:54,258 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:09:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1289716402, now seen corresponding path program 22 times [2022-11-23 15:09:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:54,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521018726] [2022-11-23 15:09:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:54,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:55,915 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 15:09:55,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:55,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521018726] [2022-11-23 15:09:55,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521018726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:55,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:55,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:09:55,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775184218] [2022-11-23 15:09:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:55,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:09:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:55,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:09:55,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:09:55,917 INFO L87 Difference]: Start difference. First operand 24396 states and 53663 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:01,658 INFO L93 Difference]: Finished difference Result 31920 states and 68918 transitions. [2022-11-23 15:10:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:10:01,659 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:01,721 INFO L225 Difference]: With dead ends: 31920 [2022-11-23 15:10:01,721 INFO L226 Difference]: Without dead ends: 31920 [2022-11-23 15:10:01,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 15:10:01,722 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 878 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 3747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:01,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 2347 Invalid, 3747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 15:10:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31920 states. [2022-11-23 15:10:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31920 to 23983. [2022-11-23 15:10:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 23940 states have (on average 2.203842940685046) internal successors, (52760), 23982 states have internal predecessors, (52760), 0 states have call successors, (0), 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 15:10:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 52760 transitions. [2022-11-23 15:10:02,386 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 52760 transitions. Word has length 32 [2022-11-23 15:10:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:02,387 INFO L495 AbstractCegarLoop]: Abstraction has 23983 states and 52760 transitions. [2022-11-23 15:10:02,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 52760 transitions. [2022-11-23 15:10:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:02,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:02,391 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] [2022-11-23 15:10:02,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-23 15:10:02,392 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:02,393 INFO L85 PathProgramCache]: Analyzing trace with hash 887874190, now seen corresponding path program 23 times [2022-11-23 15:10:02,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:02,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151075657] [2022-11-23 15:10:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:04,043 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 15:10:04,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:04,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151075657] [2022-11-23 15:10:04,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151075657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:04,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:04,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:04,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550780251] [2022-11-23 15:10:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:04,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:04,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:04,045 INFO L87 Difference]: Start difference. First operand 23983 states and 52760 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:08,936 INFO L93 Difference]: Finished difference Result 29736 states and 64490 transitions. [2022-11-23 15:10:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 15:10:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:09,122 INFO L225 Difference]: With dead ends: 29736 [2022-11-23 15:10:09,122 INFO L226 Difference]: Without dead ends: 29736 [2022-11-23 15:10:09,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:10:09,123 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 869 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 3506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:09,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1612 Invalid, 3506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 15:10:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29736 states. [2022-11-23 15:10:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29736 to 23985. [2022-11-23 15:10:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23985 states, 23942 states have (on average 2.2038676802272157) internal successors, (52765), 23984 states have internal predecessors, (52765), 0 states have call successors, (0), 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 15:10:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23985 states to 23985 states and 52765 transitions. [2022-11-23 15:10:09,555 INFO L78 Accepts]: Start accepts. Automaton has 23985 states and 52765 transitions. Word has length 32 [2022-11-23 15:10:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:09,556 INFO L495 AbstractCegarLoop]: Abstraction has 23985 states and 52765 transitions. [2022-11-23 15:10:09,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:09,556 INFO L276 IsEmpty]: Start isEmpty. Operand 23985 states and 52765 transitions. [2022-11-23 15:10:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:09,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:09,561 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] [2022-11-23 15:10:09,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-23 15:10:09,561 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash -404160306, now seen corresponding path program 24 times [2022-11-23 15:10:09,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:09,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069864532] [2022-11-23 15:10:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:09,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:11,088 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 15:10:11,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:11,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069864532] [2022-11-23 15:10:11,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069864532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:11,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:11,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:11,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198981652] [2022-11-23 15:10:11,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:11,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:11,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:11,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:11,090 INFO L87 Difference]: Start difference. First operand 23985 states and 52765 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:16,694 INFO L93 Difference]: Finished difference Result 29748 states and 64514 transitions. [2022-11-23 15:10:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:10:16,694 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:16,753 INFO L225 Difference]: With dead ends: 29748 [2022-11-23 15:10:16,753 INFO L226 Difference]: Without dead ends: 29748 [2022-11-23 15:10:16,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:10:16,754 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 849 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 4333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:16,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1616 Invalid, 4333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 4298 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 15:10:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29748 states. [2022-11-23 15:10:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29748 to 23983. [2022-11-23 15:10:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 23940 states have (on average 2.203842940685046) internal successors, (52760), 23982 states have internal predecessors, (52760), 0 states have call successors, (0), 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 15:10:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 52760 transitions. [2022-11-23 15:10:17,191 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 52760 transitions. Word has length 32 [2022-11-23 15:10:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:17,191 INFO L495 AbstractCegarLoop]: Abstraction has 23983 states and 52760 transitions. [2022-11-23 15:10:17,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 52760 transitions. [2022-11-23 15:10:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:17,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:17,196 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] [2022-11-23 15:10:17,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-23 15:10:17,196 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:17,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1704792718, now seen corresponding path program 25 times [2022-11-23 15:10:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:17,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64169011] [2022-11-23 15:10:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:18,579 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 15:10:18,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:18,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64169011] [2022-11-23 15:10:18,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64169011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:18,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:18,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:18,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667281877] [2022-11-23 15:10:18,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:18,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:18,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:18,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:18,583 INFO L87 Difference]: Start difference. First operand 23983 states and 52760 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:24,133 INFO L93 Difference]: Finished difference Result 29756 states and 64530 transitions. [2022-11-23 15:10:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:10:24,134 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:24,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:24,190 INFO L225 Difference]: With dead ends: 29756 [2022-11-23 15:10:24,191 INFO L226 Difference]: Without dead ends: 29756 [2022-11-23 15:10:24,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:10:24,191 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 870 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 4000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:24,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1603 Invalid, 4000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3964 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:10:24,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29756 states. [2022-11-23 15:10:24,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29756 to 23981. [2022-11-23 15:10:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23938 states have (on average 2.20381819700894) internal successors, (52755), 23980 states have internal predecessors, (52755), 0 states have call successors, (0), 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 15:10:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 52755 transitions. [2022-11-23 15:10:24,626 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 52755 transitions. Word has length 32 [2022-11-23 15:10:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:24,627 INFO L495 AbstractCegarLoop]: Abstraction has 23981 states and 52755 transitions. [2022-11-23 15:10:24,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 52755 transitions. [2022-11-23 15:10:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:24,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:24,631 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] [2022-11-23 15:10:24,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-23 15:10:24,632 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:24,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1713541298, now seen corresponding path program 26 times [2022-11-23 15:10:24,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:24,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084832924] [2022-11-23 15:10:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:26,138 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 15:10:26,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:26,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084832924] [2022-11-23 15:10:26,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084832924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:26,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:26,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:26,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108250441] [2022-11-23 15:10:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:26,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:26,139 INFO L87 Difference]: Start difference. First operand 23981 states and 52755 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:32,604 INFO L93 Difference]: Finished difference Result 29718 states and 64452 transitions. [2022-11-23 15:10:32,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:10:32,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:32,661 INFO L225 Difference]: With dead ends: 29718 [2022-11-23 15:10:32,661 INFO L226 Difference]: Without dead ends: 29718 [2022-11-23 15:10:32,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:10:32,662 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1015 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 4747 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 4787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:32,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 1621 Invalid, 4787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4747 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:10:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29718 states. [2022-11-23 15:10:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29718 to 23981. [2022-11-23 15:10:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23938 states have (on average 2.20381819700894) internal successors, (52755), 23980 states have internal predecessors, (52755), 0 states have call successors, (0), 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 15:10:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 52755 transitions. [2022-11-23 15:10:33,089 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 52755 transitions. Word has length 32 [2022-11-23 15:10:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:33,089 INFO L495 AbstractCegarLoop]: Abstraction has 23981 states and 52755 transitions. [2022-11-23 15:10:33,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 52755 transitions. [2022-11-23 15:10:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:33,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:33,094 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] [2022-11-23 15:10:33,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-23 15:10:33,095 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:33,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:33,095 INFO L85 PathProgramCache]: Analyzing trace with hash -37417458, now seen corresponding path program 27 times [2022-11-23 15:10:33,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:33,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926352512] [2022-11-23 15:10:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:34,591 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 15:10:34,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:34,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926352512] [2022-11-23 15:10:34,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926352512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:34,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:34,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419377770] [2022-11-23 15:10:34,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:34,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:34,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:34,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:34,593 INFO L87 Difference]: Start difference. First operand 23981 states and 52755 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:40,068 INFO L93 Difference]: Finished difference Result 29728 states and 64472 transitions. [2022-11-23 15:10:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 15:10:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:40,127 INFO L225 Difference]: With dead ends: 29728 [2022-11-23 15:10:40,127 INFO L226 Difference]: Without dead ends: 29728 [2022-11-23 15:10:40,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:10:40,127 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 788 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:40,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1738 Invalid, 4149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 15:10:40,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29728 states. [2022-11-23 15:10:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29728 to 23977. [2022-11-23 15:10:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23977 states, 23934 states have (on average 2.203768697250773) internal successors, (52745), 23976 states have internal predecessors, (52745), 0 states have call successors, (0), 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 15:10:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23977 states to 23977 states and 52745 transitions. [2022-11-23 15:10:40,780 INFO L78 Accepts]: Start accepts. Automaton has 23977 states and 52745 transitions. Word has length 32 [2022-11-23 15:10:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:40,780 INFO L495 AbstractCegarLoop]: Abstraction has 23977 states and 52745 transitions. [2022-11-23 15:10:40,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 23977 states and 52745 transitions. [2022-11-23 15:10:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:40,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:40,786 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] [2022-11-23 15:10:40,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-23 15:10:40,786 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:40,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1329451954, now seen corresponding path program 28 times [2022-11-23 15:10:40,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:40,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962625799] [2022-11-23 15:10:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:40,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:42,500 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 15:10:42,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:42,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962625799] [2022-11-23 15:10:42,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962625799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:42,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:42,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648734534] [2022-11-23 15:10:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:42,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:42,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:42,502 INFO L87 Difference]: Start difference. First operand 23977 states and 52745 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:48,816 INFO L93 Difference]: Finished difference Result 29726 states and 64466 transitions. [2022-11-23 15:10:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 15:10:48,817 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:10:48,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:48,875 INFO L225 Difference]: With dead ends: 29726 [2022-11-23 15:10:48,875 INFO L226 Difference]: Without dead ends: 29726 [2022-11-23 15:10:48,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:10:48,876 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 913 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:48,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1606 Invalid, 4154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 15:10:48,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29726 states. [2022-11-23 15:10:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29726 to 23975. [2022-11-23 15:10:49,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23975 states, 23932 states have (on average 2.2037439411666386) internal successors, (52740), 23974 states have internal predecessors, (52740), 0 states have call successors, (0), 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 15:10:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23975 states to 23975 states and 52740 transitions. [2022-11-23 15:10:49,336 INFO L78 Accepts]: Start accepts. Automaton has 23975 states and 52740 transitions. Word has length 32 [2022-11-23 15:10:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:49,336 INFO L495 AbstractCegarLoop]: Abstraction has 23975 states and 52740 transitions. [2022-11-23 15:10:49,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:10:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 23975 states and 52740 transitions. [2022-11-23 15:10:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:10:49,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:49,341 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] [2022-11-23 15:10:49,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-23 15:10:49,341 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:10:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash -371838812, now seen corresponding path program 16 times [2022-11-23 15:10:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:49,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091928760] [2022-11-23 15:10:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:50,487 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 15:10:50,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:50,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091928760] [2022-11-23 15:10:50,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091928760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:50,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:50,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:10:50,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44818872] [2022-11-23 15:10:50,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:50,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:10:50,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:50,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:10:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:10:50,489 INFO L87 Difference]: Start difference. First operand 23975 states and 52740 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:00,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:00,483 INFO L93 Difference]: Finished difference Result 35515 states and 76279 transitions. [2022-11-23 15:11:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 15:11:00,484 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:00,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:00,551 INFO L225 Difference]: With dead ends: 35515 [2022-11-23 15:11:00,551 INFO L226 Difference]: Without dead ends: 35508 [2022-11-23 15:11:00,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=681, Invalid=2399, Unknown=0, NotChecked=0, Total=3080 [2022-11-23 15:11:00,552 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1401 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 6228 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 6852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 6228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:00,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1952 Invalid, 6852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 6228 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-23 15:11:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35508 states. [2022-11-23 15:11:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35508 to 24687. [2022-11-23 15:11:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24687 states, 24644 states have (on average 2.2040253205648432) internal successors, (54316), 24686 states have internal predecessors, (54316), 0 states have call successors, (0), 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 15:11:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24687 states to 24687 states and 54316 transitions. [2022-11-23 15:11:01,046 INFO L78 Accepts]: Start accepts. Automaton has 24687 states and 54316 transitions. Word has length 32 [2022-11-23 15:11:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:01,046 INFO L495 AbstractCegarLoop]: Abstraction has 24687 states and 54316 transitions. [2022-11-23 15:11:01,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:01,047 INFO L276 IsEmpty]: Start isEmpty. Operand 24687 states and 54316 transitions. [2022-11-23 15:11:01,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:01,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:01,052 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] [2022-11-23 15:11:01,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-23 15:11:01,052 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash -491640772, now seen corresponding path program 29 times [2022-11-23 15:11:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:01,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961512825] [2022-11-23 15:11:01,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:01,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:02,456 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 15:11:02,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:02,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961512825] [2022-11-23 15:11:02,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961512825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:02,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:02,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:02,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155635446] [2022-11-23 15:11:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:02,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:02,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:02,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:02,458 INFO L87 Difference]: Start difference. First operand 24687 states and 54316 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:10,121 INFO L93 Difference]: Finished difference Result 31095 states and 67241 transitions. [2022-11-23 15:11:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:11:10,122 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:10,184 INFO L225 Difference]: With dead ends: 31095 [2022-11-23 15:11:10,184 INFO L226 Difference]: Without dead ends: 31095 [2022-11-23 15:11:10,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:11:10,185 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1320 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 5027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:10,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 2080 Invalid, 5027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4969 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:11:10,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31095 states. [2022-11-23 15:11:10,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31095 to 24380. [2022-11-23 15:11:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24380 states, 24337 states have (on average 2.203558367917163) internal successors, (53628), 24379 states have internal predecessors, (53628), 0 states have call successors, (0), 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 15:11:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24380 states to 24380 states and 53628 transitions. [2022-11-23 15:11:10,633 INFO L78 Accepts]: Start accepts. Automaton has 24380 states and 53628 transitions. Word has length 32 [2022-11-23 15:11:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:10,634 INFO L495 AbstractCegarLoop]: Abstraction has 24380 states and 53628 transitions. [2022-11-23 15:11:10,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 24380 states and 53628 transitions. [2022-11-23 15:11:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:10,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:10,639 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] [2022-11-23 15:11:10,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-23 15:11:10,639 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:10,640 INFO L85 PathProgramCache]: Analyzing trace with hash -366041322, now seen corresponding path program 30 times [2022-11-23 15:11:10,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:10,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333365596] [2022-11-23 15:11:10,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:10,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:12,438 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 15:11:12,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:12,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333365596] [2022-11-23 15:11:12,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333365596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:12,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:12,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:12,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571196210] [2022-11-23 15:11:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:12,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:12,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:12,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:12,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:12,441 INFO L87 Difference]: Start difference. First operand 24380 states and 53628 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:20,753 INFO L93 Difference]: Finished difference Result 30626 states and 66358 transitions. [2022-11-23 15:11:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:11:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:20,811 INFO L225 Difference]: With dead ends: 30626 [2022-11-23 15:11:20,812 INFO L226 Difference]: Without dead ends: 30626 [2022-11-23 15:11:20,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:11:20,812 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 913 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 5886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:20,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 2214 Invalid, 5886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 5844 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-23 15:11:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30626 states. [2022-11-23 15:11:21,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30626 to 24371. [2022-11-23 15:11:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24371 states, 24328 states have (on average 2.203304833936205) internal successors, (53602), 24370 states have internal predecessors, (53602), 0 states have call successors, (0), 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 15:11:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24371 states to 24371 states and 53602 transitions. [2022-11-23 15:11:21,244 INFO L78 Accepts]: Start accepts. Automaton has 24371 states and 53602 transitions. Word has length 32 [2022-11-23 15:11:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:21,244 INFO L495 AbstractCegarLoop]: Abstraction has 24371 states and 53602 transitions. [2022-11-23 15:11:21,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 24371 states and 53602 transitions. [2022-11-23 15:11:21,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:21,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:21,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:21,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-23 15:11:21,250 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:21,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:21,250 INFO L85 PathProgramCache]: Analyzing trace with hash -50554632, now seen corresponding path program 31 times [2022-11-23 15:11:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:21,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875685949] [2022-11-23 15:11:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:21,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:22,685 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 15:11:22,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:22,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875685949] [2022-11-23 15:11:22,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875685949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:22,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:22,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:22,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697478701] [2022-11-23 15:11:22,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:22,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:22,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:22,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:22,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:22,687 INFO L87 Difference]: Start difference. First operand 24371 states and 53602 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:29,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:29,177 INFO L93 Difference]: Finished difference Result 30656 states and 66414 transitions. [2022-11-23 15:11:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:11:29,178 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:29,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:29,235 INFO L225 Difference]: With dead ends: 30656 [2022-11-23 15:11:29,235 INFO L226 Difference]: Without dead ends: 30656 [2022-11-23 15:11:29,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:11:29,236 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 811 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 4914 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 4962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:29,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 2196 Invalid, 4962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4914 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:11:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2022-11-23 15:11:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 24365. [2022-11-23 15:11:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24365 states, 24322 states have (on average 2.2031494120549295) internal successors, (53585), 24364 states have internal predecessors, (53585), 0 states have call successors, (0), 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 15:11:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24365 states to 24365 states and 53585 transitions. [2022-11-23 15:11:29,657 INFO L78 Accepts]: Start accepts. Automaton has 24365 states and 53585 transitions. Word has length 32 [2022-11-23 15:11:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:29,657 INFO L495 AbstractCegarLoop]: Abstraction has 24365 states and 53585 transitions. [2022-11-23 15:11:29,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 24365 states and 53585 transitions. [2022-11-23 15:11:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:29,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:29,664 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] [2022-11-23 15:11:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-23 15:11:29,664 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash -495628650, now seen corresponding path program 32 times [2022-11-23 15:11:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:29,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977857448] [2022-11-23 15:11:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:29,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:31,148 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 15:11:31,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:31,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977857448] [2022-11-23 15:11:31,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977857448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:31,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:31,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658543903] [2022-11-23 15:11:31,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:31,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:31,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:31,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:31,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:31,150 INFO L87 Difference]: Start difference. First operand 24365 states and 53585 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:37,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:37,937 INFO L93 Difference]: Finished difference Result 30663 states and 66426 transitions. [2022-11-23 15:11:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:11:37,937 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:37,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:37,998 INFO L225 Difference]: With dead ends: 30663 [2022-11-23 15:11:37,999 INFO L226 Difference]: Without dead ends: 30663 [2022-11-23 15:11:37,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:11:37,999 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 876 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 4720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:37,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2069 Invalid, 4720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 15:11:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30663 states. [2022-11-23 15:11:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30663 to 24074. [2022-11-23 15:11:38,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24074 states, 24031 states have (on average 2.203653614081811) internal successors, (52956), 24073 states have internal predecessors, (52956), 0 states have call successors, (0), 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 15:11:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24074 states to 24074 states and 52956 transitions. [2022-11-23 15:11:38,435 INFO L78 Accepts]: Start accepts. Automaton has 24074 states and 52956 transitions. Word has length 32 [2022-11-23 15:11:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:38,435 INFO L495 AbstractCegarLoop]: Abstraction has 24074 states and 52956 transitions. [2022-11-23 15:11:38,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 24074 states and 52956 transitions. [2022-11-23 15:11:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:38,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:38,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:38,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-23 15:11:38,440 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:38,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:38,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1833293404, now seen corresponding path program 17 times [2022-11-23 15:11:38,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:38,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810485188] [2022-11-23 15:11:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:38,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:39,476 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 15:11:39,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:39,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810485188] [2022-11-23 15:11:39,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810485188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:39,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:39,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:39,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223984586] [2022-11-23 15:11:39,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:39,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:39,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:39,478 INFO L87 Difference]: Start difference. First operand 24074 states and 52956 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:49,005 INFO L93 Difference]: Finished difference Result 33723 states and 72710 transitions. [2022-11-23 15:11:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 15:11:49,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:49,201 INFO L225 Difference]: With dead ends: 33723 [2022-11-23 15:11:49,201 INFO L226 Difference]: Without dead ends: 33716 [2022-11-23 15:11:49,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=694, Invalid=2276, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 15:11:49,202 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1154 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 5738 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 6188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 5738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:49,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1575 Invalid, 6188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 5738 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 15:11:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33716 states. [2022-11-23 15:11:49,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33716 to 24016. [2022-11-23 15:11:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24016 states, 23973 states have (on average 2.203562340966921) internal successors, (52826), 24015 states have internal predecessors, (52826), 0 states have call successors, (0), 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 15:11:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24016 states to 24016 states and 52826 transitions. [2022-11-23 15:11:49,637 INFO L78 Accepts]: Start accepts. Automaton has 24016 states and 52826 transitions. Word has length 32 [2022-11-23 15:11:49,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:49,637 INFO L495 AbstractCegarLoop]: Abstraction has 24016 states and 52826 transitions. [2022-11-23 15:11:49,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:49,638 INFO L276 IsEmpty]: Start isEmpty. Operand 24016 states and 52826 transitions. [2022-11-23 15:11:49,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:49,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:49,642 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] [2022-11-23 15:11:49,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-23 15:11:49,642 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1953095364, now seen corresponding path program 33 times [2022-11-23 15:11:49,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:49,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977891543] [2022-11-23 15:11:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:49,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:51,231 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 15:11:51,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:51,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977891543] [2022-11-23 15:11:51,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977891543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:51,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:51,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:11:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402621206] [2022-11-23 15:11:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:51,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:11:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:11:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:11:51,233 INFO L87 Difference]: Start difference. First operand 24016 states and 52826 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:59,430 INFO L93 Difference]: Finished difference Result 29788 states and 64670 transitions. [2022-11-23 15:11:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:11:59,431 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:11:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:59,490 INFO L225 Difference]: With dead ends: 29788 [2022-11-23 15:11:59,490 INFO L226 Difference]: Without dead ends: 29788 [2022-11-23 15:11:59,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:11:59,491 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 830 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 6108 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 6134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:59,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1937 Invalid, 6134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6108 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-23 15:11:59,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29788 states. [2022-11-23 15:11:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29788 to 23975. [2022-11-23 15:11:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23975 states, 23932 states have (on average 2.2037439411666386) internal successors, (52740), 23974 states have internal predecessors, (52740), 0 states have call successors, (0), 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 15:11:59,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23975 states to 23975 states and 52740 transitions. [2022-11-23 15:11:59,920 INFO L78 Accepts]: Start accepts. Automaton has 23975 states and 52740 transitions. Word has length 32 [2022-11-23 15:11:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:59,920 INFO L495 AbstractCegarLoop]: Abstraction has 23975 states and 52740 transitions. [2022-11-23 15:11:59,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:11:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 23975 states and 52740 transitions. [2022-11-23 15:11:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:11:59,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:59,925 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] [2022-11-23 15:11:59,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-23 15:11:59,925 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:11:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash -95941756, now seen corresponding path program 18 times [2022-11-23 15:11:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300535086] [2022-11-23 15:11:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:01,278 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 15:12:01,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:01,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300535086] [2022-11-23 15:12:01,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300535086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:01,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:01,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:12:01,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973461140] [2022-11-23 15:12:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:01,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:12:01,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:12:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:12:01,280 INFO L87 Difference]: Start difference. First operand 23975 states and 52740 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:08,064 INFO L93 Difference]: Finished difference Result 33201 states and 71707 transitions. [2022-11-23 15:12:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:12:08,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:08,130 INFO L225 Difference]: With dead ends: 33201 [2022-11-23 15:12:08,130 INFO L226 Difference]: Without dead ends: 33197 [2022-11-23 15:12:08,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=355, Invalid=905, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:12:08,131 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1217 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 4103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:08,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 864 Invalid, 4103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 15:12:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33197 states. [2022-11-23 15:12:08,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33197 to 24849. [2022-11-23 15:12:08,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24849 states, 24806 states have (on average 2.207530436184794) internal successors, (54760), 24848 states have internal predecessors, (54760), 0 states have call successors, (0), 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 15:12:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24849 states to 24849 states and 54760 transitions. [2022-11-23 15:12:08,612 INFO L78 Accepts]: Start accepts. Automaton has 24849 states and 54760 transitions. Word has length 32 [2022-11-23 15:12:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:08,612 INFO L495 AbstractCegarLoop]: Abstraction has 24849 states and 54760 transitions. [2022-11-23 15:12:08,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 24849 states and 54760 transitions. [2022-11-23 15:12:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:08,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:08,618 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] [2022-11-23 15:12:08,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-23 15:12:08,618 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1945276424, now seen corresponding path program 34 times [2022-11-23 15:12:08,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:08,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626074789] [2022-11-23 15:12:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:08,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:10,101 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 15:12:10,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:10,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626074789] [2022-11-23 15:12:10,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626074789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:10,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:10,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:12:10,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404920649] [2022-11-23 15:12:10,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:10,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:12:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:12:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:12:10,103 INFO L87 Difference]: Start difference. First operand 24849 states and 54760 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:15,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:15,060 INFO L93 Difference]: Finished difference Result 29321 states and 64135 transitions. [2022-11-23 15:12:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:12:15,061 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:15,115 INFO L225 Difference]: With dead ends: 29321 [2022-11-23 15:12:15,115 INFO L226 Difference]: Without dead ends: 29321 [2022-11-23 15:12:15,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:12:15,116 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 619 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 4786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:15,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 1080 Invalid, 4786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4766 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:12:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29321 states. [2022-11-23 15:12:15,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29321 to 25304. [2022-11-23 15:12:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25304 states, 25261 states have (on average 2.208661573176042) internal successors, (55793), 25303 states have internal predecessors, (55793), 0 states have call successors, (0), 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 15:12:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25304 states to 25304 states and 55793 transitions. [2022-11-23 15:12:15,640 INFO L78 Accepts]: Start accepts. Automaton has 25304 states and 55793 transitions. Word has length 32 [2022-11-23 15:12:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:15,640 INFO L495 AbstractCegarLoop]: Abstraction has 25304 states and 55793 transitions. [2022-11-23 15:12:15,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 25304 states and 55793 transitions. [2022-11-23 15:12:15,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:15,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:15,646 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] [2022-11-23 15:12:15,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-23 15:12:15,646 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2049295712, now seen corresponding path program 19 times [2022-11-23 15:12:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:15,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467165416] [2022-11-23 15:12:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:15,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:16,759 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 15:12:16,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:16,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467165416] [2022-11-23 15:12:16,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467165416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:16,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:16,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:12:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047632050] [2022-11-23 15:12:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:16,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:12:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:16,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:12:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:12:16,761 INFO L87 Difference]: Start difference. First operand 25304 states and 55793 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:22,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:22,314 INFO L93 Difference]: Finished difference Result 36311 states and 78891 transitions. [2022-11-23 15:12:22,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:12:22,315 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:22,391 INFO L225 Difference]: With dead ends: 36311 [2022-11-23 15:12:22,391 INFO L226 Difference]: Without dead ends: 36307 [2022-11-23 15:12:22,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:12:22,392 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 941 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:22,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1137 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 15:12:22,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36307 states. [2022-11-23 15:12:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36307 to 27374. [2022-11-23 15:12:22,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27374 states, 27331 states have (on average 2.2164940909589843) internal successors, (60579), 27373 states have internal predecessors, (60579), 0 states have call successors, (0), 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 15:12:22,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27374 states to 27374 states and 60579 transitions. [2022-11-23 15:12:22,924 INFO L78 Accepts]: Start accepts. Automaton has 27374 states and 60579 transitions. Word has length 32 [2022-11-23 15:12:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:22,925 INFO L495 AbstractCegarLoop]: Abstraction has 27374 states and 60579 transitions. [2022-11-23 15:12:22,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 27374 states and 60579 transitions. [2022-11-23 15:12:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:22,930 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] [2022-11-23 15:12:22,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-23 15:12:22,931 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:22,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:22,931 INFO L85 PathProgramCache]: Analyzing trace with hash -614459190, now seen corresponding path program 20 times [2022-11-23 15:12:22,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:22,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603678305] [2022-11-23 15:12:22,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:22,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:23,945 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 15:12:23,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:23,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603678305] [2022-11-23 15:12:23,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603678305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:23,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:23,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:12:23,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674761425] [2022-11-23 15:12:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:23,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:12:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:12:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:12:23,948 INFO L87 Difference]: Start difference. First operand 27374 states and 60579 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:35,551 INFO L93 Difference]: Finished difference Result 43337 states and 93748 transitions. [2022-11-23 15:12:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-23 15:12:35,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:35,637 INFO L225 Difference]: With dead ends: 43337 [2022-11-23 15:12:35,637 INFO L226 Difference]: Without dead ends: 43330 [2022-11-23 15:12:35,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=951, Invalid=3209, Unknown=0, NotChecked=0, Total=4160 [2022-11-23 15:12:35,638 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1333 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 6265 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 6942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 6265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:35,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 2149 Invalid, 6942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [677 Valid, 6265 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 15:12:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43330 states. [2022-11-23 15:12:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43330 to 31590. [2022-11-23 15:12:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31590 states, 31547 states have (on average 2.2178971059054744) internal successors, (69968), 31589 states have internal predecessors, (69968), 0 states have call successors, (0), 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 15:12:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31590 states to 31590 states and 69968 transitions. [2022-11-23 15:12:36,318 INFO L78 Accepts]: Start accepts. Automaton has 31590 states and 69968 transitions. Word has length 32 [2022-11-23 15:12:36,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:36,318 INFO L495 AbstractCegarLoop]: Abstraction has 31590 states and 69968 transitions. [2022-11-23 15:12:36,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 31590 states and 69968 transitions. [2022-11-23 15:12:36,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:36,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:36,324 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] [2022-11-23 15:12:36,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-23 15:12:36,325 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:36,325 INFO L85 PathProgramCache]: Analyzing trace with hash -734261150, now seen corresponding path program 35 times [2022-11-23 15:12:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:36,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179224082] [2022-11-23 15:12:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:36,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:38,037 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 15:12:38,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:38,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179224082] [2022-11-23 15:12:38,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179224082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:38,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:38,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:12:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652740372] [2022-11-23 15:12:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:38,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:12:38,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:38,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:12:38,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:12:38,040 INFO L87 Difference]: Start difference. First operand 31590 states and 69968 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:45,131 INFO L93 Difference]: Finished difference Result 36995 states and 80450 transitions. [2022-11-23 15:12:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:12:45,131 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:45,210 INFO L225 Difference]: With dead ends: 36995 [2022-11-23 15:12:45,210 INFO L226 Difference]: Without dead ends: 36995 [2022-11-23 15:12:45,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:12:45,211 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1240 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 4799 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 4861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:45,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 2193 Invalid, 4861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4799 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 15:12:45,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36995 states. [2022-11-23 15:12:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36995 to 30762. [2022-11-23 15:12:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30762 states, 30719 states have (on average 2.2182362707119374) internal successors, (68142), 30761 states have internal predecessors, (68142), 0 states have call successors, (0), 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 15:12:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30762 states to 30762 states and 68142 transitions. [2022-11-23 15:12:45,945 INFO L78 Accepts]: Start accepts. Automaton has 30762 states and 68142 transitions. Word has length 32 [2022-11-23 15:12:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:45,946 INFO L495 AbstractCegarLoop]: Abstraction has 30762 states and 68142 transitions. [2022-11-23 15:12:45,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:45,946 INFO L276 IsEmpty]: Start isEmpty. Operand 30762 states and 68142 transitions. [2022-11-23 15:12:45,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:45,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:45,952 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] [2022-11-23 15:12:45,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-23 15:12:45,952 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash -608661700, now seen corresponding path program 36 times [2022-11-23 15:12:45,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:45,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839994730] [2022-11-23 15:12:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:47,505 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 15:12:47,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:47,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839994730] [2022-11-23 15:12:47,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839994730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:47,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:47,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:12:47,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310089547] [2022-11-23 15:12:47,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:47,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:12:47,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:12:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:12:47,507 INFO L87 Difference]: Start difference. First operand 30762 states and 68142 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:55,845 INFO L93 Difference]: Finished difference Result 35841 states and 78071 transitions. [2022-11-23 15:12:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:12:55,846 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:12:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:55,930 INFO L225 Difference]: With dead ends: 35841 [2022-11-23 15:12:55,930 INFO L226 Difference]: Without dead ends: 35841 [2022-11-23 15:12:55,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:12:55,931 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1083 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 6338 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 6383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 6338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:55,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2024 Invalid, 6383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 6338 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-23 15:12:55,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35841 states. [2022-11-23 15:12:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35841 to 30759. [2022-11-23 15:12:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30759 states, 30716 states have (on average 2.2181924729782523) internal successors, (68134), 30758 states have internal predecessors, (68134), 0 states have call successors, (0), 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 15:12:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30759 states to 30759 states and 68134 transitions. [2022-11-23 15:12:56,644 INFO L78 Accepts]: Start accepts. Automaton has 30759 states and 68134 transitions. Word has length 32 [2022-11-23 15:12:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:56,645 INFO L495 AbstractCegarLoop]: Abstraction has 30759 states and 68134 transitions. [2022-11-23 15:12:56,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:12:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 30759 states and 68134 transitions. [2022-11-23 15:12:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:12:56,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:56,651 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] [2022-11-23 15:12:56,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-23 15:12:56,651 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:12:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -293175010, now seen corresponding path program 37 times [2022-11-23 15:12:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:56,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288645708] [2022-11-23 15:12:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:58,241 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 15:12:58,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:58,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288645708] [2022-11-23 15:12:58,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288645708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:58,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:58,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:12:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479816383] [2022-11-23 15:12:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:58,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:12:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:12:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:12:58,243 INFO L87 Difference]: Start difference. First operand 30759 states and 68134 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:05,007 INFO L93 Difference]: Finished difference Result 35904 states and 78193 transitions. [2022-11-23 15:13:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:13:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:05,086 INFO L225 Difference]: With dead ends: 35904 [2022-11-23 15:13:05,087 INFO L226 Difference]: Without dead ends: 35904 [2022-11-23 15:13:05,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:13:05,087 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 991 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 5054 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 5097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 5054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:05,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 2002 Invalid, 5097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 5054 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 15:13:05,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35904 states. [2022-11-23 15:13:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35904 to 30756. [2022-11-23 15:13:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30756 states, 30713 states have (on average 2.218148666688373) internal successors, (68126), 30755 states have internal predecessors, (68126), 0 states have call successors, (0), 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 15:13:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30756 states to 30756 states and 68126 transitions. [2022-11-23 15:13:05,665 INFO L78 Accepts]: Start accepts. Automaton has 30756 states and 68126 transitions. Word has length 32 [2022-11-23 15:13:05,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:05,665 INFO L495 AbstractCegarLoop]: Abstraction has 30756 states and 68126 transitions. [2022-11-23 15:13:05,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 30756 states and 68126 transitions. [2022-11-23 15:13:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:05,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:05,672 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] [2022-11-23 15:13:05,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-23 15:13:05,672 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash -738249028, now seen corresponding path program 38 times [2022-11-23 15:13:05,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:05,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287654843] [2022-11-23 15:13:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:07,378 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 15:13:07,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:07,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287654843] [2022-11-23 15:13:07,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287654843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:07,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:07,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:13:07,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667445160] [2022-11-23 15:13:07,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:07,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:13:07,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:07,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:13:07,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:13:07,380 INFO L87 Difference]: Start difference. First operand 30756 states and 68126 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:14,116 INFO L93 Difference]: Finished difference Result 35918 states and 78219 transitions. [2022-11-23 15:13:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:13:14,116 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:14,205 INFO L225 Difference]: With dead ends: 35918 [2022-11-23 15:13:14,206 INFO L226 Difference]: Without dead ends: 35918 [2022-11-23 15:13:14,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:13:14,206 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 822 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 4504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:14,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 2113 Invalid, 4504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:13:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35918 states. [2022-11-23 15:13:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35918 to 30531. [2022-11-23 15:13:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30531 states, 30488 states have (on average 2.218774599842561) internal successors, (67646), 30530 states have internal predecessors, (67646), 0 states have call successors, (0), 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 15:13:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30531 states to 30531 states and 67646 transitions. [2022-11-23 15:13:14,925 INFO L78 Accepts]: Start accepts. Automaton has 30531 states and 67646 transitions. Word has length 32 [2022-11-23 15:13:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:14,925 INFO L495 AbstractCegarLoop]: Abstraction has 30531 states and 67646 transitions. [2022-11-23 15:13:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 30531 states and 67646 transitions. [2022-11-23 15:13:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:14,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:14,931 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] [2022-11-23 15:13:14,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-23 15:13:14,932 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash 811398290, now seen corresponding path program 21 times [2022-11-23 15:13:14,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:14,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078299199] [2022-11-23 15:13:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:14,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:16,169 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 15:13:16,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:16,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078299199] [2022-11-23 15:13:16,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078299199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:16,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:16,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:13:16,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502555825] [2022-11-23 15:13:16,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:16,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:13:16,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:13:16,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:13:16,170 INFO L87 Difference]: Start difference. First operand 30531 states and 67646 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:25,291 INFO L93 Difference]: Finished difference Result 47020 states and 102748 transitions. [2022-11-23 15:13:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 15:13:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:25,381 INFO L225 Difference]: With dead ends: 47020 [2022-11-23 15:13:25,381 INFO L226 Difference]: Without dead ends: 47013 [2022-11-23 15:13:25,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=740, Invalid=2230, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 15:13:25,382 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1191 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 5723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:25,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 1607 Invalid, 5723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 15:13:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47013 states. [2022-11-23 15:13:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47013 to 35396. [2022-11-23 15:13:25,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35396 states, 35353 states have (on average 2.2280711679348286) internal successors, (78769), 35395 states have internal predecessors, (78769), 0 states have call successors, (0), 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 15:13:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35396 states to 35396 states and 78769 transitions. [2022-11-23 15:13:26,015 INFO L78 Accepts]: Start accepts. Automaton has 35396 states and 78769 transitions. Word has length 32 [2022-11-23 15:13:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:26,015 INFO L495 AbstractCegarLoop]: Abstraction has 35396 states and 78769 transitions. [2022-11-23 15:13:26,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 35396 states and 78769 transitions. [2022-11-23 15:13:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:26,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:26,021 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] [2022-11-23 15:13:26,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-23 15:13:26,022 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2013552828, now seen corresponding path program 22 times [2022-11-23 15:13:26,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:26,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079489417] [2022-11-23 15:13:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:26,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:27,147 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 15:13:27,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:27,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079489417] [2022-11-23 15:13:27,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079489417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:27,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:27,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:13:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565887211] [2022-11-23 15:13:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:27,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:13:27,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:13:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:13:27,149 INFO L87 Difference]: Start difference. First operand 35396 states and 78769 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:34,520 INFO L93 Difference]: Finished difference Result 52563 states and 116158 transitions. [2022-11-23 15:13:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-23 15:13:34,521 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:34,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:34,642 INFO L225 Difference]: With dead ends: 52563 [2022-11-23 15:13:34,642 INFO L226 Difference]: Without dead ends: 52559 [2022-11-23 15:13:34,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=419, Invalid=987, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 15:13:34,643 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 850 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 4817 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 4817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:34,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 709 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 4817 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 15:13:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52559 states. [2022-11-23 15:13:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52559 to 36018. [2022-11-23 15:13:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 35975 states have (on average 2.2310215427380125) internal successors, (80261), 36017 states have internal predecessors, (80261), 0 states have call successors, (0), 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 15:13:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 80261 transitions. [2022-11-23 15:13:35,567 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 80261 transitions. Word has length 32 [2022-11-23 15:13:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:35,568 INFO L495 AbstractCegarLoop]: Abstraction has 36018 states and 80261 transitions. [2022-11-23 15:13:35,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 80261 transitions. [2022-11-23 15:13:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:35,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:35,575 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] [2022-11-23 15:13:35,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-23 15:13:35,575 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:35,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1103170412, now seen corresponding path program 23 times [2022-11-23 15:13:35,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:35,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891628105] [2022-11-23 15:13:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:35,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:36,872 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 15:13:36,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:36,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891628105] [2022-11-23 15:13:36,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891628105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:36,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:36,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:13:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062055022] [2022-11-23 15:13:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:36,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:13:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:13:36,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:13:36,874 INFO L87 Difference]: Start difference. First operand 36018 states and 80261 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:42,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:42,761 INFO L93 Difference]: Finished difference Result 46230 states and 101339 transitions. [2022-11-23 15:13:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:13:42,762 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:42,859 INFO L225 Difference]: With dead ends: 46230 [2022-11-23 15:13:42,859 INFO L226 Difference]: Without dead ends: 46226 [2022-11-23 15:13:42,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=355, Invalid=905, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:13:42,859 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1232 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:42,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 918 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 15:13:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46226 states. [2022-11-23 15:13:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46226 to 36905. [2022-11-23 15:13:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36905 states, 36862 states have (on average 2.232895664912376) internal successors, (82309), 36904 states have internal predecessors, (82309), 0 states have call successors, (0), 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 15:13:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36905 states to 36905 states and 82309 transitions. [2022-11-23 15:13:43,580 INFO L78 Accepts]: Start accepts. Automaton has 36905 states and 82309 transitions. Word has length 32 [2022-11-23 15:13:43,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:43,580 INFO L495 AbstractCegarLoop]: Abstraction has 36905 states and 82309 transitions. [2022-11-23 15:13:43,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:43,580 INFO L276 IsEmpty]: Start isEmpty. Operand 36905 states and 82309 transitions. [2022-11-23 15:13:43,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:43,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:43,587 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] [2022-11-23 15:13:43,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-23 15:13:43,587 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:43,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:43,587 INFO L85 PathProgramCache]: Analyzing trace with hash 938047768, now seen corresponding path program 39 times [2022-11-23 15:13:43,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:43,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950316689] [2022-11-23 15:13:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:43,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:45,380 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 15:13:45,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:45,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950316689] [2022-11-23 15:13:45,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950316689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:45,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:45,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:13:45,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963947170] [2022-11-23 15:13:45,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:45,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:13:45,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:13:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:13:45,383 INFO L87 Difference]: Start difference. First operand 36905 states and 82309 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:52,305 INFO L93 Difference]: Finished difference Result 43382 states and 95507 transitions. [2022-11-23 15:13:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:13:52,305 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:13:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:52,398 INFO L225 Difference]: With dead ends: 43382 [2022-11-23 15:13:52,398 INFO L226 Difference]: Without dead ends: 43382 [2022-11-23 15:13:52,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:13:52,399 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 877 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:52,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1556 Invalid, 5024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 15:13:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43382 states. [2022-11-23 15:13:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43382 to 36916. [2022-11-23 15:13:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36916 states, 36873 states have (on average 2.232853307298023) internal successors, (82332), 36915 states have internal predecessors, (82332), 0 states have call successors, (0), 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 15:13:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36916 states to 36916 states and 82332 transitions. [2022-11-23 15:13:53,261 INFO L78 Accepts]: Start accepts. Automaton has 36916 states and 82332 transitions. Word has length 32 [2022-11-23 15:13:53,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:53,261 INFO L495 AbstractCegarLoop]: Abstraction has 36916 states and 82332 transitions. [2022-11-23 15:13:53,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:13:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 36916 states and 82332 transitions. [2022-11-23 15:13:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:13:53,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:53,268 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] [2022-11-23 15:13:53,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-23 15:13:53,268 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:13:53,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:53,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1042067056, now seen corresponding path program 24 times [2022-11-23 15:13:53,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:13:53,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877498627] [2022-11-23 15:13:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:53,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:13:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:54,795 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 15:13:54,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:13:54,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877498627] [2022-11-23 15:13:54,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877498627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:54,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:54,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:13:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659839649] [2022-11-23 15:13:54,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:54,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:13:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:13:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:13:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:13:54,798 INFO L87 Difference]: Start difference. First operand 36916 states and 82332 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:00,833 INFO L93 Difference]: Finished difference Result 48264 states and 106113 transitions. [2022-11-23 15:14:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:14:00,834 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:00,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:00,935 INFO L225 Difference]: With dead ends: 48264 [2022-11-23 15:14:00,935 INFO L226 Difference]: Without dead ends: 48260 [2022-11-23 15:14:00,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=292, Invalid=764, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:14:00,936 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 926 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:00,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1201 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 15:14:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48260 states. [2022-11-23 15:14:01,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48260 to 38688. [2022-11-23 15:14:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38688 states, 38645 states have (on average 2.2370293699055503) internal successors, (86450), 38687 states have internal predecessors, (86450), 0 states have call successors, (0), 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 15:14:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38688 states to 38688 states and 86450 transitions. [2022-11-23 15:14:01,826 INFO L78 Accepts]: Start accepts. Automaton has 38688 states and 86450 transitions. Word has length 32 [2022-11-23 15:14:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:01,826 INFO L495 AbstractCegarLoop]: Abstraction has 38688 states and 86450 transitions. [2022-11-23 15:14:01,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:01,826 INFO L276 IsEmpty]: Start isEmpty. Operand 38688 states and 86450 transitions. [2022-11-23 15:14:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:01,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:01,834 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] [2022-11-23 15:14:01,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-23 15:14:01,834 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1403476228, now seen corresponding path program 40 times [2022-11-23 15:14:01,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:01,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618202865] [2022-11-23 15:14:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:04,010 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 15:14:04,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:04,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618202865] [2022-11-23 15:14:04,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618202865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:04,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:04,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967832612] [2022-11-23 15:14:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:04,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:04,012 INFO L87 Difference]: Start difference. First operand 38688 states and 86450 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:11,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:11,067 INFO L93 Difference]: Finished difference Result 44962 states and 99220 transitions. [2022-11-23 15:14:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:14:11,068 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:11,171 INFO L225 Difference]: With dead ends: 44962 [2022-11-23 15:14:11,171 INFO L226 Difference]: Without dead ends: 44962 [2022-11-23 15:14:11,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:14:11,172 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 854 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 5058 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:11,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1770 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 5058 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 15:14:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44962 states. [2022-11-23 15:14:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44962 to 38688. [2022-11-23 15:14:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38688 states, 38645 states have (on average 2.2370293699055503) internal successors, (86450), 38687 states have internal predecessors, (86450), 0 states have call successors, (0), 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 15:14:12,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38688 states to 38688 states and 86450 transitions. [2022-11-23 15:14:12,177 INFO L78 Accepts]: Start accepts. Automaton has 38688 states and 86450 transitions. Word has length 32 [2022-11-23 15:14:12,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:12,177 INFO L495 AbstractCegarLoop]: Abstraction has 38688 states and 86450 transitions. [2022-11-23 15:14:12,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:12,177 INFO L276 IsEmpty]: Start isEmpty. Operand 38688 states and 86450 transitions. [2022-11-23 15:14:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:12,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:12,186 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] [2022-11-23 15:14:12,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-23 15:14:12,186 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:12,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:12,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1621687846, now seen corresponding path program 25 times [2022-11-23 15:14:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:12,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668217416] [2022-11-23 15:14:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:12,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:13,175 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 15:14:13,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:13,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668217416] [2022-11-23 15:14:13,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668217416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:13,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:13,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135197994] [2022-11-23 15:14:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:13,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:13,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:13,177 INFO L87 Difference]: Start difference. First operand 38688 states and 86450 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:24,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:24,322 INFO L93 Difference]: Finished difference Result 55037 states and 120481 transitions. [2022-11-23 15:14:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-23 15:14:24,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:24,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:24,448 INFO L225 Difference]: With dead ends: 55037 [2022-11-23 15:14:24,448 INFO L226 Difference]: Without dead ends: 55030 [2022-11-23 15:14:24,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=951, Invalid=3209, Unknown=0, NotChecked=0, Total=4160 [2022-11-23 15:14:24,450 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1436 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 6087 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 6747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 6087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:24,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 2114 Invalid, 6747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [660 Valid, 6087 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 15:14:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55030 states. [2022-11-23 15:14:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55030 to 42557. [2022-11-23 15:14:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42557 states, 42514 states have (on average 2.236769064308228) internal successors, (95094), 42556 states have internal predecessors, (95094), 0 states have call successors, (0), 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 15:14:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42557 states to 42557 states and 95094 transitions. [2022-11-23 15:14:25,456 INFO L78 Accepts]: Start accepts. Automaton has 42557 states and 95094 transitions. Word has length 32 [2022-11-23 15:14:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:25,456 INFO L495 AbstractCegarLoop]: Abstraction has 42557 states and 95094 transitions. [2022-11-23 15:14:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 42557 states and 95094 transitions. [2022-11-23 15:14:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:25,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:25,464 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] [2022-11-23 15:14:25,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-23 15:14:25,465 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:25,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1741489806, now seen corresponding path program 41 times [2022-11-23 15:14:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:25,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925784981] [2022-11-23 15:14:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:27,323 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 15:14:27,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:27,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925784981] [2022-11-23 15:14:27,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925784981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:27,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:27,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:27,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571513876] [2022-11-23 15:14:27,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:27,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:27,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:27,325 INFO L87 Difference]: Start difference. First operand 42557 states and 95094 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:35,379 INFO L93 Difference]: Finished difference Result 48809 states and 107411 transitions. [2022-11-23 15:14:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:14:35,380 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:35,480 INFO L225 Difference]: With dead ends: 48809 [2022-11-23 15:14:35,480 INFO L226 Difference]: Without dead ends: 48809 [2022-11-23 15:14:35,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:14:35,481 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1195 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 5761 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 5816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 5761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:35,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2264 Invalid, 5816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 5761 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 15:14:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48809 states. [2022-11-23 15:14:36,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48809 to 42357. [2022-11-23 15:14:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42357 states, 42314 states have (on average 2.2367537930708514) internal successors, (94646), 42356 states have internal predecessors, (94646), 0 states have call successors, (0), 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 15:14:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42357 states to 42357 states and 94646 transitions. [2022-11-23 15:14:36,557 INFO L78 Accepts]: Start accepts. Automaton has 42357 states and 94646 transitions. Word has length 32 [2022-11-23 15:14:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:36,557 INFO L495 AbstractCegarLoop]: Abstraction has 42357 states and 94646 transitions. [2022-11-23 15:14:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:36,558 INFO L276 IsEmpty]: Start isEmpty. Operand 42357 states and 94646 transitions. [2022-11-23 15:14:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:36,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:36,566 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] [2022-11-23 15:14:36,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-23 15:14:36,567 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:36,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:36,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1615890356, now seen corresponding path program 42 times [2022-11-23 15:14:36,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:36,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459626137] [2022-11-23 15:14:36,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:38,118 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 15:14:38,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:38,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459626137] [2022-11-23 15:14:38,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459626137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:38,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:38,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:38,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34195116] [2022-11-23 15:14:38,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:38,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:38,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:38,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:38,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:38,120 INFO L87 Difference]: Start difference. First operand 42357 states and 94646 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:45,733 INFO L93 Difference]: Finished difference Result 48285 states and 106414 transitions. [2022-11-23 15:14:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:14:45,734 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:45,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:45,841 INFO L225 Difference]: With dead ends: 48285 [2022-11-23 15:14:45,841 INFO L226 Difference]: Without dead ends: 48285 [2022-11-23 15:14:45,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:14:45,842 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 976 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 5660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:45,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 2190 Invalid, 5660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 15:14:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48285 states. [2022-11-23 15:14:46,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48285 to 42354. [2022-11-23 15:14:46,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42354 states, 42311 states have (on average 2.23672331072298) internal successors, (94638), 42353 states have internal predecessors, (94638), 0 states have call successors, (0), 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 15:14:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42354 states to 42354 states and 94638 transitions. [2022-11-23 15:14:46,731 INFO L78 Accepts]: Start accepts. Automaton has 42354 states and 94638 transitions. Word has length 32 [2022-11-23 15:14:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:46,731 INFO L495 AbstractCegarLoop]: Abstraction has 42354 states and 94638 transitions. [2022-11-23 15:14:46,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 42354 states and 94638 transitions. [2022-11-23 15:14:46,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:46,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:46,738 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] [2022-11-23 15:14:46,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-23 15:14:46,738 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1300403666, now seen corresponding path program 43 times [2022-11-23 15:14:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:46,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413681053] [2022-11-23 15:14:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:46,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:48,245 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 15:14:48,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:48,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413681053] [2022-11-23 15:14:48,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413681053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:48,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:48,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:48,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459666738] [2022-11-23 15:14:48,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:48,248 INFO L87 Difference]: Start difference. First operand 42354 states and 94638 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:53,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:14:53,747 INFO L93 Difference]: Finished difference Result 48345 states and 106530 transitions. [2022-11-23 15:14:53,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:14:53,748 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:14:53,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:14:53,838 INFO L225 Difference]: With dead ends: 48345 [2022-11-23 15:14:53,838 INFO L226 Difference]: Without dead ends: 48345 [2022-11-23 15:14:53,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 15:14:53,839 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 991 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 4375 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:14:53,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 2049 Invalid, 4419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 4375 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 15:14:53,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48345 states. [2022-11-23 15:14:54,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48345 to 42351. [2022-11-23 15:14:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42351 states, 42308 states have (on average 2.236692824052189) internal successors, (94630), 42350 states have internal predecessors, (94630), 0 states have call successors, (0), 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 15:14:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42351 states to 42351 states and 94630 transitions. [2022-11-23 15:14:54,813 INFO L78 Accepts]: Start accepts. Automaton has 42351 states and 94630 transitions. Word has length 32 [2022-11-23 15:14:54,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:14:54,814 INFO L495 AbstractCegarLoop]: Abstraction has 42351 states and 94630 transitions. [2022-11-23 15:14:54,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:14:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 42351 states and 94630 transitions. [2022-11-23 15:14:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:14:54,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:14:54,820 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] [2022-11-23 15:14:54,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-23 15:14:54,821 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:14:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:14:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1745477684, now seen corresponding path program 44 times [2022-11-23 15:14:54,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:14:54,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623450143] [2022-11-23 15:14:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:14:54,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:14:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:14:56,268 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 15:14:56,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:14:56,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623450143] [2022-11-23 15:14:56,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623450143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:14:56,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:14:56,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:14:56,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796391452] [2022-11-23 15:14:56,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:14:56,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:14:56,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:14:56,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:14:56,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:14:56,269 INFO L87 Difference]: Start difference. First operand 42351 states and 94630 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:01,732 INFO L93 Difference]: Finished difference Result 48372 states and 106582 transitions. [2022-11-23 15:15:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:15:01,733 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:01,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:01,845 INFO L225 Difference]: With dead ends: 48372 [2022-11-23 15:15:01,845 INFO L226 Difference]: Without dead ends: 48372 [2022-11-23 15:15:01,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:15:01,846 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 935 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 4270 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 4322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:01,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 2046 Invalid, 4322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4270 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:15:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48372 states. [2022-11-23 15:15:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48372 to 39688. [2022-11-23 15:15:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39688 states, 39645 states have (on average 2.2364989279858745) internal successors, (88666), 39687 states have internal predecessors, (88666), 0 states have call successors, (0), 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 15:15:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39688 states to 39688 states and 88666 transitions. [2022-11-23 15:15:02,910 INFO L78 Accepts]: Start accepts. Automaton has 39688 states and 88666 transitions. Word has length 32 [2022-11-23 15:15:02,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:02,911 INFO L495 AbstractCegarLoop]: Abstraction has 39688 states and 88666 transitions. [2022-11-23 15:15:02,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 39688 states and 88666 transitions. [2022-11-23 15:15:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:02,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:02,920 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] [2022-11-23 15:15:02,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-23 15:15:02,920 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:02,921 INFO L85 PathProgramCache]: Analyzing trace with hash -195830366, now seen corresponding path program 26 times [2022-11-23 15:15:02,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:02,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030072565] [2022-11-23 15:15:02,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:02,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:04,194 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 15:15:04,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030072565] [2022-11-23 15:15:04,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030072565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:04,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:04,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:15:04,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622767274] [2022-11-23 15:15:04,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:04,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:15:04,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:04,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:15:04,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:15:04,196 INFO L87 Difference]: Start difference. First operand 39688 states and 88666 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:13,696 INFO L93 Difference]: Finished difference Result 56806 states and 125153 transitions. [2022-11-23 15:15:13,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 15:15:13,696 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:13,823 INFO L225 Difference]: With dead ends: 56806 [2022-11-23 15:15:13,823 INFO L226 Difference]: Without dead ends: 56799 [2022-11-23 15:15:13,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=740, Invalid=2230, Unknown=0, NotChecked=0, Total=2970 [2022-11-23 15:15:13,824 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1120 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 5753 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 5753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:13,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1675 Invalid, 6141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 5753 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-23 15:15:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56799 states. [2022-11-23 15:15:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56799 to 43340. [2022-11-23 15:15:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43340 states, 43297 states have (on average 2.241194540037416) internal successors, (97037), 43339 states have internal predecessors, (97037), 0 states have call successors, (0), 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 15:15:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43340 states to 43340 states and 97037 transitions. [2022-11-23 15:15:14,979 INFO L78 Accepts]: Start accepts. Automaton has 43340 states and 97037 transitions. Word has length 32 [2022-11-23 15:15:14,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:14,980 INFO L495 AbstractCegarLoop]: Abstraction has 43340 states and 97037 transitions. [2022-11-23 15:15:14,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 43340 states and 97037 transitions. [2022-11-23 15:15:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:14,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:14,987 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] [2022-11-23 15:15:14,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-23 15:15:14,987 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -315632326, now seen corresponding path program 45 times [2022-11-23 15:15:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:14,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037443741] [2022-11-23 15:15:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:14,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:16,868 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 15:15:16,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:16,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037443741] [2022-11-23 15:15:16,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037443741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:16,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:16,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:15:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048095435] [2022-11-23 15:15:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:16,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:15:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:15:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:15:16,870 INFO L87 Difference]: Start difference. First operand 43340 states and 97037 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:23,347 INFO L93 Difference]: Finished difference Result 51434 states and 113812 transitions. [2022-11-23 15:15:23,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:15:23,348 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:23,457 INFO L225 Difference]: With dead ends: 51434 [2022-11-23 15:15:23,457 INFO L226 Difference]: Without dead ends: 51434 [2022-11-23 15:15:23,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:15:23,458 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 952 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 4887 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:23,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 1904 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4887 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 15:15:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51434 states. [2022-11-23 15:15:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51434 to 44434. [2022-11-23 15:15:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44434 states, 44391 states have (on average 2.242323894483116) internal successors, (99539), 44433 states have internal predecessors, (99539), 0 states have call successors, (0), 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 15:15:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 99539 transitions. [2022-11-23 15:15:24,493 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 99539 transitions. Word has length 32 [2022-11-23 15:15:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:24,494 INFO L495 AbstractCegarLoop]: Abstraction has 44434 states and 99539 transitions. [2022-11-23 15:15:24,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:24,494 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 99539 transitions. [2022-11-23 15:15:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:24,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:24,501 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] [2022-11-23 15:15:24,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-23 15:15:24,502 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:24,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1274185812, now seen corresponding path program 27 times [2022-11-23 15:15:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:24,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205225447] [2022-11-23 15:15:24,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:24,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:25,777 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 15:15:25,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:25,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205225447] [2022-11-23 15:15:25,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205225447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:25,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:25,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:15:25,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406529163] [2022-11-23 15:15:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:25,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:15:25,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:15:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:15:25,779 INFO L87 Difference]: Start difference. First operand 44434 states and 99539 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:31,903 INFO L93 Difference]: Finished difference Result 63246 states and 140360 transitions. [2022-11-23 15:15:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-23 15:15:31,904 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:32,148 INFO L225 Difference]: With dead ends: 63246 [2022-11-23 15:15:32,148 INFO L226 Difference]: Without dead ends: 63242 [2022-11-23 15:15:32,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=419, Invalid=987, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 15:15:32,149 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1103 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 3853 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 3853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:32,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 762 Invalid, 4439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 3853 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 15:15:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63242 states. [2022-11-23 15:15:33,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63242 to 50041. [2022-11-23 15:15:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50041 states, 49998 states have (on average 2.2521500860034402) internal successors, (112603), 50040 states have internal predecessors, (112603), 0 states have call successors, (0), 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 15:15:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50041 states to 50041 states and 112603 transitions. [2022-11-23 15:15:33,266 INFO L78 Accepts]: Start accepts. Automaton has 50041 states and 112603 transitions. Word has length 32 [2022-11-23 15:15:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:33,267 INFO L495 AbstractCegarLoop]: Abstraction has 50041 states and 112603 transitions. [2022-11-23 15:15:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 50041 states and 112603 transitions. [2022-11-23 15:15:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:33,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:33,274 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] [2022-11-23 15:15:33,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-23 15:15:33,275 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash -979563304, now seen corresponding path program 46 times [2022-11-23 15:15:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:33,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125883859] [2022-11-23 15:15:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:33,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:34,925 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 15:15:34,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:34,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125883859] [2022-11-23 15:15:34,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125883859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:34,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:34,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:15:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587476782] [2022-11-23 15:15:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:34,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:15:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:15:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:15:34,927 INFO L87 Difference]: Start difference. First operand 50041 states and 112603 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:39,923 INFO L93 Difference]: Finished difference Result 59906 states and 133982 transitions. [2022-11-23 15:15:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:15:39,924 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:40,041 INFO L225 Difference]: With dead ends: 59906 [2022-11-23 15:15:40,041 INFO L226 Difference]: Without dead ends: 59906 [2022-11-23 15:15:40,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:15:40,042 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 619 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 5174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:40,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 1157 Invalid, 5174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 15:15:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59906 states. [2022-11-23 15:15:40,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59906 to 50427. [2022-11-23 15:15:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50427 states, 50384 states have (on average 2.2524610987615117) internal successors, (113488), 50426 states have internal predecessors, (113488), 0 states have call successors, (0), 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 15:15:41,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50427 states to 50427 states and 113488 transitions. [2022-11-23 15:15:41,074 INFO L78 Accepts]: Start accepts. Automaton has 50427 states and 113488 transitions. Word has length 32 [2022-11-23 15:15:41,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:41,075 INFO L495 AbstractCegarLoop]: Abstraction has 50427 states and 113488 transitions. [2022-11-23 15:15:41,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:41,075 INFO L276 IsEmpty]: Start isEmpty. Operand 50427 states and 113488 transitions. [2022-11-23 15:15:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:41,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:41,253 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] [2022-11-23 15:15:41,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-23 15:15:41,254 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash 850477204, now seen corresponding path program 28 times [2022-11-23 15:15:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:41,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346185473] [2022-11-23 15:15:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:41,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:42,627 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 15:15:42,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:42,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346185473] [2022-11-23 15:15:42,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346185473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:42,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:42,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 15:15:42,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924602294] [2022-11-23 15:15:42,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:42,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:15:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:15:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:15:42,629 INFO L87 Difference]: Start difference. First operand 50427 states and 113488 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:49,317 INFO L93 Difference]: Finished difference Result 75558 states and 169139 transitions. [2022-11-23 15:15:49,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-23 15:15:49,317 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:49,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:49,573 INFO L225 Difference]: With dead ends: 75558 [2022-11-23 15:15:49,573 INFO L226 Difference]: Without dead ends: 75554 [2022-11-23 15:15:49,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=517, Invalid=1205, Unknown=0, NotChecked=0, Total=1722 [2022-11-23 15:15:49,573 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 822 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 4055 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 4447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 4055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:49,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 738 Invalid, 4447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 4055 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:15:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75554 states. [2022-11-23 15:15:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75554 to 50313. [2022-11-23 15:15:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50313 states, 50270 states have (on average 2.2526158742788938) internal successors, (113239), 50312 states have internal predecessors, (113239), 0 states have call successors, (0), 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 15:15:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50313 states to 50313 states and 113239 transitions. [2022-11-23 15:15:50,676 INFO L78 Accepts]: Start accepts. Automaton has 50313 states and 113239 transitions. Word has length 32 [2022-11-23 15:15:50,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:15:50,677 INFO L495 AbstractCegarLoop]: Abstraction has 50313 states and 113239 transitions. [2022-11-23 15:15:50,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 50313 states and 113239 transitions. [2022-11-23 15:15:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:15:50,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:15:50,686 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] [2022-11-23 15:15:50,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-23 15:15:50,687 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:15:50,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:15:50,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1403271912, now seen corresponding path program 47 times [2022-11-23 15:15:50,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:15:50,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521197658] [2022-11-23 15:15:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:15:50,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:15:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:15:52,184 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 15:15:52,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:15:52,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521197658] [2022-11-23 15:15:52,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521197658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:15:52,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:15:52,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:15:52,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844617256] [2022-11-23 15:15:52,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:15:52,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:15:52,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:15:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:15:52,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:15:52,185 INFO L87 Difference]: Start difference. First operand 50313 states and 113239 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:15:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:15:59,532 INFO L93 Difference]: Finished difference Result 64651 states and 144871 transitions. [2022-11-23 15:15:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:15:59,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-23 15:15:59,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:15:59,673 INFO L225 Difference]: With dead ends: 64651 [2022-11-23 15:15:59,673 INFO L226 Difference]: Without dead ends: 64651 [2022-11-23 15:15:59,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:15:59,674 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 909 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 6102 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 6195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 6102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:15:59,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1382 Invalid, 6195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 6102 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:15:59,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64651 states. [2022-11-23 15:16:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64651 to 50932. [2022-11-23 15:16:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50932 states, 50889 states have (on average 2.253885908546051) internal successors, (114698), 50931 states have internal predecessors, (114698), 0 states have call successors, (0), 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 15:16:00,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50932 states to 50932 states and 114698 transitions. [2022-11-23 15:16:00,760 INFO L78 Accepts]: Start accepts. Automaton has 50932 states and 114698 transitions. Word has length 32 [2022-11-23 15:16:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:16:00,760 INFO L495 AbstractCegarLoop]: Abstraction has 50932 states and 114698 transitions. [2022-11-23 15:16:00,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 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 15:16:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 50932 states and 114698 transitions. [2022-11-23 15:16:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:16:00,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:00,767 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] [2022-11-23 15:16:00,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-23 15:16:00,767 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:16:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:00,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1377944511, now seen corresponding path program 1 times [2022-11-23 15:16:00,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:00,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359192133] [2022-11-23 15:16:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:00,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:02,252 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 15:16:02,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:02,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359192133] [2022-11-23 15:16:02,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359192133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:02,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:02,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:16:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427286036] [2022-11-23 15:16:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:02,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:16:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:16:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:16:02,255 INFO L87 Difference]: Start difference. First operand 50932 states and 114698 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:16:09,258 INFO L93 Difference]: Finished difference Result 65006 states and 144907 transitions. [2022-11-23 15:16:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:16:09,258 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-23 15:16:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:16:09,397 INFO L225 Difference]: With dead ends: 65006 [2022-11-23 15:16:09,397 INFO L226 Difference]: Without dead ends: 65006 [2022-11-23 15:16:09,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:16:09,398 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1002 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 5459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:16:09,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1273 Invalid, 5459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 15:16:09,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65006 states. [2022-11-23 15:16:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65006 to 52128. [2022-11-23 15:16:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52128 states, 52085 states have (on average 2.253259095708937) internal successors, (117361), 52127 states have internal predecessors, (117361), 0 states have call successors, (0), 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 15:16:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52128 states to 52128 states and 117361 transitions. [2022-11-23 15:16:10,734 INFO L78 Accepts]: Start accepts. Automaton has 52128 states and 117361 transitions. Word has length 33 [2022-11-23 15:16:10,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:16:10,735 INFO L495 AbstractCegarLoop]: Abstraction has 52128 states and 117361 transitions. [2022-11-23 15:16:10,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 52128 states and 117361 transitions. [2022-11-23 15:16:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:16:10,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:10,744 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] [2022-11-23 15:16:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-23 15:16:10,745 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:16:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash -839170717, now seen corresponding path program 2 times [2022-11-23 15:16:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:10,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752197236] [2022-11-23 15:16:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:16:12,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:12,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752197236] [2022-11-23 15:16:12,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752197236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:12,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:12,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:16:12,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889228599] [2022-11-23 15:16:12,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:12,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:16:12,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:12,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:16:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:16:12,464 INFO L87 Difference]: Start difference. First operand 52128 states and 117361 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:19,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:16:19,056 INFO L93 Difference]: Finished difference Result 66340 states and 147993 transitions. [2022-11-23 15:16:19,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:16:19,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-23 15:16:19,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:16:19,196 INFO L225 Difference]: With dead ends: 66340 [2022-11-23 15:16:19,197 INFO L226 Difference]: Without dead ends: 66340 [2022-11-23 15:16:19,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:16:19,197 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 891 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 4990 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:16:19,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 1561 Invalid, 5075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4990 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 15:16:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66340 states. [2022-11-23 15:16:20,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66340 to 53876. [2022-11-23 15:16:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53876 states, 53833 states have (on average 2.2555867218992067) internal successors, (121425), 53875 states have internal predecessors, (121425), 0 states have call successors, (0), 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 15:16:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53876 states to 53876 states and 121425 transitions. [2022-11-23 15:16:20,463 INFO L78 Accepts]: Start accepts. Automaton has 53876 states and 121425 transitions. Word has length 33 [2022-11-23 15:16:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:16:20,463 INFO L495 AbstractCegarLoop]: Abstraction has 53876 states and 121425 transitions. [2022-11-23 15:16:20,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 53876 states and 121425 transitions. [2022-11-23 15:16:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:16:20,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:20,471 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] [2022-11-23 15:16:20,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-23 15:16:20,471 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:16:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:20,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1811194055, now seen corresponding path program 3 times [2022-11-23 15:16:20,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:20,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481510173] [2022-11-23 15:16:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:22,139 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 15:16:22,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:22,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481510173] [2022-11-23 15:16:22,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481510173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:22,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:22,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:16:22,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320500093] [2022-11-23 15:16:22,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:22,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:16:22,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:22,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:16:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:16:22,142 INFO L87 Difference]: Start difference. First operand 53876 states and 121425 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:29,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:16:29,398 INFO L93 Difference]: Finished difference Result 66709 states and 148443 transitions. [2022-11-23 15:16:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 15:16:29,398 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-23 15:16:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:16:29,554 INFO L225 Difference]: With dead ends: 66709 [2022-11-23 15:16:29,554 INFO L226 Difference]: Without dead ends: 66709 [2022-11-23 15:16:29,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:16:29,555 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1248 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 4690 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 4839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 4690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:16:29,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 1892 Invalid, 4839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 4690 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 15:16:29,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66709 states. [2022-11-23 15:16:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66709 to 52654. [2022-11-23 15:16:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52654 states, 52611 states have (on average 2.2579498583946322) internal successors, (118793), 52653 states have internal predecessors, (118793), 0 states have call successors, (0), 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 15:16:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52654 states to 52654 states and 118793 transitions. [2022-11-23 15:16:31,199 INFO L78 Accepts]: Start accepts. Automaton has 52654 states and 118793 transitions. Word has length 33 [2022-11-23 15:16:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:16:31,200 INFO L495 AbstractCegarLoop]: Abstraction has 52654 states and 118793 transitions. [2022-11-23 15:16:31,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 52654 states and 118793 transitions. [2022-11-23 15:16:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:16:31,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:31,210 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] [2022-11-23 15:16:31,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-23 15:16:31,210 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:16:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1430019047, now seen corresponding path program 4 times [2022-11-23 15:16:31,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:31,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781691639] [2022-11-23 15:16:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:31,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:32,980 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 15:16:32,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781691639] [2022-11-23 15:16:32,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781691639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:32,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:32,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:16:32,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555275139] [2022-11-23 15:16:32,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:32,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:16:32,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:16:32,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:16:32,982 INFO L87 Difference]: Start difference. First operand 52654 states and 118793 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:16:40,533 INFO L93 Difference]: Finished difference Result 61527 states and 136969 transitions. [2022-11-23 15:16:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:16:40,534 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-23 15:16:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:16:40,666 INFO L225 Difference]: With dead ends: 61527 [2022-11-23 15:16:40,666 INFO L226 Difference]: Without dead ends: 61527 [2022-11-23 15:16:40,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 15:16:40,666 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1124 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 5278 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 5364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 5278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:16:40,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1703 Invalid, 5364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 5278 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-23 15:16:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61527 states. [2022-11-23 15:16:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61527 to 52656. [2022-11-23 15:16:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52656 states, 52613 states have (on average 2.2579020394199154) internal successors, (118795), 52655 states have internal predecessors, (118795), 0 states have call successors, (0), 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 15:16:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52656 states to 52656 states and 118795 transitions. [2022-11-23 15:16:41,768 INFO L78 Accepts]: Start accepts. Automaton has 52656 states and 118795 transitions. Word has length 33 [2022-11-23 15:16:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:16:41,768 INFO L495 AbstractCegarLoop]: Abstraction has 52656 states and 118795 transitions. [2022-11-23 15:16:41,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 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 15:16:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 52656 states and 118795 transitions. [2022-11-23 15:16:41,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:16:41,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:16:41,775 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] [2022-11-23 15:16:41,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-23 15:16:41,776 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-23 15:16:41,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:16:41,776 INFO L85 PathProgramCache]: Analyzing trace with hash -239866249, now seen corresponding path program 5 times [2022-11-23 15:16:41,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:16:41,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932339242] [2022-11-23 15:16:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:16:41,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:16:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:16:44,121 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 15:16:44,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:16:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932339242] [2022-11-23 15:16:44,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932339242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:16:44,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:16:44,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 15:16:44,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409926010] [2022-11-23 15:16:44,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:16:44,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:16:44,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:16:44,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:16:44,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:16:44,123 INFO L87 Difference]: Start difference. First operand 52656 states and 118795 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)