./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-03 03:27:11,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:27:11,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:27:11,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:27:11,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:27:11,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:27:11,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:27:11,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:27:11,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:27:11,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:27:11,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:27:11,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:27:11,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:27:11,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:27:11,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:27:11,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:27:11,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:27:11,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:27:11,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:27:11,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:27:11,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:27:11,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:27:11,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:27:11,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:27:11,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:27:11,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:27:11,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:27:11,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:27:11,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:27:11,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:27:11,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:27:11,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:27:11,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:27:11,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:27:11,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:27:11,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:27:11,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:27:11,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:27:11,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:27:11,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:27:11,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:27:11,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:27:11,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:27:11,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:27:11,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:27:11,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:27:11,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:27:11,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:27:11,753 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:27:11,753 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:27:11,753 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:27:11,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:27:11,755 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:27:11,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:27:11,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:27:11,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:27:11,756 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:27:11,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:27:11,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:27:11,757 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:27:11,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:27:11,759 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:27:11,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:27:11,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:27:11,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:27:11,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:27:11,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:27:11,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:27:11,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:27:11,761 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:27:11,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:27:11,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:27:11,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:27:11,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:27:11,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:27:11,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:27:11,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:27:11,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:27:11,764 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:27:11,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:27:11,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:27:11,766 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:27:11,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:27:11,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:27:11,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:27:11,767 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_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-11-03 03:27:12,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:27:12,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:27:12,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:27:12,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:27:12,142 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:27:12,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-03 03:27:12,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/data/339c4d100/4bcde310a9f641a6960530df5f3c9213/FLAG4b50866ea [2022-11-03 03:27:13,021 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:27:13,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2022-11-03 03:27:13,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/data/339c4d100/4bcde310a9f641a6960530df5f3c9213/FLAG4b50866ea [2022-11-03 03:27:13,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/data/339c4d100/4bcde310a9f641a6960530df5f3c9213 [2022-11-03 03:27:13,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:27:13,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:27:13,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:27:13,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:27:13,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:27:13,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:27:13" (1/1) ... [2022-11-03 03:27:13,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b29171d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:13, skipping insertion in model container [2022-11-03 03:27:13,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:27:13" (1/1) ... [2022-11-03 03:27:13,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:27:13,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:27:13,541 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 03:27:13,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-03 03:27:13,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-03 03:27:13,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-03 03:27:13,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:27:13,929 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:27:13,945 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 03:27:13,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39095,39108] [2022-11-03 03:27:13,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39180,39193] [2022-11-03 03:27:13,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i[39232,39245] [2022-11-03 03:27:14,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:27:14,059 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:27:14,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14 WrapperNode [2022-11-03 03:27:14,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:27:14,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:27:14,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:27:14,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:27:14,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,144 INFO L138 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-11-03 03:27:14,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:27:14,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:27:14,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:27:14,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:27:14,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:27:14,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:27:14,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:27:14,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:27:14,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (1/1) ... [2022-11-03 03:27:14,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:27:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:27:14,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:27:14,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80178010-b177-449d-9f6e-301f7aa9e75b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:27:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-11-03 03:27:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-11-03 03:27:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:27:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:27:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:27:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:27:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:27:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:27:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:27:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:27:14,338 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:27:14,534 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:27:14,537 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:27:15,366 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:27:15,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:27:15,379 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:27:15,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:27:15 BoogieIcfgContainer [2022-11-03 03:27:15,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:27:15,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:27:15,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:27:15,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:27:15,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:27:13" (1/3) ... [2022-11-03 03:27:15,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8963aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:27:15, skipping insertion in model container [2022-11-03 03:27:15,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:14" (2/3) ... [2022-11-03 03:27:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8963aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:27:15, skipping insertion in model container [2022-11-03 03:27:15,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:27:15" (3/3) ... [2022-11-03 03:27:15,406 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-11-03 03:27:15,417 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:27:15,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:27:15,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-03 03:27:15,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:27:15,632 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 03:27:15,691 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:27:15,712 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-03 03:27:15,724 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 267 transitions, 542 flow [2022-11-03 03:27:15,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 267 transitions, 542 flow [2022-11-03 03:27:15,900 INFO L130 PetriNetUnfolder]: 10/266 cut-off events. [2022-11-03 03:27:15,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 03:27:15,914 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 537 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. [2022-11-03 03:27:15,931 INFO L118 LiptonReduction]: Number of co-enabled transitions 21228 [2022-11-03 03:27:31,903 INFO L133 LiptonReduction]: Checked pairs total: 137215 [2022-11-03 03:27:31,904 INFO L135 LiptonReduction]: Total number of compositions: 176 [2022-11-03 03:27:31,919 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 120 transitions, 248 flow [2022-11-03 03:27:32,059 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) [2022-11-03 03:27:32,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:27:32,091 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;@4f053fca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:27:32,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-03 03:27:32,103 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) [2022-11-03 03:27:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 03:27:32,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:32,110 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 03:27:32,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:32,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:32,118 INFO L85 PathProgramCache]: Analyzing trace with hash 908, now seen corresponding path program 1 times [2022-11-03 03:27:32,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:32,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329979549] [2022-11-03 03:27:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:32,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:32,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329979549] [2022-11-03 03:27:32,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329979549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:32,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:32,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 03:27:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165939573] [2022-11-03 03:27:32,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:32,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:27:32,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:27:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:27:32,321 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) [2022-11-03 03:27:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:32,484 INFO L93 Difference]: Finished difference Result 2959 states and 6025 transitions. [2022-11-03 03:27:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:27:32,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-03 03:27:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:32,529 INFO L225 Difference]: With dead ends: 2959 [2022-11-03 03:27:32,530 INFO L226 Difference]: Without dead ends: 2959 [2022-11-03 03:27:32,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:27:32,536 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:27:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-11-03 03:27:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2959. [2022-11-03 03:27:32,782 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) [2022-11-03 03:27:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 6025 transitions. [2022-11-03 03:27:32,801 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 6025 transitions. Word has length 1 [2022-11-03 03:27:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:32,806 INFO L495 AbstractCegarLoop]: Abstraction has 2959 states and 6025 transitions. [2022-11-03 03:27:32,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:32,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 6025 transitions. [2022-11-03 03:27:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:27:32,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:32,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:32,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:27:32,812 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)] === [2022-11-03 03:27:32,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:32,813 INFO L85 PathProgramCache]: Analyzing trace with hash 136171045, now seen corresponding path program 1 times [2022-11-03 03:27:32,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:32,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424586073] [2022-11-03 03:27:32,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:32,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:33,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424586073] [2022-11-03 03:27:33,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424586073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:33,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:33,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:27:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431408829] [2022-11-03 03:27:33,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:33,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:27:33,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:27:33,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:27:33,079 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) [2022-11-03 03:27:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:33,208 INFO L93 Difference]: Finished difference Result 5453 states and 11114 transitions. [2022-11-03 03:27:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:27:33,209 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 [2022-11-03 03:27:33,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:33,238 INFO L225 Difference]: With dead ends: 5453 [2022-11-03 03:27:33,239 INFO L226 Difference]: Without dead ends: 5453 [2022-11-03 03:27:33,239 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 [2022-11-03 03:27:33,241 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 102 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:33,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 228 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:27:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-11-03 03:27:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 3017. [2022-11-03 03:27:33,355 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) [2022-11-03 03:27:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 6142 transitions. [2022-11-03 03:27:33,370 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 6142 transitions. Word has length 9 [2022-11-03 03:27:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:33,370 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 6142 transitions. [2022-11-03 03:27:33,371 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) [2022-11-03 03:27:33,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 6142 transitions. [2022-11-03 03:27:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:27:33,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:33,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:33,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:27:33,373 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2367628, now seen corresponding path program 1 times [2022-11-03 03:27:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:33,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394148128] [2022-11-03 03:27:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:33,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:33,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:33,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394148128] [2022-11-03 03:27:33,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394148128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:33,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:33,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:33,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860923756] [2022-11-03 03:27:33,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:33,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:33,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:33,888 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) [2022-11-03 03:27:35,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:35,171 INFO L93 Difference]: Finished difference Result 4900 states and 9998 transitions. [2022-11-03 03:27:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:35,172 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 [2022-11-03 03:27:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:35,201 INFO L225 Difference]: With dead ends: 4900 [2022-11-03 03:27:35,201 INFO L226 Difference]: Without dead ends: 4900 [2022-11-03 03:27:35,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:35,203 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 141 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:35,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 113 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 03:27:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4900 states. [2022-11-03 03:27:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4900 to 3698. [2022-11-03 03:27:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3627 states have (on average 2.0722360077198787) internal successors, (7516), 3697 states have internal predecessors, (7516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 7516 transitions. [2022-11-03 03:27:35,340 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 7516 transitions. Word has length 10 [2022-11-03 03:27:35,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:35,340 INFO L495 AbstractCegarLoop]: Abstraction has 3698 states and 7516 transitions. [2022-11-03 03:27:35,341 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) [2022-11-03 03:27:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 7516 transitions. [2022-11-03 03:27:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:27:35,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:35,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:35,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:27:35,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:35,344 INFO L85 PathProgramCache]: Analyzing trace with hash -556428417, now seen corresponding path program 1 times [2022-11-03 03:27:35,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:35,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921670034] [2022-11-03 03:27:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:35,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:35,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:35,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921670034] [2022-11-03 03:27:35,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921670034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:35,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:35,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:35,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222334482] [2022-11-03 03:27:35,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:35,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:35,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:35,717 INFO L87 Difference]: Start difference. First operand 3698 states and 7516 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) [2022-11-03 03:27:36,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:36,852 INFO L93 Difference]: Finished difference Result 5889 states and 12009 transitions. [2022-11-03 03:27:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:36,853 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 [2022-11-03 03:27:36,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:36,889 INFO L225 Difference]: With dead ends: 5889 [2022-11-03 03:27:36,889 INFO L226 Difference]: Without dead ends: 5889 [2022-11-03 03:27:36,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:36,891 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 134 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:36,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 99 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 03:27:36,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2022-11-03 03:27:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 4040. [2022-11-03 03:27:37,076 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) [2022-11-03 03:27:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 8208 transitions. [2022-11-03 03:27:37,095 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 8208 transitions. Word has length 10 [2022-11-03 03:27:37,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:37,096 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 8208 transitions. [2022-11-03 03:27:37,096 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) [2022-11-03 03:27:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 8208 transitions. [2022-11-03 03:27:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:27:37,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:37,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:37,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:27:37,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1705155196, now seen corresponding path program 1 times [2022-11-03 03:27:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:37,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609798467] [2022-11-03 03:27:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:37,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:37,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:37,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609798467] [2022-11-03 03:27:37,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609798467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:37,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:37,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:37,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370704418] [2022-11-03 03:27:37,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:37,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:37,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:37,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:37,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:37,431 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) [2022-11-03 03:27:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:38,367 INFO L93 Difference]: Finished difference Result 5415 states and 11036 transitions. [2022-11-03 03:27:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:38,368 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 [2022-11-03 03:27:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:38,393 INFO L225 Difference]: With dead ends: 5415 [2022-11-03 03:27:38,393 INFO L226 Difference]: Without dead ends: 5415 [2022-11-03 03:27:38,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:38,394 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 140 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:38,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 120 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 03:27:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2022-11-03 03:27:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 4249. [2022-11-03 03:27:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 4186 states have (on average 2.0747730530339226) internal successors, (8685), 4248 states have internal predecessors, (8685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 8685 transitions. [2022-11-03 03:27:38,537 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 8685 transitions. Word has length 16 [2022-11-03 03:27:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:38,537 INFO L495 AbstractCegarLoop]: Abstraction has 4249 states and 8685 transitions. [2022-11-03 03:27:38,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 8685 transitions. [2022-11-03 03:27:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:27:38,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:38,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:38,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:27:38,540 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:38,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:38,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1840407834, now seen corresponding path program 1 times [2022-11-03 03:27:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:38,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952018883] [2022-11-03 03:27:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:38,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:38,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952018883] [2022-11-03 03:27:38,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952018883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:38,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:38,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:38,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140013837] [2022-11-03 03:27:38,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:38,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:38,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:38,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:38,848 INFO L87 Difference]: Start difference. First operand 4249 states and 8685 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:39,912 INFO L93 Difference]: Finished difference Result 5744 states and 11775 transitions. [2022-11-03 03:27:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:39,913 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 [2022-11-03 03:27:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:39,929 INFO L225 Difference]: With dead ends: 5744 [2022-11-03 03:27:39,930 INFO L226 Difference]: Without dead ends: 5733 [2022-11-03 03:27:39,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:39,931 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 122 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:39,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 113 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 03:27:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2022-11-03 03:27:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 4562. [2022-11-03 03:27:40,067 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) [2022-11-03 03:27:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 9361 transitions. [2022-11-03 03:27:40,083 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 9361 transitions. Word has length 16 [2022-11-03 03:27:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:40,084 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 9361 transitions. [2022-11-03 03:27:40,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:40,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 9361 transitions. [2022-11-03 03:27:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 03:27:40,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:40,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:27:40,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:27:40,089 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)] === [2022-11-03 03:27:40,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:40,090 INFO L85 PathProgramCache]: Analyzing trace with hash 644723549, now seen corresponding path program 1 times [2022-11-03 03:27:40,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:40,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935509741] [2022-11-03 03:27:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:40,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935509741] [2022-11-03 03:27:40,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935509741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:40,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:40,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:40,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681627823] [2022-11-03 03:27:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:40,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:40,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:40,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:40,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:40,512 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) [2022-11-03 03:27:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:41,403 INFO L93 Difference]: Finished difference Result 5530 states and 11317 transitions. [2022-11-03 03:27:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:41,404 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 [2022-11-03 03:27:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:41,423 INFO L225 Difference]: With dead ends: 5530 [2022-11-03 03:27:41,423 INFO L226 Difference]: Without dead ends: 5530 [2022-11-03 03:27:41,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:41,425 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 117 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:41,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 113 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:27:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-11-03 03:27:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4886. [2022-11-03 03:27:41,548 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) [2022-11-03 03:27:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 10015 transitions. [2022-11-03 03:27:41,565 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 10015 transitions. Word has length 22 [2022-11-03 03:27:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:41,566 INFO L495 AbstractCegarLoop]: Abstraction has 4886 states and 10015 transitions. [2022-11-03 03:27:41,566 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) [2022-11-03 03:27:41,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 10015 transitions. [2022-11-03 03:27:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 03:27:41,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:41,569 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] [2022-11-03 03:27:41,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:27:41,569 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 510842185, now seen corresponding path program 1 times [2022-11-03 03:27:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:41,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263836767] [2022-11-03 03:27:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:42,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:42,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263836767] [2022-11-03 03:27:42,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263836767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:42,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:42,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:42,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006885921] [2022-11-03 03:27:42,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:42,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:42,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:42,007 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) [2022-11-03 03:27:42,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:42,995 INFO L93 Difference]: Finished difference Result 5107 states and 10461 transitions. [2022-11-03 03:27:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:42,996 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 [2022-11-03 03:27:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:43,013 INFO L225 Difference]: With dead ends: 5107 [2022-11-03 03:27:43,013 INFO L226 Difference]: Without dead ends: 5107 [2022-11-03 03:27:43,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:43,015 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:43,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 135 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 03:27:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2022-11-03 03:27:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5107. [2022-11-03 03:27:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5060 states have (on average 2.0673913043478263) internal successors, (10461), 5106 states have internal predecessors, (10461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 10461 transitions. [2022-11-03 03:27:43,137 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 10461 transitions. Word has length 28 [2022-11-03 03:27:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:43,137 INFO L495 AbstractCegarLoop]: Abstraction has 5107 states and 10461 transitions. [2022-11-03 03:27:43,137 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) [2022-11-03 03:27:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 10461 transitions. [2022-11-03 03:27:43,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 03:27:43,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:43,140 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] [2022-11-03 03:27:43,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:27:43,141 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:27:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash -641232511, now seen corresponding path program 1 times [2022-11-03 03:27:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:43,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612368154] [2022-11-03 03:27:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:43,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:43,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612368154] [2022-11-03 03:27:43,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612368154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:43,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:43,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:27:43,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420626630] [2022-11-03 03:27:43,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:43,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:27:43,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:43,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:27:43,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:43,611 INFO L87 Difference]: Start difference. First operand 5107 states and 10461 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) [2022-11-03 03:27:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:44,529 INFO L93 Difference]: Finished difference Result 5317 states and 10885 transitions. [2022-11-03 03:27:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:27:44,530 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 [2022-11-03 03:27:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:44,547 INFO L225 Difference]: With dead ends: 5317 [2022-11-03 03:27:44,548 INFO L226 Difference]: Without dead ends: 5317 [2022-11-03 03:27:44,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:27:44,549 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 98 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:44,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 133 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 03:27:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2022-11-03 03:27:44,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 5268. [2022-11-03 03:27:44,657 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) [2022-11-03 03:27:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 10786 transitions. [2022-11-03 03:27:44,673 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 10786 transitions. Word has length 28 [2022-11-03 03:27:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:44,673 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 10786 transitions. [2022-11-03 03:27:44,674 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) [2022-11-03 03:27:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 10786 transitions. [2022-11-03 03:27:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:27:44,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:44,677 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] [2022-11-03 03:27:44,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:27:44,677 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)] === [2022-11-03 03:27:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash -705548262, now seen corresponding path program 1 times [2022-11-03 03:27:44,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:44,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102220574] [2022-11-03 03:27:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:47,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:47,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102220574] [2022-11-03 03:27:47,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102220574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:47,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:47,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:27:47,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575270255] [2022-11-03 03:27:47,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:47,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:27:47,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:47,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:27:47,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:27:47,263 INFO L87 Difference]: Start difference. First operand 5268 states and 10786 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) [2022-11-03 03:27:53,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:27:53,712 INFO L93 Difference]: Finished difference Result 11135 states and 22851 transitions. [2022-11-03 03:27:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 03:27:53,713 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 [2022-11-03 03:27:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:27:53,742 INFO L225 Difference]: With dead ends: 11135 [2022-11-03 03:27:53,742 INFO L226 Difference]: Without dead ends: 11131 [2022-11-03 03:27:53,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=468, Invalid=1092, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 03:27:53,743 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 689 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:27:53,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 491 Invalid, 3815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:27:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11131 states. [2022-11-03 03:27:53,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11131 to 6131. [2022-11-03 03:27:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6131 states, 6088 states have (on average 2.0957621550591328) internal successors, (12759), 6130 states have internal predecessors, (12759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:27:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6131 states to 6131 states and 12759 transitions. [2022-11-03 03:27:53,940 INFO L78 Accepts]: Start accepts. Automaton has 6131 states and 12759 transitions. Word has length 32 [2022-11-03 03:27:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:27:53,940 INFO L495 AbstractCegarLoop]: Abstraction has 6131 states and 12759 transitions. [2022-11-03 03:27:53,940 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) [2022-11-03 03:27:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 6131 states and 12759 transitions. [2022-11-03 03:27:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:27:53,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:27:53,947 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] [2022-11-03 03:27:53,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 03:27:53,948 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)] === [2022-11-03 03:27:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:27:53,949 INFO L85 PathProgramCache]: Analyzing trace with hash 113465098, now seen corresponding path program 1 times [2022-11-03 03:27:53,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:27:53,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966948174] [2022-11-03 03:27:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:27:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:27:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:27:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:27:56,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:27:56,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966948174] [2022-11-03 03:27:56,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966948174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:27:56,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:27:56,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:27:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064459176] [2022-11-03 03:27:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:27:56,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:27:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:27:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:27:56,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:27:56,321 INFO L87 Difference]: Start difference. First operand 6131 states and 12759 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) [2022-11-03 03:28:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:01,491 INFO L93 Difference]: Finished difference Result 10897 states and 22391 transitions. [2022-11-03 03:28:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:28:01,492 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 [2022-11-03 03:28:01,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:01,516 INFO L225 Difference]: With dead ends: 10897 [2022-11-03 03:28:01,516 INFO L226 Difference]: Without dead ends: 10897 [2022-11-03 03:28:01,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:28:01,518 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 934 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:01,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 927 Invalid, 3344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:28:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-11-03 03:28:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 6446. [2022-11-03 03:28:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6403 states have (on average 2.0957363735748866) internal successors, (13419), 6445 states have internal predecessors, (13419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:01,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 13419 transitions. [2022-11-03 03:28:01,717 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 13419 transitions. Word has length 32 [2022-11-03 03:28:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:01,717 INFO L495 AbstractCegarLoop]: Abstraction has 6446 states and 13419 transitions. [2022-11-03 03:28:01,717 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) [2022-11-03 03:28:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 13419 transitions. [2022-11-03 03:28:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:01,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:01,721 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] [2022-11-03 03:28:01,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 03:28:01,722 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)] === [2022-11-03 03:28:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash 397752078, now seen corresponding path program 2 times [2022-11-03 03:28:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:01,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458957110] [2022-11-03 03:28:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:01,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:03,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:03,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458957110] [2022-11-03 03:28:03,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458957110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:03,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:03,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:28:03,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233957583] [2022-11-03 03:28:03,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:03,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:28:03,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:03,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:28:03,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:03,943 INFO L87 Difference]: Start difference. First operand 6446 states and 13419 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) [2022-11-03 03:28:10,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:10,200 INFO L93 Difference]: Finished difference Result 18834 states and 39337 transitions. [2022-11-03 03:28:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:28:10,201 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 [2022-11-03 03:28:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:10,234 INFO L225 Difference]: With dead ends: 18834 [2022-11-03 03:28:10,234 INFO L226 Difference]: Without dead ends: 18830 [2022-11-03 03:28:10,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:28:10,236 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 912 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 2737 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 3544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:10,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 898 Invalid, 3544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2737 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:28:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18830 states. [2022-11-03 03:28:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18830 to 7510. [2022-11-03 03:28:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7467 states have (on average 2.119860720503549) internal successors, (15829), 7509 states have internal predecessors, (15829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 15829 transitions. [2022-11-03 03:28:10,544 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 15829 transitions. Word has length 32 [2022-11-03 03:28:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:10,544 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 15829 transitions. [2022-11-03 03:28:10,545 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) [2022-11-03 03:28:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 15829 transitions. [2022-11-03 03:28:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:10,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:10,550 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] [2022-11-03 03:28:10,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 03:28:10,551 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)] === [2022-11-03 03:28:10,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1216765438, now seen corresponding path program 2 times [2022-11-03 03:28:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:10,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273424543] [2022-11-03 03:28:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:10,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:12,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:12,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273424543] [2022-11-03 03:28:12,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273424543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:12,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:12,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:28:12,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340590146] [2022-11-03 03:28:12,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:12,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:28:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:28:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:12,706 INFO L87 Difference]: Start difference. First operand 7510 states and 15829 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) [2022-11-03 03:28:18,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:18,222 INFO L93 Difference]: Finished difference Result 14965 states and 31256 transitions. [2022-11-03 03:28:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:28:18,222 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 [2022-11-03 03:28:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:18,249 INFO L225 Difference]: With dead ends: 14965 [2022-11-03 03:28:18,249 INFO L226 Difference]: Without dead ends: 14965 [2022-11-03 03:28:18,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:28:18,251 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 907 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 3505 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:18,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 1151 Invalid, 3597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 3505 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 03:28:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14965 states. [2022-11-03 03:28:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14965 to 7510. [2022-11-03 03:28:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7467 states have (on average 2.119860720503549) internal successors, (15829), 7509 states have internal predecessors, (15829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 15829 transitions. [2022-11-03 03:28:18,633 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 15829 transitions. Word has length 32 [2022-11-03 03:28:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:18,635 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 15829 transitions. [2022-11-03 03:28:18,635 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) [2022-11-03 03:28:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 15829 transitions. [2022-11-03 03:28:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:18,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:18,645 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] [2022-11-03 03:28:18,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 03:28:18,648 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:28:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1216542238, now seen corresponding path program 3 times [2022-11-03 03:28:18,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:18,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350998745] [2022-11-03 03:28:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:18,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:20,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:20,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350998745] [2022-11-03 03:28:20,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350998745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:20,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:20,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 03:28:20,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113574698] [2022-11-03 03:28:20,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:20,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 03:28:20,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:20,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 03:28:20,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:28:20,715 INFO L87 Difference]: Start difference. First operand 7510 states and 15829 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:28:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:26,019 INFO L93 Difference]: Finished difference Result 13204 states and 27759 transitions. [2022-11-03 03:28:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:28:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 [2022-11-03 03:28:26,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:26,053 INFO L225 Difference]: With dead ends: 13204 [2022-11-03 03:28:26,053 INFO L226 Difference]: Without dead ends: 13204 [2022-11-03 03:28:26,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:28:26,054 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 669 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 4573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:26,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1048 Invalid, 4573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 03:28:26,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13204 states. [2022-11-03 03:28:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13204 to 7887. [2022-11-03 03:28:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7844 states have (on average 2.123916369199388) internal successors, (16660), 7886 states have internal predecessors, (16660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 16660 transitions. [2022-11-03 03:28:26,285 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 16660 transitions. Word has length 32 [2022-11-03 03:28:26,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:26,286 INFO L495 AbstractCegarLoop]: Abstraction has 7887 states and 16660 transitions. [2022-11-03 03:28:26,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:28:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 16660 transitions. [2022-11-03 03:28:26,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:26,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:26,293 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] [2022-11-03 03:28:26,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 03:28:26,293 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)] === [2022-11-03 03:28:26,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:26,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1675235758, now seen corresponding path program 3 times [2022-11-03 03:28:26,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:26,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622860931] [2022-11-03 03:28:26,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:26,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:28,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:28,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622860931] [2022-11-03 03:28:28,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622860931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:28,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:28,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:28:28,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573485540] [2022-11-03 03:28:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:28:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:28,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:28:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:28,143 INFO L87 Difference]: Start difference. First operand 7887 states and 16660 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) [2022-11-03 03:28:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:35,242 INFO L93 Difference]: Finished difference Result 22308 states and 47156 transitions. [2022-11-03 03:28:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-03 03:28:35,243 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 [2022-11-03 03:28:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:35,285 INFO L225 Difference]: With dead ends: 22308 [2022-11-03 03:28:35,285 INFO L226 Difference]: Without dead ends: 22301 [2022-11-03 03:28:35,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=513, Invalid=1293, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 03:28:35,287 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1019 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 3242 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 4020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 3242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:35,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 954 Invalid, 4020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [778 Valid, 3242 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 03:28:35,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22301 states. [2022-11-03 03:28:35,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22301 to 9867. [2022-11-03 03:28:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9867 states, 9824 states have (on average 2.1628664495114007) internal successors, (21248), 9866 states have internal predecessors, (21248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9867 states to 9867 states and 21248 transitions. [2022-11-03 03:28:35,637 INFO L78 Accepts]: Start accepts. Automaton has 9867 states and 21248 transitions. Word has length 32 [2022-11-03 03:28:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:35,638 INFO L495 AbstractCegarLoop]: Abstraction has 9867 states and 21248 transitions. [2022-11-03 03:28:35,638 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) [2022-11-03 03:28:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 9867 states and 21248 transitions. [2022-11-03 03:28:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:35,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:35,644 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] [2022-11-03 03:28:35,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 03:28:35,644 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:28:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 109348738, now seen corresponding path program 4 times [2022-11-03 03:28:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310492519] [2022-11-03 03:28:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:37,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310492519] [2022-11-03 03:28:37,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310492519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:37,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:37,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:28:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564514136] [2022-11-03 03:28:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:37,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:28:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:28:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:37,064 INFO L87 Difference]: Start difference. First operand 9867 states and 21248 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) [2022-11-03 03:28:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:45,435 INFO L93 Difference]: Finished difference Result 27159 states and 57419 transitions. [2022-11-03 03:28:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:28:45,436 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 [2022-11-03 03:28:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:45,494 INFO L225 Difference]: With dead ends: 27159 [2022-11-03 03:28:45,495 INFO L226 Difference]: Without dead ends: 27152 [2022-11-03 03:28:45,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=568, Invalid=1784, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:28:45,496 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1021 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 5309 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 5955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 5309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:45,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 1469 Invalid, 5955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 5309 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-03 03:28:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27152 states. [2022-11-03 03:28:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27152 to 14344. [2022-11-03 03:28:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14344 states, 14301 states have (on average 2.1795678623872456) internal successors, (31170), 14343 states have internal predecessors, (31170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14344 states to 14344 states and 31170 transitions. [2022-11-03 03:28:45,929 INFO L78 Accepts]: Start accepts. Automaton has 14344 states and 31170 transitions. Word has length 32 [2022-11-03 03:28:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:45,930 INFO L495 AbstractCegarLoop]: Abstraction has 14344 states and 31170 transitions. [2022-11-03 03:28:45,931 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) [2022-11-03 03:28:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 14344 states and 31170 transitions. [2022-11-03 03:28:45,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:45,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:45,939 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] [2022-11-03 03:28:45,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 03:28:45,940 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)] === [2022-11-03 03:28:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1201572112, now seen corresponding path program 4 times [2022-11-03 03:28:45,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:45,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774123018] [2022-11-03 03:28:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:45,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:47,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774123018] [2022-11-03 03:28:47,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774123018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:47,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:47,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 03:28:47,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971951980] [2022-11-03 03:28:47,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:47,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 03:28:47,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 03:28:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:28:47,619 INFO L87 Difference]: Start difference. First operand 14344 states and 31170 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:28:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:52,460 INFO L93 Difference]: Finished difference Result 21849 states and 47042 transitions. [2022-11-03 03:28:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:28:52,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 [2022-11-03 03:28:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:52,505 INFO L225 Difference]: With dead ends: 21849 [2022-11-03 03:28:52,505 INFO L226 Difference]: Without dead ends: 21849 [2022-11-03 03:28:52,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=514, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:28:52,507 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 697 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 4133 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 4167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:52,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1278 Invalid, 4167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 4133 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 03:28:52,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21849 states. [2022-11-03 03:28:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21849 to 16403. [2022-11-03 03:28:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16403 states, 16360 states have (on average 2.176466992665037) internal successors, (35607), 16402 states have internal predecessors, (35607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:28:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16403 states to 16403 states and 35607 transitions. [2022-11-03 03:28:53,022 INFO L78 Accepts]: Start accepts. Automaton has 16403 states and 35607 transitions. Word has length 32 [2022-11-03 03:28:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:53,022 INFO L495 AbstractCegarLoop]: Abstraction has 16403 states and 35607 transitions. [2022-11-03 03:28:53,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:28:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand 16403 states and 35607 transitions. [2022-11-03 03:28:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:28:53,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:53,027 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] [2022-11-03 03:28:53,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 03:28:53,027 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)] === [2022-11-03 03:28:53,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1201795312, now seen corresponding path program 5 times [2022-11-03 03:28:53,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:53,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321140759] [2022-11-03 03:28:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:55,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:55,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321140759] [2022-11-03 03:28:55,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321140759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:55,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:55,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:28:55,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246272082] [2022-11-03 03:28:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:55,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:28:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:28:55,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:55,608 INFO L87 Difference]: Start difference. First operand 16403 states and 35607 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) [2022-11-03 03:29:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:02,079 INFO L93 Difference]: Finished difference Result 21641 states and 45809 transitions. [2022-11-03 03:29:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:29:02,079 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 [2022-11-03 03:29:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:02,119 INFO L225 Difference]: With dead ends: 21641 [2022-11-03 03:29:02,119 INFO L226 Difference]: Without dead ends: 21641 [2022-11-03 03:29:02,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:29:02,120 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1127 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:02,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1526 Invalid, 4424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 03:29:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21641 states. [2022-11-03 03:29:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21641 to 14665. [2022-11-03 03:29:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14665 states, 14622 states have (on average 2.17870332375872) internal successors, (31857), 14664 states have internal predecessors, (31857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14665 states to 14665 states and 31857 transitions. [2022-11-03 03:29:02,462 INFO L78 Accepts]: Start accepts. Automaton has 14665 states and 31857 transitions. Word has length 32 [2022-11-03 03:29:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 14665 states and 31857 transitions. [2022-11-03 03:29:02,463 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) [2022-11-03 03:29:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 14665 states and 31857 transitions. [2022-11-03 03:29:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:02,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:02,470 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] [2022-11-03 03:29:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 03:29:02,471 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)] === [2022-11-03 03:29:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1207064818, now seen corresponding path program 6 times [2022-11-03 03:29:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:02,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184817317] [2022-11-03 03:29:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:02,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:04,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:04,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184817317] [2022-11-03 03:29:04,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184817317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:04,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:04,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45986056] [2022-11-03 03:29:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:04,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:04,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:04,652 INFO L87 Difference]: Start difference. First operand 14665 states and 31857 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) [2022-11-03 03:29:10,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:10,015 INFO L93 Difference]: Finished difference Result 19005 states and 40220 transitions. [2022-11-03 03:29:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:29:10,016 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 [2022-11-03 03:29:10,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:10,055 INFO L225 Difference]: With dead ends: 19005 [2022-11-03 03:29:10,056 INFO L226 Difference]: Without dead ends: 19005 [2022-11-03 03:29:10,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:29:10,057 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 871 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:10,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1385 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 03:29:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19005 states. [2022-11-03 03:29:10,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19005 to 14674. [2022-11-03 03:29:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14674 states, 14631 states have (on average 2.17859339758048) internal successors, (31875), 14673 states have internal predecessors, (31875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14674 states to 14674 states and 31875 transitions. [2022-11-03 03:29:10,336 INFO L78 Accepts]: Start accepts. Automaton has 14674 states and 31875 transitions. Word has length 32 [2022-11-03 03:29:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:10,337 INFO L495 AbstractCegarLoop]: Abstraction has 14674 states and 31875 transitions. [2022-11-03 03:29:10,337 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) [2022-11-03 03:29:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 14674 states and 31875 transitions. [2022-11-03 03:29:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:10,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:10,344 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] [2022-11-03 03:29:10,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 03:29:10,344 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:29:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1207288018, now seen corresponding path program 7 times [2022-11-03 03:29:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:10,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970332584] [2022-11-03 03:29:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:12,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:12,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970332584] [2022-11-03 03:29:12,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970332584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:12,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:12,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:12,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596383023] [2022-11-03 03:29:12,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:12,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:12,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:12,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:12,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:12,450 INFO L87 Difference]: Start difference. First operand 14674 states and 31875 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) [2022-11-03 03:29:17,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:17,653 INFO L93 Difference]: Finished difference Result 18969 states and 40145 transitions. [2022-11-03 03:29:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:29:17,653 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 [2022-11-03 03:29:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:17,685 INFO L225 Difference]: With dead ends: 18969 [2022-11-03 03:29:17,685 INFO L226 Difference]: Without dead ends: 18969 [2022-11-03 03:29:17,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:29:17,686 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 754 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:17,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1504 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 3454 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 03:29:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18969 states. [2022-11-03 03:29:17,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18969 to 14656. [2022-11-03 03:29:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14656 states, 14613 states have (on average 2.178813385341819) internal successors, (31839), 14655 states have internal predecessors, (31839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14656 states to 14656 states and 31839 transitions. [2022-11-03 03:29:17,944 INFO L78 Accepts]: Start accepts. Automaton has 14656 states and 31839 transitions. Word has length 32 [2022-11-03 03:29:17,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:17,944 INFO L495 AbstractCegarLoop]: Abstraction has 14656 states and 31839 transitions. [2022-11-03 03:29:17,944 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) [2022-11-03 03:29:17,945 INFO L276 IsEmpty]: Start isEmpty. Operand 14656 states and 31839 transitions. [2022-11-03 03:29:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:17,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:17,951 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] [2022-11-03 03:29:17,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 03:29:17,951 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:29:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1094458360, now seen corresponding path program 8 times [2022-11-03 03:29:17,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:17,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874643772] [2022-11-03 03:29:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:17,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:19,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874643772] [2022-11-03 03:29:19,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874643772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:19,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:19,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099243586] [2022-11-03 03:29:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:19,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:19,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:19,863 INFO L87 Difference]: Start difference. First operand 14656 states and 31839 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) [2022-11-03 03:29:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:27,626 INFO L93 Difference]: Finished difference Result 18872 states and 39951 transitions. [2022-11-03 03:29:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:29:27,626 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 [2022-11-03 03:29:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:27,663 INFO L225 Difference]: With dead ends: 18872 [2022-11-03 03:29:27,663 INFO L226 Difference]: Without dead ends: 18872 [2022-11-03 03:29:27,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 03:29:27,665 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 893 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 5734 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:27,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 1541 Invalid, 5806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5734 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 03:29:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18872 states. [2022-11-03 03:29:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18872 to 14654. [2022-11-03 03:29:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14654 states, 14611 states have (on average 2.1788378618848814) internal successors, (31835), 14653 states have internal predecessors, (31835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14654 states to 14654 states and 31835 transitions. [2022-11-03 03:29:28,087 INFO L78 Accepts]: Start accepts. Automaton has 14654 states and 31835 transitions. Word has length 32 [2022-11-03 03:29:28,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:28,087 INFO L495 AbstractCegarLoop]: Abstraction has 14654 states and 31835 transitions. [2022-11-03 03:29:28,088 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) [2022-11-03 03:29:28,088 INFO L276 IsEmpty]: Start isEmpty. Operand 14654 states and 31835 transitions. [2022-11-03 03:29:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:28,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:28,096 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] [2022-11-03 03:29:28,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 03:29:28,097 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:29:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1094681560, now seen corresponding path program 9 times [2022-11-03 03:29:28,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:28,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38906055] [2022-11-03 03:29:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:30,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:30,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:30,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38906055] [2022-11-03 03:29:30,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38906055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:30,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:30,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:30,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390927574] [2022-11-03 03:29:30,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:30,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:30,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:30,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:30,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:30,085 INFO L87 Difference]: Start difference. First operand 14654 states and 31835 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) [2022-11-03 03:29:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:34,964 INFO L93 Difference]: Finished difference Result 18905 states and 40017 transitions. [2022-11-03 03:29:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:29:34,966 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 [2022-11-03 03:29:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:35,002 INFO L225 Difference]: With dead ends: 18905 [2022-11-03 03:29:35,002 INFO L226 Difference]: Without dead ends: 18905 [2022-11-03 03:29:35,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:29:35,004 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 909 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 3163 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1384 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3163 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 03:29:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18905 states. [2022-11-03 03:29:35,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18905 to 14646. [2022-11-03 03:29:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14646 states, 14603 states have (on average 2.178935835102376) internal successors, (31819), 14645 states have internal predecessors, (31819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14646 states to 14646 states and 31819 transitions. [2022-11-03 03:29:35,260 INFO L78 Accepts]: Start accepts. Automaton has 14646 states and 31819 transitions. Word has length 32 [2022-11-03 03:29:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:35,260 INFO L495 AbstractCegarLoop]: Abstraction has 14646 states and 31819 transitions. [2022-11-03 03:29:35,260 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) [2022-11-03 03:29:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 14646 states and 31819 transitions. [2022-11-03 03:29:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:35,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:35,266 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] [2022-11-03 03:29:35,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-03 03:29:35,266 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)] === [2022-11-03 03:29:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1420893010, now seen corresponding path program 10 times [2022-11-03 03:29:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:35,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856513643] [2022-11-03 03:29:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:37,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:37,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856513643] [2022-11-03 03:29:37,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856513643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:37,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:37,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:37,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239448669] [2022-11-03 03:29:37,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:37,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:37,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:37,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:37,147 INFO L87 Difference]: Start difference. First operand 14646 states and 31819 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) [2022-11-03 03:29:43,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:43,514 INFO L93 Difference]: Finished difference Result 18816 states and 39836 transitions. [2022-11-03 03:29:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:29:43,515 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 [2022-11-03 03:29:43,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:43,551 INFO L225 Difference]: With dead ends: 18816 [2022-11-03 03:29:43,551 INFO L226 Difference]: Without dead ends: 18816 [2022-11-03 03:29:43,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:29:43,553 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 992 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 4350 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 4438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:43,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1406 Invalid, 4438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4350 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-03 03:29:43,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18816 states. [2022-11-03 03:29:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18816 to 14340. [2022-11-03 03:29:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14340 states, 14297 states have (on average 2.1798978806742673) internal successors, (31166), 14339 states have internal predecessors, (31166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14340 states to 14340 states and 31166 transitions. [2022-11-03 03:29:43,830 INFO L78 Accepts]: Start accepts. Automaton has 14340 states and 31166 transitions. Word has length 32 [2022-11-03 03:29:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:43,830 INFO L495 AbstractCegarLoop]: Abstraction has 14340 states and 31166 transitions. [2022-11-03 03:29:43,831 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) [2022-11-03 03:29:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14340 states and 31166 transitions. [2022-11-03 03:29:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:43,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:43,837 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] [2022-11-03 03:29:43,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-03 03:29:43,837 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)] === [2022-11-03 03:29:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:43,837 INFO L85 PathProgramCache]: Analyzing trace with hash 189326980, now seen corresponding path program 5 times [2022-11-03 03:29:43,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:43,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648975881] [2022-11-03 03:29:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:45,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:45,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648975881] [2022-11-03 03:29:45,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648975881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:45,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:45,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:45,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661649403] [2022-11-03 03:29:45,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:45,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:45,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:45,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:45,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:45,104 INFO L87 Difference]: Start difference. First operand 14340 states and 31166 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) [2022-11-03 03:29:52,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:52,921 INFO L93 Difference]: Finished difference Result 31115 states and 66842 transitions. [2022-11-03 03:29:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-03 03:29:52,922 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 [2022-11-03 03:29:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:53,013 INFO L225 Difference]: With dead ends: 31115 [2022-11-03 03:29:53,013 INFO L226 Difference]: Without dead ends: 31108 [2022-11-03 03:29:53,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=528, Invalid=1364, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 03:29:53,015 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1037 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 4198 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 4880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 4198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:53,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1097 Invalid, 4880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 4198 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 03:29:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31108 states. [2022-11-03 03:29:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31108 to 14354. [2022-11-03 03:29:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 14311 states have (on average 2.179721892250716) internal successors, (31194), 14353 states have internal predecessors, (31194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:29:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 31194 transitions. [2022-11-03 03:29:53,366 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 31194 transitions. Word has length 32 [2022-11-03 03:29:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:53,366 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 31194 transitions. [2022-11-03 03:29:53,367 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) [2022-11-03 03:29:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 31194 transitions. [2022-11-03 03:29:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:29:53,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:53,371 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] [2022-11-03 03:29:53,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-03 03:29:53,371 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:29:53,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1942817316, now seen corresponding path program 6 times [2022-11-03 03:29:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:53,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254063828] [2022-11-03 03:29:53,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:53,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:29:55,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:55,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254063828] [2022-11-03 03:29:55,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254063828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:55,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:55,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:29:55,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738705024] [2022-11-03 03:29:55,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:55,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:29:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:55,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:29:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:29:55,074 INFO L87 Difference]: Start difference. First operand 14354 states and 31194 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) [2022-11-03 03:30:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:01,028 INFO L93 Difference]: Finished difference Result 28939 states and 62416 transitions. [2022-11-03 03:30:01,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-03 03:30:01,029 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 [2022-11-03 03:30:01,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:01,089 INFO L225 Difference]: With dead ends: 28939 [2022-11-03 03:30:01,090 INFO L226 Difference]: Without dead ends: 28935 [2022-11-03 03:30:01,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=378, Invalid=882, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 03:30:01,091 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 766 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 3942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:01,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 695 Invalid, 3942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 03:30:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28935 states. [2022-11-03 03:30:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28935 to 15995. [2022-11-03 03:30:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15995 states, 15952 states have (on average 2.194019558676028) internal successors, (34999), 15994 states have internal predecessors, (34999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15995 states to 15995 states and 34999 transitions. [2022-11-03 03:30:01,499 INFO L78 Accepts]: Start accepts. Automaton has 15995 states and 34999 transitions. Word has length 32 [2022-11-03 03:30:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:01,499 INFO L495 AbstractCegarLoop]: Abstraction has 15995 states and 34999 transitions. [2022-11-03 03:30:01,499 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) [2022-11-03 03:30:01,500 INFO L276 IsEmpty]: Start isEmpty. Operand 15995 states and 34999 transitions. [2022-11-03 03:30:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:01,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:01,504 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] [2022-11-03 03:30:01,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-03 03:30:01,504 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:30:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1533136620, now seen corresponding path program 11 times [2022-11-03 03:30:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:01,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045667716] [2022-11-03 03:30:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:03,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:03,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045667716] [2022-11-03 03:30:03,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045667716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:03,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:03,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758047444] [2022-11-03 03:30:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:03,034 INFO L87 Difference]: Start difference. First operand 15995 states and 34999 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) [2022-11-03 03:30:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:09,565 INFO L93 Difference]: Finished difference Result 24576 states and 52883 transitions. [2022-11-03 03:30:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:30:09,566 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 [2022-11-03 03:30:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:09,611 INFO L225 Difference]: With dead ends: 24576 [2022-11-03 03:30:09,611 INFO L226 Difference]: Without dead ends: 24576 [2022-11-03 03:30:09,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:30:09,612 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 816 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 4822 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:09,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1146 Invalid, 4938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4822 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 03:30:09,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24576 states. [2022-11-03 03:30:09,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24576 to 14310. [2022-11-03 03:30:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14310 states, 14267 states have (on average 2.1792247844676527) internal successors, (31091), 14309 states have internal predecessors, (31091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14310 states to 14310 states and 31091 transitions. [2022-11-03 03:30:09,909 INFO L78 Accepts]: Start accepts. Automaton has 14310 states and 31091 transitions. Word has length 32 [2022-11-03 03:30:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:09,909 INFO L495 AbstractCegarLoop]: Abstraction has 14310 states and 31091 transitions. [2022-11-03 03:30:09,909 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) [2022-11-03 03:30:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 14310 states and 31091 transitions. [2022-11-03 03:30:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:09,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:09,913 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] [2022-11-03 03:30:09,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-03 03:30:09,913 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)] === [2022-11-03 03:30:09,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash 917532686, now seen corresponding path program 7 times [2022-11-03 03:30:09,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:09,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258615129] [2022-11-03 03:30:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:09,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:11,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:11,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258615129] [2022-11-03 03:30:11,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258615129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:11,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:11,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:11,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695922660] [2022-11-03 03:30:11,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:11,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:11,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:11,838 INFO L87 Difference]: Start difference. First operand 14310 states and 31091 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) [2022-11-03 03:30:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:17,804 INFO L93 Difference]: Finished difference Result 24538 states and 52195 transitions. [2022-11-03 03:30:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:30:17,804 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 [2022-11-03 03:30:17,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:17,854 INFO L225 Difference]: With dead ends: 24538 [2022-11-03 03:30:17,854 INFO L226 Difference]: Without dead ends: 24534 [2022-11-03 03:30:17,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=378, Invalid=954, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:30:17,855 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 811 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:17,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 849 Invalid, 3704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:30:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24534 states. [2022-11-03 03:30:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24534 to 14610. [2022-11-03 03:30:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14610 states, 14567 states have (on average 2.1787602114368094) internal successors, (31738), 14609 states have internal predecessors, (31738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14610 states to 14610 states and 31738 transitions. [2022-11-03 03:30:18,145 INFO L78 Accepts]: Start accepts. Automaton has 14610 states and 31738 transitions. Word has length 32 [2022-11-03 03:30:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:18,145 INFO L495 AbstractCegarLoop]: Abstraction has 14610 states and 31738 transitions. [2022-11-03 03:30:18,145 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) [2022-11-03 03:30:18,145 INFO L276 IsEmpty]: Start isEmpty. Operand 14610 states and 31738 transitions. [2022-11-03 03:30:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:18,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:18,149 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] [2022-11-03 03:30:18,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-03 03:30:18,149 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)] === [2022-11-03 03:30:18,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1736546046, now seen corresponding path program 12 times [2022-11-03 03:30:18,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:18,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16746097] [2022-11-03 03:30:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:18,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:19,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:19,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16746097] [2022-11-03 03:30:19,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16746097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:19,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:19,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659070348] [2022-11-03 03:30:19,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:19,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:19,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:19,620 INFO L87 Difference]: Start difference. First operand 14610 states and 31738 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) [2022-11-03 03:30:25,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:25,540 INFO L93 Difference]: Finished difference Result 21440 states and 45855 transitions. [2022-11-03 03:30:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 03:30:25,541 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 [2022-11-03 03:30:25,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:25,580 INFO L225 Difference]: With dead ends: 21440 [2022-11-03 03:30:25,580 INFO L226 Difference]: Without dead ends: 21440 [2022-11-03 03:30:25,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:30:25,581 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 817 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 4774 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 4852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:25,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1220 Invalid, 4852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4774 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 03:30:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21440 states. [2022-11-03 03:30:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21440 to 14601. [2022-11-03 03:30:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14601 states, 14558 states have (on average 2.1788707240005496) internal successors, (31720), 14600 states have internal predecessors, (31720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14601 states to 14601 states and 31720 transitions. [2022-11-03 03:30:25,931 INFO L78 Accepts]: Start accepts. Automaton has 14601 states and 31720 transitions. Word has length 32 [2022-11-03 03:30:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:25,931 INFO L495 AbstractCegarLoop]: Abstraction has 14601 states and 31720 transitions. [2022-11-03 03:30:25,932 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) [2022-11-03 03:30:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14601 states and 31720 transitions. [2022-11-03 03:30:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:25,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:25,936 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] [2022-11-03 03:30:25,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-03 03:30:25,936 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)] === [2022-11-03 03:30:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1736322846, now seen corresponding path program 13 times [2022-11-03 03:30:25,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:25,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702686038] [2022-11-03 03:30:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:25,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:27,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:27,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702686038] [2022-11-03 03:30:27,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702686038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:27,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:27,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 03:30:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530615584] [2022-11-03 03:30:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:27,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 03:30:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 03:30:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:30:27,130 INFO L87 Difference]: Start difference. First operand 14601 states and 31720 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:30:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:31,972 INFO L93 Difference]: Finished difference Result 18482 states and 39806 transitions. [2022-11-03 03:30:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:30:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 [2022-11-03 03:30:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:32,083 INFO L225 Difference]: With dead ends: 18482 [2022-11-03 03:30:32,083 INFO L226 Difference]: Without dead ends: 18482 [2022-11-03 03:30:32,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:30:32,084 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 531 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:32,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1179 Invalid, 4895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 03:30:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18482 states. [2022-11-03 03:30:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18482 to 14722. [2022-11-03 03:30:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14722 states, 14679 states have (on average 2.1791675182233123) internal successors, (31988), 14721 states have internal predecessors, (31988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14722 states to 14722 states and 31988 transitions. [2022-11-03 03:30:32,334 INFO L78 Accepts]: Start accepts. Automaton has 14722 states and 31988 transitions. Word has length 32 [2022-11-03 03:30:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:32,334 INFO L495 AbstractCegarLoop]: Abstraction has 14722 states and 31988 transitions. [2022-11-03 03:30:32,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:30:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 14722 states and 31988 transitions. [2022-11-03 03:30:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:32,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:32,339 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] [2022-11-03 03:30:32,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 03:30:32,339 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:30:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1155455150, now seen corresponding path program 8 times [2022-11-03 03:30:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:32,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773045104] [2022-11-03 03:30:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:32,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:33,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:33,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773045104] [2022-11-03 03:30:33,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773045104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:33,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:33,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739889391] [2022-11-03 03:30:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:33,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:33,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:33,686 INFO L87 Difference]: Start difference. First operand 14722 states and 31988 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) [2022-11-03 03:30:40,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:40,025 INFO L93 Difference]: Finished difference Result 25885 states and 54997 transitions. [2022-11-03 03:30:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 03:30:40,026 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 [2022-11-03 03:30:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:40,077 INFO L225 Difference]: With dead ends: 25885 [2022-11-03 03:30:40,077 INFO L226 Difference]: Without dead ends: 25878 [2022-11-03 03:30:40,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=387, Invalid=1095, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 03:30:40,079 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 789 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:40,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1146 Invalid, 4542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 3859 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:30:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25878 states. [2022-11-03 03:30:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25878 to 14736. [2022-11-03 03:30:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14736 states, 14693 states have (on average 2.1795412781596677) internal successors, (32024), 14735 states have internal predecessors, (32024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14736 states to 14736 states and 32024 transitions. [2022-11-03 03:30:40,370 INFO L78 Accepts]: Start accepts. Automaton has 14736 states and 32024 transitions. Word has length 32 [2022-11-03 03:30:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:40,370 INFO L495 AbstractCegarLoop]: Abstraction has 14736 states and 32024 transitions. [2022-11-03 03:30:40,371 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) [2022-11-03 03:30:40,371 INFO L276 IsEmpty]: Start isEmpty. Operand 14736 states and 32024 transitions. [2022-11-03 03:30:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:40,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:40,375 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] [2022-11-03 03:30:40,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 03:30:40,375 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:30:40,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash 629129346, now seen corresponding path program 9 times [2022-11-03 03:30:40,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:40,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943410616] [2022-11-03 03:30:40,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:40,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:41,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943410616] [2022-11-03 03:30:41,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943410616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:41,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:41,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46059917] [2022-11-03 03:30:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:41,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:41,464 INFO L87 Difference]: Start difference. First operand 14736 states and 32024 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) [2022-11-03 03:30:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:48,432 INFO L93 Difference]: Finished difference Result 27660 states and 58534 transitions. [2022-11-03 03:30:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 03:30:48,432 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 [2022-11-03 03:30:48,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:48,485 INFO L225 Difference]: With dead ends: 27660 [2022-11-03 03:30:48,485 INFO L226 Difference]: Without dead ends: 27653 [2022-11-03 03:30:48,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=354, Invalid=1206, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 03:30:48,487 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 892 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 5947 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 6557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 5947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:48,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 1685 Invalid, 6557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 5947 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:30:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27653 states. [2022-11-03 03:30:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27653 to 15832. [2022-11-03 03:30:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15832 states, 15789 states have (on average 2.1816454493634807) internal successors, (34446), 15831 states have internal predecessors, (34446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15832 states to 15832 states and 34446 transitions. [2022-11-03 03:30:48,801 INFO L78 Accepts]: Start accepts. Automaton has 15832 states and 34446 transitions. Word has length 32 [2022-11-03 03:30:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:48,802 INFO L495 AbstractCegarLoop]: Abstraction has 15832 states and 34446 transitions. [2022-11-03 03:30:48,802 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) [2022-11-03 03:30:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 15832 states and 34446 transitions. [2022-11-03 03:30:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:48,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:48,809 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] [2022-11-03 03:30:48,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-03 03:30:48,810 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:30:48,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash -681791504, now seen corresponding path program 14 times [2022-11-03 03:30:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:48,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474650110] [2022-11-03 03:30:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:50,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:50,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474650110] [2022-11-03 03:30:50,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474650110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:50,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:50,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:50,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843240872] [2022-11-03 03:30:50,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:50,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:50,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:50,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:50,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:50,283 INFO L87 Difference]: Start difference. First operand 15832 states and 34446 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) [2022-11-03 03:30:56,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:56,455 INFO L93 Difference]: Finished difference Result 23138 states and 49292 transitions. [2022-11-03 03:30:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:30:56,456 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 [2022-11-03 03:30:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:56,496 INFO L225 Difference]: With dead ends: 23138 [2022-11-03 03:30:56,496 INFO L226 Difference]: Without dead ends: 23138 [2022-11-03 03:30:56,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:30:56,497 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 876 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 4843 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 4906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:56,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 1835 Invalid, 4906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4843 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:30:56,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23138 states. [2022-11-03 03:30:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23138 to 16066. [2022-11-03 03:30:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16066 states, 16023 states have (on average 2.18111464769394) internal successors, (34948), 16065 states have internal predecessors, (34948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16066 states to 16066 states and 34948 transitions. [2022-11-03 03:30:56,799 INFO L78 Accepts]: Start accepts. Automaton has 16066 states and 34948 transitions. Word has length 32 [2022-11-03 03:30:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:56,800 INFO L495 AbstractCegarLoop]: Abstraction has 16066 states and 34948 transitions. [2022-11-03 03:30:56,800 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) [2022-11-03 03:30:56,800 INFO L276 IsEmpty]: Start isEmpty. Operand 16066 states and 34948 transitions. [2022-11-03 03:30:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:30:56,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:56,805 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] [2022-11-03 03:30:56,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-03 03:30:56,806 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)] === [2022-11-03 03:30:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash -682014704, now seen corresponding path program 15 times [2022-11-03 03:30:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:56,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598319822] [2022-11-03 03:30:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:30:58,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:58,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598319822] [2022-11-03 03:30:58,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598319822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:58,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:58,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:30:58,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189977840] [2022-11-03 03:30:58,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:58,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:30:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:30:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:30:58,629 INFO L87 Difference]: Start difference. First operand 16066 states and 34948 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) [2022-11-03 03:31:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:05,194 INFO L93 Difference]: Finished difference Result 23118 states and 49252 transitions. [2022-11-03 03:31:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:05,195 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 [2022-11-03 03:31:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:05,240 INFO L225 Difference]: With dead ends: 23118 [2022-11-03 03:31:05,241 INFO L226 Difference]: Without dead ends: 23118 [2022-11-03 03:31:05,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:31:05,242 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 869 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 5352 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:05,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1845 Invalid, 5421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 5352 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:31:05,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23118 states. [2022-11-03 03:31:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23118 to 15621. [2022-11-03 03:31:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15621 states, 15578 states have (on average 2.180960328668635) internal successors, (33975), 15620 states have internal predecessors, (33975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15621 states to 15621 states and 33975 transitions. [2022-11-03 03:31:05,547 INFO L78 Accepts]: Start accepts. Automaton has 15621 states and 33975 transitions. Word has length 32 [2022-11-03 03:31:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:05,547 INFO L495 AbstractCegarLoop]: Abstraction has 15621 states and 33975 transitions. [2022-11-03 03:31:05,547 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) [2022-11-03 03:31:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 15621 states and 33975 transitions. [2022-11-03 03:31:05,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:05,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:05,552 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] [2022-11-03 03:31:05,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-03 03:31:05,553 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:31:05,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:05,553 INFO L85 PathProgramCache]: Analyzing trace with hash -687284210, now seen corresponding path program 16 times [2022-11-03 03:31:05,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:05,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769188824] [2022-11-03 03:31:05,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:06,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:06,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769188824] [2022-11-03 03:31:06,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769188824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:06,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:06,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:06,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664950190] [2022-11-03 03:31:06,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:06,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:06,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:06,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:06,867 INFO L87 Difference]: Start difference. First operand 15621 states and 33975 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) [2022-11-03 03:31:11,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:11,019 INFO L93 Difference]: Finished difference Result 22686 states and 48438 transitions. [2022-11-03 03:31:11,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:11,020 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 [2022-11-03 03:31:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:11,062 INFO L225 Difference]: With dead ends: 22686 [2022-11-03 03:31:11,062 INFO L226 Difference]: Without dead ends: 22686 [2022-11-03 03:31:11,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:31:11,063 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 654 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 3346 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:11,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1653 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3346 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 03:31:11,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22686 states. [2022-11-03 03:31:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22686 to 15630. [2022-11-03 03:31:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15630 states, 15587 states have (on average 2.1808558414063) internal successors, (33993), 15629 states have internal predecessors, (33993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:11,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15630 states to 15630 states and 33993 transitions. [2022-11-03 03:31:11,323 INFO L78 Accepts]: Start accepts. Automaton has 15630 states and 33993 transitions. Word has length 32 [2022-11-03 03:31:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:11,323 INFO L495 AbstractCegarLoop]: Abstraction has 15630 states and 33993 transitions. [2022-11-03 03:31:11,323 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) [2022-11-03 03:31:11,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15630 states and 33993 transitions. [2022-11-03 03:31:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:11,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:11,330 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] [2022-11-03 03:31:11,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-03 03:31:11,331 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:31:11,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash -687507410, now seen corresponding path program 17 times [2022-11-03 03:31:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:11,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409216622] [2022-11-03 03:31:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:12,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:12,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409216622] [2022-11-03 03:31:12,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409216622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:12,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:12,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:12,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389626788] [2022-11-03 03:31:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:12,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:12,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:12,822 INFO L87 Difference]: Start difference. First operand 15630 states and 33993 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) [2022-11-03 03:31:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:16,796 INFO L93 Difference]: Finished difference Result 22662 states and 48390 transitions. [2022-11-03 03:31:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:16,797 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 [2022-11-03 03:31:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:16,838 INFO L225 Difference]: With dead ends: 22662 [2022-11-03 03:31:16,838 INFO L226 Difference]: Without dead ends: 22662 [2022-11-03 03:31:16,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:31:16,839 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 744 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:16,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1526 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3073 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 03:31:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22662 states. [2022-11-03 03:31:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22662 to 15618. [2022-11-03 03:31:17,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15618 states, 15575 states have (on average 2.18099518459069) internal successors, (33969), 15617 states have internal predecessors, (33969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15618 states to 15618 states and 33969 transitions. [2022-11-03 03:31:17,210 INFO L78 Accepts]: Start accepts. Automaton has 15618 states and 33969 transitions. Word has length 32 [2022-11-03 03:31:17,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:17,211 INFO L495 AbstractCegarLoop]: Abstraction has 15618 states and 33969 transitions. [2022-11-03 03:31:17,211 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) [2022-11-03 03:31:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand 15618 states and 33969 transitions. [2022-11-03 03:31:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:17,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:17,215 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] [2022-11-03 03:31:17,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-03 03:31:17,216 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)] === [2022-11-03 03:31:17,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:17,217 INFO L85 PathProgramCache]: Analyzing trace with hash -574677752, now seen corresponding path program 18 times [2022-11-03 03:31:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:17,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157945780] [2022-11-03 03:31:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:18,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157945780] [2022-11-03 03:31:18,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157945780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:18,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:18,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830679660] [2022-11-03 03:31:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:18,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:18,531 INFO L87 Difference]: Start difference. First operand 15618 states and 33969 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) [2022-11-03 03:31:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:24,962 INFO L93 Difference]: Finished difference Result 22618 states and 48302 transitions. [2022-11-03 03:31:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:31:24,962 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 [2022-11-03 03:31:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:25,006 INFO L225 Difference]: With dead ends: 22618 [2022-11-03 03:31:25,006 INFO L226 Difference]: Without dead ends: 22618 [2022-11-03 03:31:25,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 03:31:25,007 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 885 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 4895 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 4979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:25,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1558 Invalid, 4979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4895 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 03:31:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22618 states. [2022-11-03 03:31:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22618 to 15620. [2022-11-03 03:31:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15620 states, 15577 states have (on average 2.1809719458175514) internal successors, (33973), 15619 states have internal predecessors, (33973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15620 states to 15620 states and 33973 transitions. [2022-11-03 03:31:25,315 INFO L78 Accepts]: Start accepts. Automaton has 15620 states and 33973 transitions. Word has length 32 [2022-11-03 03:31:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:25,315 INFO L495 AbstractCegarLoop]: Abstraction has 15620 states and 33973 transitions. [2022-11-03 03:31:25,315 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) [2022-11-03 03:31:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand 15620 states and 33973 transitions. [2022-11-03 03:31:25,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:25,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:25,320 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] [2022-11-03 03:31:25,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-03 03:31:25,321 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)] === [2022-11-03 03:31:25,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:25,321 INFO L85 PathProgramCache]: Analyzing trace with hash -574900952, now seen corresponding path program 19 times [2022-11-03 03:31:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:25,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993669336] [2022-11-03 03:31:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:25,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:27,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:27,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993669336] [2022-11-03 03:31:27,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993669336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:27,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:27,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000375013] [2022-11-03 03:31:27,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:27,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:27,022 INFO L87 Difference]: Start difference. First operand 15620 states and 33973 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) [2022-11-03 03:31:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:33,515 INFO L93 Difference]: Finished difference Result 22630 states and 48326 transitions. [2022-11-03 03:31:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:33,516 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 [2022-11-03 03:31:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:33,560 INFO L225 Difference]: With dead ends: 22630 [2022-11-03 03:31:33,560 INFO L226 Difference]: Without dead ends: 22630 [2022-11-03 03:31:33,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:31:33,561 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 689 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 4895 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 4965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:33,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1680 Invalid, 4965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 4895 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:31:33,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22630 states. [2022-11-03 03:31:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22630 to 15616. [2022-11-03 03:31:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15616 states, 15573 states have (on average 2.1810184293328194) internal successors, (33965), 15615 states have internal predecessors, (33965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15616 states to 15616 states and 33965 transitions. [2022-11-03 03:31:33,872 INFO L78 Accepts]: Start accepts. Automaton has 15616 states and 33965 transitions. Word has length 32 [2022-11-03 03:31:33,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:33,872 INFO L495 AbstractCegarLoop]: Abstraction has 15616 states and 33965 transitions. [2022-11-03 03:31:33,873 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) [2022-11-03 03:31:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 15616 states and 33965 transitions. [2022-11-03 03:31:33,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:33,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:33,879 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] [2022-11-03 03:31:33,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-03 03:31:33,880 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)] === [2022-11-03 03:31:33,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -901112402, now seen corresponding path program 20 times [2022-11-03 03:31:33,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:33,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835755572] [2022-11-03 03:31:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:35,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:35,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835755572] [2022-11-03 03:31:35,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835755572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:35,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:35,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:35,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401956746] [2022-11-03 03:31:35,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:35,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:35,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:35,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:35,489 INFO L87 Difference]: Start difference. First operand 15616 states and 33965 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) [2022-11-03 03:31:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:43,041 INFO L93 Difference]: Finished difference Result 22586 states and 48238 transitions. [2022-11-03 03:31:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:31:43,041 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 [2022-11-03 03:31:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:43,082 INFO L225 Difference]: With dead ends: 22586 [2022-11-03 03:31:43,082 INFO L226 Difference]: Without dead ends: 22586 [2022-11-03 03:31:43,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:31:43,083 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 774 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 5448 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 5516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:43,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1690 Invalid, 5516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5448 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 03:31:43,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22586 states. [2022-11-03 03:31:43,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22586 to 15396. [2022-11-03 03:31:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15396 states, 15353 states have (on average 2.181397772422328) internal successors, (33491), 15395 states have internal predecessors, (33491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15396 states to 15396 states and 33491 transitions. [2022-11-03 03:31:43,419 INFO L78 Accepts]: Start accepts. Automaton has 15396 states and 33491 transitions. Word has length 32 [2022-11-03 03:31:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:43,419 INFO L495 AbstractCegarLoop]: Abstraction has 15396 states and 33491 transitions. [2022-11-03 03:31:43,419 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) [2022-11-03 03:31:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 15396 states and 33491 transitions. [2022-11-03 03:31:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:43,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:43,424 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] [2022-11-03 03:31:43,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-03 03:31:43,424 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:31:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash 709107588, now seen corresponding path program 10 times [2022-11-03 03:31:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:43,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700227102] [2022-11-03 03:31:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:44,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:44,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700227102] [2022-11-03 03:31:44,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700227102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:44,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:44,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904195698] [2022-11-03 03:31:44,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:44,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:44,698 INFO L87 Difference]: Start difference. First operand 15396 states and 33491 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) [2022-11-03 03:31:51,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:51,677 INFO L93 Difference]: Finished difference Result 25971 states and 55263 transitions. [2022-11-03 03:31:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 03:31:51,678 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 [2022-11-03 03:31:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:51,732 INFO L225 Difference]: With dead ends: 25971 [2022-11-03 03:31:51,732 INFO L226 Difference]: Without dead ends: 25967 [2022-11-03 03:31:51,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 03:31:51,734 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 917 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 3630 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 3630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:51,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1291 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 3630 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 03:31:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25967 states. [2022-11-03 03:31:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25967 to 15323. [2022-11-03 03:31:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15323 states, 15280 states have (on average 2.181348167539267) internal successors, (33331), 15322 states have internal predecessors, (33331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15323 states to 15323 states and 33331 transitions. [2022-11-03 03:31:52,055 INFO L78 Accepts]: Start accepts. Automaton has 15323 states and 33331 transitions. Word has length 32 [2022-11-03 03:31:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:52,056 INFO L495 AbstractCegarLoop]: Abstraction has 15323 states and 33331 transitions. [2022-11-03 03:31:52,056 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) [2022-11-03 03:31:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 15323 states and 33331 transitions. [2022-11-03 03:31:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:31:52,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:52,061 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] [2022-11-03 03:31:52,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-03 03:31:52,061 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)] === [2022-11-03 03:31:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 221555862, now seen corresponding path program 11 times [2022-11-03 03:31:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:52,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394772579] [2022-11-03 03:31:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:31:53,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:53,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394772579] [2022-11-03 03:31:53,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394772579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:53,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:53,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:31:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099842877] [2022-11-03 03:31:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:53,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:31:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:31:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:53,766 INFO L87 Difference]: Start difference. First operand 15323 states and 33331 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) [2022-11-03 03:32:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:01,198 INFO L93 Difference]: Finished difference Result 25284 states and 53823 transitions. [2022-11-03 03:32:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-03 03:32:01,199 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 [2022-11-03 03:32:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:01,252 INFO L225 Difference]: With dead ends: 25284 [2022-11-03 03:32:01,252 INFO L226 Difference]: Without dead ends: 25277 [2022-11-03 03:32:01,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=481, Invalid=1325, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 03:32:01,253 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 990 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 4353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:01,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1022 Invalid, 4353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 03:32:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25277 states. [2022-11-03 03:32:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25277 to 15392. [2022-11-03 03:32:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15392 states, 15349 states have (on average 2.181119291159033) internal successors, (33478), 15391 states have internal predecessors, (33478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15392 states to 15392 states and 33478 transitions. [2022-11-03 03:32:01,677 INFO L78 Accepts]: Start accepts. Automaton has 15392 states and 33478 transitions. Word has length 32 [2022-11-03 03:32:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:01,677 INFO L495 AbstractCegarLoop]: Abstraction has 15392 states and 33478 transitions. [2022-11-03 03:32:01,677 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) [2022-11-03 03:32:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand 15392 states and 33478 transitions. [2022-11-03 03:32:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:01,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:01,681 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] [2022-11-03 03:32:01,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-03 03:32:01,682 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:32:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:01,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2006140358, now seen corresponding path program 12 times [2022-11-03 03:32:01,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:01,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351223533] [2022-11-03 03:32:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:01,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:02,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351223533] [2022-11-03 03:32:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351223533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:02,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:02,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264799930] [2022-11-03 03:32:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:02,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:02,652 INFO L87 Difference]: Start difference. First operand 15392 states and 33478 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) [2022-11-03 03:32:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:11,175 INFO L93 Difference]: Finished difference Result 28148 states and 59639 transitions. [2022-11-03 03:32:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-03 03:32:11,176 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 [2022-11-03 03:32:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:11,233 INFO L225 Difference]: With dead ends: 28148 [2022-11-03 03:32:11,233 INFO L226 Difference]: Without dead ends: 28141 [2022-11-03 03:32:11,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=438, Invalid=1454, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 03:32:11,235 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 889 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 6346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:11,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1700 Invalid, 6346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 03:32:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28141 states. [2022-11-03 03:32:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28141 to 16155. [2022-11-03 03:32:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16155 states, 16112 states have (on average 2.1827830188679247) internal successors, (35169), 16154 states have internal predecessors, (35169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16155 states to 16155 states and 35169 transitions. [2022-11-03 03:32:11,576 INFO L78 Accepts]: Start accepts. Automaton has 16155 states and 35169 transitions. Word has length 32 [2022-11-03 03:32:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:11,576 INFO L495 AbstractCegarLoop]: Abstraction has 16155 states and 35169 transitions. [2022-11-03 03:32:11,576 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) [2022-11-03 03:32:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 16155 states and 35169 transitions. [2022-11-03 03:32:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:11,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:11,581 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] [2022-11-03 03:32:11,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-03 03:32:11,581 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:32:11,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:11,582 INFO L85 PathProgramCache]: Analyzing trace with hash 695219508, now seen corresponding path program 21 times [2022-11-03 03:32:11,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:11,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422993204] [2022-11-03 03:32:11,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:11,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:13,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:13,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422993204] [2022-11-03 03:32:13,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422993204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:13,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:13,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708160038] [2022-11-03 03:32:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:13,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:13,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:13,240 INFO L87 Difference]: Start difference. First operand 16155 states and 35169 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) [2022-11-03 03:32:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:19,863 INFO L93 Difference]: Finished difference Result 23626 states and 50397 transitions. [2022-11-03 03:32:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:32:19,863 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 [2022-11-03 03:32:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:19,909 INFO L225 Difference]: With dead ends: 23626 [2022-11-03 03:32:19,909 INFO L226 Difference]: Without dead ends: 23626 [2022-11-03 03:32:19,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:32:19,910 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 919 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 4397 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:19,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1855 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4397 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:32:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23626 states. [2022-11-03 03:32:20,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23626 to 16389. [2022-11-03 03:32:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16389 states, 16346 states have (on average 2.1822464211427874) internal successors, (35671), 16388 states have internal predecessors, (35671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 35671 transitions. [2022-11-03 03:32:20,229 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 35671 transitions. Word has length 32 [2022-11-03 03:32:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:20,230 INFO L495 AbstractCegarLoop]: Abstraction has 16389 states and 35671 transitions. [2022-11-03 03:32:20,230 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) [2022-11-03 03:32:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 35671 transitions. [2022-11-03 03:32:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:20,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:20,236 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] [2022-11-03 03:32:20,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-03 03:32:20,236 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)] === [2022-11-03 03:32:20,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 694996308, now seen corresponding path program 22 times [2022-11-03 03:32:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278548641] [2022-11-03 03:32:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:21,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:21,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278548641] [2022-11-03 03:32:21,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278548641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:21,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:21,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 03:32:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256068580] [2022-11-03 03:32:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:21,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 03:32:21,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 03:32:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:32:21,477 INFO L87 Difference]: Start difference. First operand 16389 states and 35671 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:32:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:26,236 INFO L93 Difference]: Finished difference Result 21318 states and 45770 transitions. [2022-11-03 03:32:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:32:26,237 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 [2022-11-03 03:32:26,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:26,276 INFO L225 Difference]: With dead ends: 21318 [2022-11-03 03:32:26,276 INFO L226 Difference]: Without dead ends: 21318 [2022-11-03 03:32:26,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:32:26,277 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 662 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 3727 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:26,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1346 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3727 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 03:32:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21318 states. [2022-11-03 03:32:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21318 to 15837. [2022-11-03 03:32:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15837 states, 15794 states have (on average 2.181714575155122) internal successors, (34458), 15836 states have internal predecessors, (34458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15837 states to 15837 states and 34458 transitions. [2022-11-03 03:32:26,581 INFO L78 Accepts]: Start accepts. Automaton has 15837 states and 34458 transitions. Word has length 32 [2022-11-03 03:32:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:26,582 INFO L495 AbstractCegarLoop]: Abstraction has 15837 states and 34458 transitions. [2022-11-03 03:32:26,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:32:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15837 states and 34458 transitions. [2022-11-03 03:32:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:26,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:26,588 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] [2022-11-03 03:32:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-03 03:32:26,588 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)] === [2022-11-03 03:32:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:26,588 INFO L85 PathProgramCache]: Analyzing trace with hash 689726802, now seen corresponding path program 23 times [2022-11-03 03:32:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:26,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797720291] [2022-11-03 03:32:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:26,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:28,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:28,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797720291] [2022-11-03 03:32:28,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797720291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:28,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:28,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:28,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856829892] [2022-11-03 03:32:28,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:28,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:28,171 INFO L87 Difference]: Start difference. First operand 15837 states and 34458 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) [2022-11-03 03:32:32,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:32,937 INFO L93 Difference]: Finished difference Result 23174 states and 49543 transitions. [2022-11-03 03:32:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:32:32,937 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 [2022-11-03 03:32:32,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:32,981 INFO L225 Difference]: With dead ends: 23174 [2022-11-03 03:32:32,981 INFO L226 Difference]: Without dead ends: 23174 [2022-11-03 03:32:32,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:32:32,982 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 641 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 3206 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:32,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1676 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3206 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 03:32:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23174 states. [2022-11-03 03:32:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23174 to 15846. [2022-11-03 03:32:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15846 states, 15803 states have (on average 2.1816110865025626) internal successors, (34476), 15845 states have internal predecessors, (34476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15846 states to 15846 states and 34476 transitions. [2022-11-03 03:32:33,370 INFO L78 Accepts]: Start accepts. Automaton has 15846 states and 34476 transitions. Word has length 32 [2022-11-03 03:32:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:33,370 INFO L495 AbstractCegarLoop]: Abstraction has 15846 states and 34476 transitions. [2022-11-03 03:32:33,371 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) [2022-11-03 03:32:33,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15846 states and 34476 transitions. [2022-11-03 03:32:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:33,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:33,375 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] [2022-11-03 03:32:33,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-03 03:32:33,376 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)] === [2022-11-03 03:32:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 689503602, now seen corresponding path program 24 times [2022-11-03 03:32:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:33,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584013091] [2022-11-03 03:32:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:33,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:35,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:35,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584013091] [2022-11-03 03:32:35,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584013091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:35,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:35,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:35,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845358628] [2022-11-03 03:32:35,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:35,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:35,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:35,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:35,240 INFO L87 Difference]: Start difference. First operand 15846 states and 34476 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) [2022-11-03 03:32:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:41,034 INFO L93 Difference]: Finished difference Result 23150 states and 49495 transitions. [2022-11-03 03:32:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:32:41,034 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 [2022-11-03 03:32:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:41,076 INFO L225 Difference]: With dead ends: 23150 [2022-11-03 03:32:41,077 INFO L226 Difference]: Without dead ends: 23150 [2022-11-03 03:32:41,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:32:41,077 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 738 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:41,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1561 Invalid, 3780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3697 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:32:41,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23150 states. [2022-11-03 03:32:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23150 to 15834. [2022-11-03 03:32:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15834 states, 15791 states have (on average 2.1817490975872333) internal successors, (34452), 15833 states have internal predecessors, (34452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15834 states to 15834 states and 34452 transitions. [2022-11-03 03:32:41,395 INFO L78 Accepts]: Start accepts. Automaton has 15834 states and 34452 transitions. Word has length 32 [2022-11-03 03:32:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:41,396 INFO L495 AbstractCegarLoop]: Abstraction has 15834 states and 34452 transitions. [2022-11-03 03:32:41,396 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) [2022-11-03 03:32:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 15834 states and 34452 transitions. [2022-11-03 03:32:41,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:41,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:41,401 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] [2022-11-03 03:32:41,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-03 03:32:41,401 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)] === [2022-11-03 03:32:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:41,402 INFO L85 PathProgramCache]: Analyzing trace with hash 802333260, now seen corresponding path program 25 times [2022-11-03 03:32:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:41,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166920731] [2022-11-03 03:32:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:43,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:43,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166920731] [2022-11-03 03:32:43,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166920731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:43,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:43,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:43,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002317846] [2022-11-03 03:32:43,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:43,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:43,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:43,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:43,224 INFO L87 Difference]: Start difference. First operand 15834 states and 34452 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) [2022-11-03 03:32:50,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:50,341 INFO L93 Difference]: Finished difference Result 23106 states and 49407 transitions. [2022-11-03 03:32:50,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:32:50,342 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 [2022-11-03 03:32:50,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:50,385 INFO L225 Difference]: With dead ends: 23106 [2022-11-03 03:32:50,385 INFO L226 Difference]: Without dead ends: 23106 [2022-11-03 03:32:50,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 03:32:50,386 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 877 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 4884 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 4968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:50,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1583 Invalid, 4968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4884 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 03:32:50,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23106 states. [2022-11-03 03:32:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23106 to 15836. [2022-11-03 03:32:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15836 states, 15793 states have (on average 2.181726081175204) internal successors, (34456), 15835 states have internal predecessors, (34456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15836 states to 15836 states and 34456 transitions. [2022-11-03 03:32:50,844 INFO L78 Accepts]: Start accepts. Automaton has 15836 states and 34456 transitions. Word has length 32 [2022-11-03 03:32:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:50,845 INFO L495 AbstractCegarLoop]: Abstraction has 15836 states and 34456 transitions. [2022-11-03 03:32:50,845 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) [2022-11-03 03:32:50,845 INFO L276 IsEmpty]: Start isEmpty. Operand 15836 states and 34456 transitions. [2022-11-03 03:32:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:50,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:50,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:50,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-03 03:32:50,849 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)] === [2022-11-03 03:32:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash 802110060, now seen corresponding path program 26 times [2022-11-03 03:32:50,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:50,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723409936] [2022-11-03 03:32:50,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:50,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:52,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:52,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723409936] [2022-11-03 03:32:52,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723409936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:52,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:52,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:32:52,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103613358] [2022-11-03 03:32:52,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:52,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:32:52,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:52,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:32:52,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:52,449 INFO L87 Difference]: Start difference. First operand 15836 states and 34456 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) [2022-11-03 03:32:58,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:58,277 INFO L93 Difference]: Finished difference Result 23118 states and 49431 transitions. [2022-11-03 03:32:58,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:32:58,278 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 [2022-11-03 03:32:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:58,319 INFO L225 Difference]: With dead ends: 23118 [2022-11-03 03:32:58,319 INFO L226 Difference]: Without dead ends: 23118 [2022-11-03 03:32:58,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:32:58,320 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 787 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:58,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1564 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 03:32:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23118 states. [2022-11-03 03:32:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23118 to 15832. [2022-11-03 03:32:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15832 states, 15789 states have (on average 2.1817721198302618) internal successors, (34448), 15831 states have internal predecessors, (34448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15832 states to 15832 states and 34448 transitions. [2022-11-03 03:32:58,649 INFO L78 Accepts]: Start accepts. Automaton has 15832 states and 34448 transitions. Word has length 32 [2022-11-03 03:32:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:58,649 INFO L495 AbstractCegarLoop]: Abstraction has 15832 states and 34448 transitions. [2022-11-03 03:32:58,649 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) [2022-11-03 03:32:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand 15832 states and 34448 transitions. [2022-11-03 03:32:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:32:58,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:58,655 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] [2022-11-03 03:32:58,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-03 03:32:58,656 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)] === [2022-11-03 03:32:58,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash 475898610, now seen corresponding path program 27 times [2022-11-03 03:32:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:58,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130896362] [2022-11-03 03:32:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:58,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:00,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:00,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130896362] [2022-11-03 03:33:00,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130896362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:00,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:00,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:00,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166684538] [2022-11-03 03:33:00,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:00,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:00,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:00,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:00,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:00,145 INFO L87 Difference]: Start difference. First operand 15832 states and 34448 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) [2022-11-03 03:33:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:07,682 INFO L93 Difference]: Finished difference Result 23074 states and 49343 transitions. [2022-11-03 03:33:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:33:07,683 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 [2022-11-03 03:33:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:07,726 INFO L225 Difference]: With dead ends: 23074 [2022-11-03 03:33:07,726 INFO L226 Difference]: Without dead ends: 23074 [2022-11-03 03:33:07,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:33:07,727 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 866 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 5102 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 5176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:07,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1587 Invalid, 5176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5102 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 03:33:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23074 states. [2022-11-03 03:33:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23074 to 15323. [2022-11-03 03:33:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15323 states, 15280 states have (on average 2.181086387434555) internal successors, (33327), 15322 states have internal predecessors, (33327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15323 states to 15323 states and 33327 transitions. [2022-11-03 03:33:08,029 INFO L78 Accepts]: Start accepts. Automaton has 15323 states and 33327 transitions. Word has length 32 [2022-11-03 03:33:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 15323 states and 33327 transitions. [2022-11-03 03:33:08,030 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) [2022-11-03 03:33:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 15323 states and 33327 transitions. [2022-11-03 03:33:08,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:08,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:08,036 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] [2022-11-03 03:33:08,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-03 03:33:08,036 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:33:08,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:08,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2086118600, now seen corresponding path program 13 times [2022-11-03 03:33:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:08,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654904322] [2022-11-03 03:33:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:08,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:09,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:09,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:09,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654904322] [2022-11-03 03:33:09,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654904322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:09,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:09,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974800880] [2022-11-03 03:33:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:09,522 INFO L87 Difference]: Start difference. First operand 15323 states and 33327 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) [2022-11-03 03:33:17,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:17,053 INFO L93 Difference]: Finished difference Result 25592 states and 54468 transitions. [2022-11-03 03:33:17,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-03 03:33:17,054 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 [2022-11-03 03:33:17,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:17,105 INFO L225 Difference]: With dead ends: 25592 [2022-11-03 03:33:17,105 INFO L226 Difference]: Without dead ends: 25588 [2022-11-03 03:33:17,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=494, Invalid=1398, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 03:33:17,106 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 923 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 4585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:17,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1156 Invalid, 4585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 3859 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:33:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25588 states. [2022-11-03 03:33:17,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25588 to 15213. [2022-11-03 03:33:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15213 states, 15170 states have (on average 2.1809492419248517) internal successors, (33085), 15212 states have internal predecessors, (33085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15213 states to 15213 states and 33085 transitions. [2022-11-03 03:33:17,493 INFO L78 Accepts]: Start accepts. Automaton has 15213 states and 33085 transitions. Word has length 32 [2022-11-03 03:33:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:17,494 INFO L495 AbstractCegarLoop]: Abstraction has 15213 states and 33085 transitions. [2022-11-03 03:33:17,494 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) [2022-11-03 03:33:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 15213 states and 33085 transitions. [2022-11-03 03:33:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:17,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:17,498 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] [2022-11-03 03:33:17,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-03 03:33:17,499 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:33:17,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:17,500 INFO L85 PathProgramCache]: Analyzing trace with hash -16271936, now seen corresponding path program 14 times [2022-11-03 03:33:17,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:17,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192099195] [2022-11-03 03:33:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:17,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:18,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:18,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192099195] [2022-11-03 03:33:18,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192099195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:18,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:18,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:18,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052008350] [2022-11-03 03:33:18,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:18,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:18,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:18,711 INFO L87 Difference]: Start difference. First operand 15213 states and 33085 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) [2022-11-03 03:33:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:26,673 INFO L93 Difference]: Finished difference Result 27878 states and 58906 transitions. [2022-11-03 03:33:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:33:26,673 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 [2022-11-03 03:33:26,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:26,740 INFO L225 Difference]: With dead ends: 27878 [2022-11-03 03:33:26,740 INFO L226 Difference]: Without dead ends: 27871 [2022-11-03 03:33:26,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=537, Invalid=1815, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:33:26,741 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1200 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 4109 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 5013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 4109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:26,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1510 Invalid, 5013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 4109 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 03:33:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27871 states. [2022-11-03 03:33:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27871 to 16089. [2022-11-03 03:33:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 16046 states have (on average 2.181727533341643) internal successors, (35008), 16088 states have internal predecessors, (35008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 35008 transitions. [2022-11-03 03:33:27,149 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 35008 transitions. Word has length 32 [2022-11-03 03:33:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:27,150 INFO L495 AbstractCegarLoop]: Abstraction has 16089 states and 35008 transitions. [2022-11-03 03:33:27,150 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) [2022-11-03 03:33:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 35008 transitions. [2022-11-03 03:33:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:27,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:27,157 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] [2022-11-03 03:33:27,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-03 03:33:27,158 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)] === [2022-11-03 03:33:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1327192786, now seen corresponding path program 28 times [2022-11-03 03:33:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:27,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230307484] [2022-11-03 03:33:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:28,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:28,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230307484] [2022-11-03 03:33:28,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230307484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:28,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:28,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:28,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372627487] [2022-11-03 03:33:28,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:28,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:28,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:28,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:28,634 INFO L87 Difference]: Start difference. First operand 16089 states and 35008 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) [2022-11-03 03:33:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:34,802 INFO L93 Difference]: Finished difference Result 22936 states and 48827 transitions. [2022-11-03 03:33:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:33:34,803 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 [2022-11-03 03:33:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:34,845 INFO L225 Difference]: With dead ends: 22936 [2022-11-03 03:33:34,846 INFO L226 Difference]: Without dead ends: 22936 [2022-11-03 03:33:34,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:33:34,846 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 993 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 4352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:34,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1785 Invalid, 4352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:33:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22936 states. [2022-11-03 03:33:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22936 to 16105. [2022-11-03 03:33:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16105 states, 16062 states have (on average 2.1815465072842732) internal successors, (35040), 16104 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) [2022-11-03 03:33:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16105 states to 16105 states and 35040 transitions. [2022-11-03 03:33:35,169 INFO L78 Accepts]: Start accepts. Automaton has 16105 states and 35040 transitions. Word has length 32 [2022-11-03 03:33:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:35,169 INFO L495 AbstractCegarLoop]: Abstraction has 16105 states and 35040 transitions. [2022-11-03 03:33:35,170 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) [2022-11-03 03:33:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16105 states and 35040 transitions. [2022-11-03 03:33:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:35,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:35,174 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] [2022-11-03 03:33:35,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-03 03:33:35,174 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)] === [2022-11-03 03:33:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1327415986, now seen corresponding path program 29 times [2022-11-03 03:33:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:35,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867660985] [2022-11-03 03:33:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:35,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:36,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:36,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867660985] [2022-11-03 03:33:36,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867660985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:36,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:36,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:36,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271863547] [2022-11-03 03:33:36,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:36,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:36,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:36,955 INFO L87 Difference]: Start difference. First operand 16105 states and 35040 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) [2022-11-03 03:33:43,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:43,803 INFO L93 Difference]: Finished difference Result 22916 states and 48787 transitions. [2022-11-03 03:33:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:33:43,804 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 [2022-11-03 03:33:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:43,850 INFO L225 Difference]: With dead ends: 22916 [2022-11-03 03:33:43,850 INFO L226 Difference]: Without dead ends: 22916 [2022-11-03 03:33:43,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:33:43,851 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 984 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:43,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 1787 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4483 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-03 03:33:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22916 states. [2022-11-03 03:33:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22916 to 15650. [2022-11-03 03:33:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15650 states, 15607 states have (on average 2.1815211123213945) internal successors, (34047), 15649 states have internal predecessors, (34047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15650 states to 15650 states and 34047 transitions. [2022-11-03 03:33:44,217 INFO L78 Accepts]: Start accepts. Automaton has 15650 states and 34047 transitions. Word has length 32 [2022-11-03 03:33:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:44,217 INFO L495 AbstractCegarLoop]: Abstraction has 15650 states and 34047 transitions. [2022-11-03 03:33:44,218 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) [2022-11-03 03:33:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 15650 states and 34047 transitions. [2022-11-03 03:33:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:44,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:44,224 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] [2022-11-03 03:33:44,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-03 03:33:44,224 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:33:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1201335214, now seen corresponding path program 30 times [2022-11-03 03:33:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:44,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31115041] [2022-11-03 03:33:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:45,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:45,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31115041] [2022-11-03 03:33:45,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31115041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:45,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:45,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:45,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629660669] [2022-11-03 03:33:45,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:45,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:45,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:45,892 INFO L87 Difference]: Start difference. First operand 15650 states and 34047 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) [2022-11-03 03:33:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:50,631 INFO L93 Difference]: Finished difference Result 23030 states and 49019 transitions. [2022-11-03 03:33:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:33:50,632 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 [2022-11-03 03:33:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:50,680 INFO L225 Difference]: With dead ends: 23030 [2022-11-03 03:33:50,680 INFO L226 Difference]: Without dead ends: 23030 [2022-11-03 03:33:50,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 03:33:50,681 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 724 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 3259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:50,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1792 Invalid, 3259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3199 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 03:33:50,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23030 states. [2022-11-03 03:33:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23030 to 15658. [2022-11-03 03:33:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15658 states, 15615 states have (on average 2.181492154979187) internal successors, (34064), 15657 states have internal predecessors, (34064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15658 states to 15658 states and 34064 transitions. [2022-11-03 03:33:50,993 INFO L78 Accepts]: Start accepts. Automaton has 15658 states and 34064 transitions. Word has length 32 [2022-11-03 03:33:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:50,993 INFO L495 AbstractCegarLoop]: Abstraction has 15658 states and 34064 transitions. [2022-11-03 03:33:50,993 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) [2022-11-03 03:33:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states and 34064 transitions. [2022-11-03 03:33:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:50,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:50,998 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] [2022-11-03 03:33:50,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-03 03:33:50,998 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)] === [2022-11-03 03:33:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1201558414, now seen corresponding path program 31 times [2022-11-03 03:33:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:50,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042664210] [2022-11-03 03:33:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:50,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:52,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:52,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042664210] [2022-11-03 03:33:52,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042664210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:52,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:52,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:52,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657888550] [2022-11-03 03:33:52,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:52,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:52,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:52,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:52,701 INFO L87 Difference]: Start difference. First operand 15658 states and 34064 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) [2022-11-03 03:33:57,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:57,012 INFO L93 Difference]: Finished difference Result 23016 states and 48991 transitions. [2022-11-03 03:33:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:33:57,013 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 [2022-11-03 03:33:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:57,058 INFO L225 Difference]: With dead ends: 23016 [2022-11-03 03:33:57,058 INFO L226 Difference]: Without dead ends: 23016 [2022-11-03 03:33:57,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 03:33:57,058 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 820 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:57,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1630 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 03:33:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23016 states. [2022-11-03 03:33:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23016 to 15652. [2022-11-03 03:33:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15652 states, 15609 states have (on average 2.181561919405471) internal successors, (34052), 15651 states have internal predecessors, (34052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:33:57,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15652 states to 15652 states and 34052 transitions. [2022-11-03 03:33:57,376 INFO L78 Accepts]: Start accepts. Automaton has 15652 states and 34052 transitions. Word has length 32 [2022-11-03 03:33:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:57,376 INFO L495 AbstractCegarLoop]: Abstraction has 15652 states and 34052 transitions. [2022-11-03 03:33:57,376 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) [2022-11-03 03:33:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand 15652 states and 34052 transitions. [2022-11-03 03:33:57,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:33:57,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:57,381 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] [2022-11-03 03:33:57,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-03 03:33:57,381 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)] === [2022-11-03 03:33:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:57,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1088728756, now seen corresponding path program 32 times [2022-11-03 03:33:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:57,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975674961] [2022-11-03 03:33:57,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:33:58,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975674961] [2022-11-03 03:33:58,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975674961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:58,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:58,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:33:58,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029906587] [2022-11-03 03:33:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:58,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:33:58,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:33:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:33:58,841 INFO L87 Difference]: Start difference. First operand 15652 states and 34052 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) [2022-11-03 03:34:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:05,867 INFO L93 Difference]: Finished difference Result 22980 states and 48919 transitions. [2022-11-03 03:34:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 03:34:05,867 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 [2022-11-03 03:34:05,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:05,911 INFO L225 Difference]: With dead ends: 22980 [2022-11-03 03:34:05,911 INFO L226 Difference]: Without dead ends: 22980 [2022-11-03 03:34:05,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:34:05,912 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 951 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 4875 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:05,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1671 Invalid, 4942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4875 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 03:34:05,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22980 states. [2022-11-03 03:34:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22980 to 15660. [2022-11-03 03:34:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15660 states, 15617 states have (on average 2.181596977652558) internal successors, (34070), 15659 states have internal predecessors, (34070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15660 states to 15660 states and 34070 transitions. [2022-11-03 03:34:06,225 INFO L78 Accepts]: Start accepts. Automaton has 15660 states and 34070 transitions. Word has length 32 [2022-11-03 03:34:06,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:06,225 INFO L495 AbstractCegarLoop]: Abstraction has 15660 states and 34070 transitions. [2022-11-03 03:34:06,225 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) [2022-11-03 03:34:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 15660 states and 34070 transitions. [2022-11-03 03:34:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:06,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:06,230 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] [2022-11-03 03:34:06,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-03 03:34:06,230 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)] === [2022-11-03 03:34:06,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1088951956, now seen corresponding path program 33 times [2022-11-03 03:34:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:06,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362068479] [2022-11-03 03:34:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:07,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:07,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362068479] [2022-11-03 03:34:07,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362068479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:07,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:07,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:07,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071572260] [2022-11-03 03:34:07,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:07,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:07,926 INFO L87 Difference]: Start difference. First operand 15660 states and 34070 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) [2022-11-03 03:34:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:13,680 INFO L93 Difference]: Finished difference Result 22992 states and 48943 transitions. [2022-11-03 03:34:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:34:13,681 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 [2022-11-03 03:34:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:13,724 INFO L225 Difference]: With dead ends: 22992 [2022-11-03 03:34:13,724 INFO L226 Difference]: Without dead ends: 22992 [2022-11-03 03:34:13,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=251, Invalid=805, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 03:34:13,725 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 761 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 4090 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 4152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:13,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1809 Invalid, 4152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4090 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:34:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22992 states. [2022-11-03 03:34:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22992 to 15658. [2022-11-03 03:34:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15658 states, 15615 states have (on average 2.181620236951649) internal successors, (34066), 15657 states have internal predecessors, (34066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15658 states to 15658 states and 34066 transitions. [2022-11-03 03:34:14,164 INFO L78 Accepts]: Start accepts. Automaton has 15658 states and 34066 transitions. Word has length 32 [2022-11-03 03:34:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:14,164 INFO L495 AbstractCegarLoop]: Abstraction has 15658 states and 34066 transitions. [2022-11-03 03:34:14,165 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) [2022-11-03 03:34:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states and 34066 transitions. [2022-11-03 03:34:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:14,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:14,169 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] [2022-11-03 03:34:14,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-03 03:34:14,169 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)] === [2022-11-03 03:34:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1415163406, now seen corresponding path program 34 times [2022-11-03 03:34:14,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:14,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611251478] [2022-11-03 03:34:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:14,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:15,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:15,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:15,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611251478] [2022-11-03 03:34:15,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611251478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:15,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:15,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:15,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620617589] [2022-11-03 03:34:15,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:15,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:15,909 INFO L87 Difference]: Start difference. First operand 15658 states and 34066 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) [2022-11-03 03:34:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:22,064 INFO L93 Difference]: Finished difference Result 22958 states and 48875 transitions. [2022-11-03 03:34:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 03:34:22,067 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 [2022-11-03 03:34:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:22,117 INFO L225 Difference]: With dead ends: 22958 [2022-11-03 03:34:22,118 INFO L226 Difference]: Without dead ends: 22958 [2022-11-03 03:34:22,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 03:34:22,119 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 947 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:22,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1656 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 03:34:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22958 states. [2022-11-03 03:34:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22958 to 15658. [2022-11-03 03:34:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15658 states, 15615 states have (on average 2.1816842779378804) internal successors, (34067), 15657 states have internal predecessors, (34067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15658 states to 15658 states and 34067 transitions. [2022-11-03 03:34:22,495 INFO L78 Accepts]: Start accepts. Automaton has 15658 states and 34067 transitions. Word has length 32 [2022-11-03 03:34:22,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:22,496 INFO L495 AbstractCegarLoop]: Abstraction has 15658 states and 34067 transitions. [2022-11-03 03:34:22,496 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) [2022-11-03 03:34:22,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states and 34067 transitions. [2022-11-03 03:34:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:22,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:22,500 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] [2022-11-03 03:34:22,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-03 03:34:22,501 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:34:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1061581358, now seen corresponding path program 35 times [2022-11-03 03:34:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085504822] [2022-11-03 03:34:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:23,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:23,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085504822] [2022-11-03 03:34:23,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085504822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:23,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:23,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:23,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548629290] [2022-11-03 03:34:23,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:23,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:23,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:23,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:23,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:23,991 INFO L87 Difference]: Start difference. First operand 15658 states and 34067 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) [2022-11-03 03:34:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:28,262 INFO L93 Difference]: Finished difference Result 21270 states and 45517 transitions. [2022-11-03 03:34:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 03:34:28,262 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 [2022-11-03 03:34:28,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:28,300 INFO L225 Difference]: With dead ends: 21270 [2022-11-03 03:34:28,300 INFO L226 Difference]: Without dead ends: 21270 [2022-11-03 03:34:28,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:34:28,301 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 613 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 3094 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:28,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1287 Invalid, 3150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3094 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 03:34:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21270 states. [2022-11-03 03:34:28,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21270 to 15664. [2022-11-03 03:34:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15664 states, 15621 states have (on average 2.181742526086678) internal successors, (34081), 15663 states have internal predecessors, (34081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15664 states to 15664 states and 34081 transitions. [2022-11-03 03:34:28,587 INFO L78 Accepts]: Start accepts. Automaton has 15664 states and 34081 transitions. Word has length 32 [2022-11-03 03:34:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:28,587 INFO L495 AbstractCegarLoop]: Abstraction has 15664 states and 34081 transitions. [2022-11-03 03:34:28,588 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) [2022-11-03 03:34:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 15664 states and 34081 transitions. [2022-11-03 03:34:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:28,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:28,592 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] [2022-11-03 03:34:28,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-03 03:34:28,592 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)] === [2022-11-03 03:34:28,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1061804558, now seen corresponding path program 36 times [2022-11-03 03:34:28,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:28,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713849951] [2022-11-03 03:34:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:30,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:30,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713849951] [2022-11-03 03:34:30,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713849951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:30,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:30,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:30,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753065814] [2022-11-03 03:34:30,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:30,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:30,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:30,425 INFO L87 Difference]: Start difference. First operand 15664 states and 34081 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) [2022-11-03 03:34:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:35,114 INFO L93 Difference]: Finished difference Result 21268 states and 45513 transitions. [2022-11-03 03:34:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 03:34:35,114 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 [2022-11-03 03:34:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:35,152 INFO L225 Difference]: With dead ends: 21268 [2022-11-03 03:34:35,152 INFO L226 Difference]: Without dead ends: 21268 [2022-11-03 03:34:35,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:34:35,153 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 600 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 3434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:35,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1290 Invalid, 3434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3380 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 03:34:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21268 states. [2022-11-03 03:34:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21268 to 15660. [2022-11-03 03:34:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15660 states, 15617 states have (on average 2.1817250432221296) internal successors, (34072), 15659 states have internal predecessors, (34072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15660 states to 15660 states and 34072 transitions. [2022-11-03 03:34:35,482 INFO L78 Accepts]: Start accepts. Automaton has 15660 states and 34072 transitions. Word has length 32 [2022-11-03 03:34:35,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:35,483 INFO L495 AbstractCegarLoop]: Abstraction has 15660 states and 34072 transitions. [2022-11-03 03:34:35,483 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) [2022-11-03 03:34:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 15660 states and 34072 transitions. [2022-11-03 03:34:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:35,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:35,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:34:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-03 03:34:35,488 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:34:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1952076202, now seen corresponding path program 37 times [2022-11-03 03:34:35,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:35,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87912406] [2022-11-03 03:34:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:35,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:36,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:36,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87912406] [2022-11-03 03:34:36,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87912406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:36,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:36,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:36,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191364835] [2022-11-03 03:34:36,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:36,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:36,866 INFO L87 Difference]: Start difference. First operand 15660 states and 34072 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) [2022-11-03 03:34:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:41,597 INFO L93 Difference]: Finished difference Result 21284 states and 45545 transitions. [2022-11-03 03:34:41,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 03:34:41,597 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 [2022-11-03 03:34:41,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:41,635 INFO L225 Difference]: With dead ends: 21284 [2022-11-03 03:34:41,635 INFO L226 Difference]: Without dead ends: 21284 [2022-11-03 03:34:41,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-11-03 03:34:41,635 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 715 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 3488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1180 Invalid, 3488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 03:34:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21284 states. [2022-11-03 03:34:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21284 to 15664. [2022-11-03 03:34:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15664 states, 15621 states have (on average 2.1816785096984828) internal successors, (34080), 15663 states have internal predecessors, (34080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15664 states to 15664 states and 34080 transitions. [2022-11-03 03:34:41,937 INFO L78 Accepts]: Start accepts. Automaton has 15664 states and 34080 transitions. Word has length 32 [2022-11-03 03:34:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:41,938 INFO L495 AbstractCegarLoop]: Abstraction has 15664 states and 34080 transitions. [2022-11-03 03:34:41,938 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) [2022-11-03 03:34:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15664 states and 34080 transitions. [2022-11-03 03:34:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:41,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:41,943 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] [2022-11-03 03:34:41,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-03 03:34:41,943 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)] === [2022-11-03 03:34:41,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1951853002, now seen corresponding path program 38 times [2022-11-03 03:34:41,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:41,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886336091] [2022-11-03 03:34:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:43,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:43,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886336091] [2022-11-03 03:34:43,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886336091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:43,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:43,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:43,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434973829] [2022-11-03 03:34:43,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:43,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:43,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:43,556 INFO L87 Difference]: Start difference. First operand 15664 states and 34080 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) [2022-11-03 03:34:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:48,557 INFO L93 Difference]: Finished difference Result 21280 states and 45537 transitions. [2022-11-03 03:34:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:34:48,557 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 [2022-11-03 03:34:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:48,595 INFO L225 Difference]: With dead ends: 21280 [2022-11-03 03:34:48,595 INFO L226 Difference]: Without dead ends: 21280 [2022-11-03 03:34:48,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:34:48,595 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 596 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 3805 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 3860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:48,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1288 Invalid, 3860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3805 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-03 03:34:48,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21280 states. [2022-11-03 03:34:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21280 to 15658. [2022-11-03 03:34:48,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15658 states, 15615 states have (on average 2.1816842779378804) internal successors, (34067), 15657 states have internal predecessors, (34067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15658 states to 15658 states and 34067 transitions. [2022-11-03 03:34:48,879 INFO L78 Accepts]: Start accepts. Automaton has 15658 states and 34067 transitions. Word has length 32 [2022-11-03 03:34:48,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:48,880 INFO L495 AbstractCegarLoop]: Abstraction has 15658 states and 34067 transitions. [2022-11-03 03:34:48,880 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) [2022-11-03 03:34:48,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states and 34067 transitions. [2022-11-03 03:34:48,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:48,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:48,884 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] [2022-11-03 03:34:48,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-03 03:34:48,884 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:34:48,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:48,884 INFO L85 PathProgramCache]: Analyzing trace with hash 98529490, now seen corresponding path program 39 times [2022-11-03 03:34:48,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:48,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880993246] [2022-11-03 03:34:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:48,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:50,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:50,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880993246] [2022-11-03 03:34:50,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880993246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:50,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:50,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:50,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113750494] [2022-11-03 03:34:50,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:50,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:50,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:50,300 INFO L87 Difference]: Start difference. First operand 15658 states and 34067 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) [2022-11-03 03:34:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:55,099 INFO L93 Difference]: Finished difference Result 21290 states and 45557 transitions. [2022-11-03 03:34:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:34:55,099 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 [2022-11-03 03:34:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:55,137 INFO L225 Difference]: With dead ends: 21290 [2022-11-03 03:34:55,137 INFO L226 Difference]: Without dead ends: 21290 [2022-11-03 03:34:55,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:34:55,138 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 609 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 3528 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:55,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1277 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3528 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 03:34:55,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21290 states. [2022-11-03 03:34:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21290 to 15662. [2022-11-03 03:34:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15662 states, 15619 states have (on average 2.181637748895576) internal successors, (34075), 15661 states have internal predecessors, (34075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:34:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15662 states to 15662 states and 34075 transitions. [2022-11-03 03:34:55,455 INFO L78 Accepts]: Start accepts. Automaton has 15662 states and 34075 transitions. Word has length 32 [2022-11-03 03:34:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:55,455 INFO L495 AbstractCegarLoop]: Abstraction has 15662 states and 34075 transitions. [2022-11-03 03:34:55,456 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) [2022-11-03 03:34:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15662 states and 34075 transitions. [2022-11-03 03:34:55,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:34:55,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:55,460 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] [2022-11-03 03:34:55,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-03 03:34:55,460 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:34:55,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 98306290, now seen corresponding path program 40 times [2022-11-03 03:34:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:55,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119797319] [2022-11-03 03:34:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:55,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:34:57,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:57,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119797319] [2022-11-03 03:34:57,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119797319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:57,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:57,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:34:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772468649] [2022-11-03 03:34:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:57,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:34:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:57,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:34:57,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:34:57,234 INFO L87 Difference]: Start difference. First operand 15662 states and 34075 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) [2022-11-03 03:35:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:02,410 INFO L93 Difference]: Finished difference Result 21288 states and 45553 transitions. [2022-11-03 03:35:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:35:02,411 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 [2022-11-03 03:35:02,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:02,448 INFO L225 Difference]: With dead ends: 21288 [2022-11-03 03:35:02,448 INFO L226 Difference]: Without dead ends: 21288 [2022-11-03 03:35:02,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:35:02,449 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 704 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:02,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1170 Invalid, 3763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-03 03:35:02,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21288 states. [2022-11-03 03:35:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21288 to 15654. [2022-11-03 03:35:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15654 states, 15611 states have (on average 2.1816667734289923) internal successors, (34058), 15653 states have internal predecessors, (34058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:02,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15654 states to 15654 states and 34058 transitions. [2022-11-03 03:35:02,737 INFO L78 Accepts]: Start accepts. Automaton has 15654 states and 34058 transitions. Word has length 32 [2022-11-03 03:35:02,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:02,737 INFO L495 AbstractCegarLoop]: Abstraction has 15654 states and 34058 transitions. [2022-11-03 03:35:02,738 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) [2022-11-03 03:35:02,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15654 states and 34058 transitions. [2022-11-03 03:35:02,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:02,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:02,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:35:02,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-03 03:35:02,742 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)] === [2022-11-03 03:35:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:02,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1131566352, now seen corresponding path program 41 times [2022-11-03 03:35:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:02,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288077148] [2022-11-03 03:35:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:04,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:04,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288077148] [2022-11-03 03:35:04,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288077148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:04,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:04,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:04,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865181635] [2022-11-03 03:35:04,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:04,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:04,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:04,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:04,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:04,209 INFO L87 Difference]: Start difference. First operand 15654 states and 34058 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) [2022-11-03 03:35:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:10,438 INFO L93 Difference]: Finished difference Result 21254 states and 45481 transitions. [2022-11-03 03:35:10,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:35:10,439 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 [2022-11-03 03:35:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:10,483 INFO L225 Difference]: With dead ends: 21254 [2022-11-03 03:35:10,483 INFO L226 Difference]: Without dead ends: 21254 [2022-11-03 03:35:10,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:35:10,484 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 861 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 4411 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 4477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:10,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1188 Invalid, 4477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4411 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:35:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21254 states. [2022-11-03 03:35:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21254 to 15656. [2022-11-03 03:35:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15656 states, 15613 states have (on average 2.181643502209697) internal successors, (34062), 15655 states have internal predecessors, (34062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15656 states to 15656 states and 34062 transitions. [2022-11-03 03:35:10,783 INFO L78 Accepts]: Start accepts. Automaton has 15656 states and 34062 transitions. Word has length 32 [2022-11-03 03:35:10,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:10,783 INFO L495 AbstractCegarLoop]: Abstraction has 15656 states and 34062 transitions. [2022-11-03 03:35:10,783 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) [2022-11-03 03:35:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15656 states and 34062 transitions. [2022-11-03 03:35:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:10,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:10,788 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] [2022-11-03 03:35:10,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-03 03:35:10,788 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)] === [2022-11-03 03:35:10,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1131789552, now seen corresponding path program 42 times [2022-11-03 03:35:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:10,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524920344] [2022-11-03 03:35:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:12,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:12,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524920344] [2022-11-03 03:35:12,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524920344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:12,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:12,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:12,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888295472] [2022-11-03 03:35:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:12,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:12,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:12,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:12,745 INFO L87 Difference]: Start difference. First operand 15656 states and 34062 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) [2022-11-03 03:35:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:17,672 INFO L93 Difference]: Finished difference Result 21260 states and 45495 transitions. [2022-11-03 03:35:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 03:35:17,673 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 [2022-11-03 03:35:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:17,711 INFO L225 Difference]: With dead ends: 21260 [2022-11-03 03:35:17,711 INFO L226 Difference]: Without dead ends: 21260 [2022-11-03 03:35:17,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:35:17,712 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 755 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 3513 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:17,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1175 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3513 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 03:35:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21260 states. [2022-11-03 03:35:17,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21260 to 15656. [2022-11-03 03:35:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15656 states, 15613 states have (on average 2.181643502209697) internal successors, (34062), 15655 states have internal predecessors, (34062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:18,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15656 states to 15656 states and 34062 transitions. [2022-11-03 03:35:18,006 INFO L78 Accepts]: Start accepts. Automaton has 15656 states and 34062 transitions. Word has length 32 [2022-11-03 03:35:18,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:18,007 INFO L495 AbstractCegarLoop]: Abstraction has 15656 states and 34062 transitions. [2022-11-03 03:35:18,007 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) [2022-11-03 03:35:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 15656 states and 34062 transitions. [2022-11-03 03:35:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:18,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:18,012 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] [2022-11-03 03:35:18,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-03 03:35:18,013 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)] === [2022-11-03 03:35:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:18,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1882091208, now seen corresponding path program 43 times [2022-11-03 03:35:18,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:18,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885050807] [2022-11-03 03:35:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:18,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:19,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:19,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885050807] [2022-11-03 03:35:19,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885050807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:19,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579476205] [2022-11-03 03:35:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:19,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:19,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:19,564 INFO L87 Difference]: Start difference. First operand 15656 states and 34062 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) [2022-11-03 03:35:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:27,012 INFO L93 Difference]: Finished difference Result 21268 states and 45511 transitions. [2022-11-03 03:35:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 03:35:27,013 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 [2022-11-03 03:35:27,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:27,051 INFO L225 Difference]: With dead ends: 21268 [2022-11-03 03:35:27,051 INFO L226 Difference]: Without dead ends: 21268 [2022-11-03 03:35:27,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 03:35:27,052 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 753 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 5587 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 5587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:27,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1322 Invalid, 5653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 5587 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 03:35:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21268 states. [2022-11-03 03:35:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21268 to 15654. [2022-11-03 03:35:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15654 states, 15611 states have (on average 2.1816667734289923) internal successors, (34058), 15653 states have internal predecessors, (34058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15654 states to 15654 states and 34058 transitions. [2022-11-03 03:35:27,345 INFO L78 Accepts]: Start accepts. Automaton has 15654 states and 34058 transitions. Word has length 32 [2022-11-03 03:35:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:27,345 INFO L495 AbstractCegarLoop]: Abstraction has 15654 states and 34058 transitions. [2022-11-03 03:35:27,345 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) [2022-11-03 03:35:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 15654 states and 34058 transitions. [2022-11-03 03:35:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:27,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:27,351 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] [2022-11-03 03:35:27,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-03 03:35:27,352 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)] === [2022-11-03 03:35:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1881868008, now seen corresponding path program 44 times [2022-11-03 03:35:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:27,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878310391] [2022-11-03 03:35:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:27,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:29,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:29,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878310391] [2022-11-03 03:35:29,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878310391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:29,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:29,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:29,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028400020] [2022-11-03 03:35:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:29,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:29,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:29,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:29,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:29,175 INFO L87 Difference]: Start difference. First operand 15654 states and 34058 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) [2022-11-03 03:35:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:34,432 INFO L93 Difference]: Finished difference Result 21270 states and 45515 transitions. [2022-11-03 03:35:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 03:35:34,433 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 [2022-11-03 03:35:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:34,471 INFO L225 Difference]: With dead ends: 21270 [2022-11-03 03:35:34,471 INFO L226 Difference]: Without dead ends: 21270 [2022-11-03 03:35:34,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:35:34,472 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 652 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 3874 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 3930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:34,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1282 Invalid, 3930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3874 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 03:35:34,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21270 states. [2022-11-03 03:35:34,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21270 to 15650. [2022-11-03 03:35:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15650 states, 15607 states have (on average 2.1816492599474593) internal successors, (34049), 15649 states have internal predecessors, (34049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15650 states to 15650 states and 34049 transitions. [2022-11-03 03:35:34,825 INFO L78 Accepts]: Start accepts. Automaton has 15650 states and 34049 transitions. Word has length 32 [2022-11-03 03:35:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:34,825 INFO L495 AbstractCegarLoop]: Abstraction has 15650 states and 34049 transitions. [2022-11-03 03:35:34,825 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) [2022-11-03 03:35:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15650 states and 34049 transitions. [2022-11-03 03:35:34,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:34,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:34,833 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] [2022-11-03 03:35:34,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-03 03:35:34,833 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:35:34,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:34,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1949038862, now seen corresponding path program 45 times [2022-11-03 03:35:34,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:34,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137715682] [2022-11-03 03:35:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:34,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:36,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:36,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137715682] [2022-11-03 03:35:36,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137715682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:36,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:36,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591334627] [2022-11-03 03:35:36,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:36,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:36,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:36,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:36,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:36,733 INFO L87 Difference]: Start difference. First operand 15650 states and 34049 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) [2022-11-03 03:35:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:43,961 INFO L93 Difference]: Finished difference Result 21244 states and 45460 transitions. [2022-11-03 03:35:43,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:35:43,961 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 [2022-11-03 03:35:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:44,003 INFO L225 Difference]: With dead ends: 21244 [2022-11-03 03:35:44,003 INFO L226 Difference]: Without dead ends: 21244 [2022-11-03 03:35:44,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:35:44,003 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 849 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 4935 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 5004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:44,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1194 Invalid, 5004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4935 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 03:35:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21244 states. [2022-11-03 03:35:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21244 to 15642. [2022-11-03 03:35:44,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15642 states, 15599 states have (on average 2.181614206038849) internal successors, (34031), 15641 states have internal predecessors, (34031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:44,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15642 states to 15642 states and 34031 transitions. [2022-11-03 03:35:44,361 INFO L78 Accepts]: Start accepts. Automaton has 15642 states and 34031 transitions. Word has length 32 [2022-11-03 03:35:44,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:44,361 INFO L495 AbstractCegarLoop]: Abstraction has 15642 states and 34031 transitions. [2022-11-03 03:35:44,361 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) [2022-11-03 03:35:44,362 INFO L276 IsEmpty]: Start isEmpty. Operand 15642 states and 34031 transitions. [2022-11-03 03:35:44,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:44,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:44,367 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] [2022-11-03 03:35:44,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-03 03:35:44,367 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)] === [2022-11-03 03:35:44,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:44,368 INFO L85 PathProgramCache]: Analyzing trace with hash -484419328, now seen corresponding path program 15 times [2022-11-03 03:35:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:44,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428998018] [2022-11-03 03:35:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:44,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:45,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:45,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428998018] [2022-11-03 03:35:45,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428998018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:45,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:45,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216506286] [2022-11-03 03:35:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:45,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:45,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:45,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:45,742 INFO L87 Difference]: Start difference. First operand 15642 states and 34031 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) [2022-11-03 03:35:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:51,904 INFO L93 Difference]: Finished difference Result 26183 states and 55803 transitions. [2022-11-03 03:35:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:35:51,905 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 [2022-11-03 03:35:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:51,969 INFO L225 Difference]: With dead ends: 26183 [2022-11-03 03:35:51,969 INFO L226 Difference]: Without dead ends: 26179 [2022-11-03 03:35:51,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:35:51,970 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 778 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:51,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 935 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 03:35:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26179 states. [2022-11-03 03:35:52,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26179 to 16522. [2022-11-03 03:35:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16522 states, 16479 states have (on average 2.1884216275259423) internal successors, (36063), 16521 states have internal predecessors, (36063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16522 states to 16522 states and 36063 transitions. [2022-11-03 03:35:52,281 INFO L78 Accepts]: Start accepts. Automaton has 16522 states and 36063 transitions. Word has length 32 [2022-11-03 03:35:52,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:52,281 INFO L495 AbstractCegarLoop]: Abstraction has 16522 states and 36063 transitions. [2022-11-03 03:35:52,281 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) [2022-11-03 03:35:52,281 INFO L276 IsEmpty]: Start isEmpty. Operand 16522 states and 36063 transitions. [2022-11-03 03:35:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:52,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:52,285 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] [2022-11-03 03:35:52,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-03 03:35:52,286 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:35:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 334594032, now seen corresponding path program 46 times [2022-11-03 03:35:52,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:52,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323187948] [2022-11-03 03:35:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:52,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:35:53,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:53,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323187948] [2022-11-03 03:35:53,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323187948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:53,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:53,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:35:53,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511897048] [2022-11-03 03:35:53,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:53,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:35:53,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:53,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:35:53,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:35:53,730 INFO L87 Difference]: Start difference. First operand 16522 states and 36063 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) [2022-11-03 03:35:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:59,013 INFO L93 Difference]: Finished difference Result 23291 states and 49883 transitions. [2022-11-03 03:35:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:35:59,014 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 [2022-11-03 03:35:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:59,056 INFO L225 Difference]: With dead ends: 23291 [2022-11-03 03:35:59,056 INFO L226 Difference]: Without dead ends: 23291 [2022-11-03 03:35:59,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:35:59,056 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 784 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 3756 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:59,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1280 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3756 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 03:35:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23291 states. [2022-11-03 03:35:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23291 to 16516. [2022-11-03 03:35:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16516 states, 16473 states have (on average 2.1884902567838282) internal successors, (36051), 16515 states have internal predecessors, (36051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:35:59,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16516 states to 16516 states and 36051 transitions. [2022-11-03 03:35:59,390 INFO L78 Accepts]: Start accepts. Automaton has 16516 states and 36051 transitions. Word has length 32 [2022-11-03 03:35:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:59,391 INFO L495 AbstractCegarLoop]: Abstraction has 16516 states and 36051 transitions. [2022-11-03 03:35:59,391 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) [2022-11-03 03:35:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16516 states and 36051 transitions. [2022-11-03 03:35:59,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:35:59,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:59,395 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] [2022-11-03 03:35:59,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-03 03:35:59,396 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)] === [2022-11-03 03:35:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash 334370832, now seen corresponding path program 47 times [2022-11-03 03:35:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264947893] [2022-11-03 03:35:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:59,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:00,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:00,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264947893] [2022-11-03 03:36:00,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264947893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:00,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:00,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:00,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895814714] [2022-11-03 03:36:00,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:00,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:00,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:00,910 INFO L87 Difference]: Start difference. First operand 16516 states and 36051 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) [2022-11-03 03:36:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:07,262 INFO L93 Difference]: Finished difference Result 23279 states and 49859 transitions. [2022-11-03 03:36:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:36:07,263 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 [2022-11-03 03:36:07,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:07,306 INFO L225 Difference]: With dead ends: 23279 [2022-11-03 03:36:07,306 INFO L226 Difference]: Without dead ends: 23279 [2022-11-03 03:36:07,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:36:07,306 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 877 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 4354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:07,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1197 Invalid, 4354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 03:36:07,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23279 states. [2022-11-03 03:36:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23279 to 16516. [2022-11-03 03:36:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16516 states, 16473 states have (on average 2.1884902567838282) internal successors, (36051), 16515 states have internal predecessors, (36051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16516 states to 16516 states and 36051 transitions. [2022-11-03 03:36:07,615 INFO L78 Accepts]: Start accepts. Automaton has 16516 states and 36051 transitions. Word has length 32 [2022-11-03 03:36:07,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:07,615 INFO L495 AbstractCegarLoop]: Abstraction has 16516 states and 36051 transitions. [2022-11-03 03:36:07,616 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) [2022-11-03 03:36:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 16516 states and 36051 transitions. [2022-11-03 03:36:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:07,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:07,620 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] [2022-11-03 03:36:07,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-03 03:36:07,621 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)] === [2022-11-03 03:36:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1737560132, now seen corresponding path program 16 times [2022-11-03 03:36:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:07,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297967138] [2022-11-03 03:36:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:09,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:09,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297967138] [2022-11-03 03:36:09,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297967138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:09,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:09,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:09,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426117877] [2022-11-03 03:36:09,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:09,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:09,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:09,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:09,245 INFO L87 Difference]: Start difference. First operand 16516 states and 36051 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) [2022-11-03 03:36:16,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:16,936 INFO L93 Difference]: Finished difference Result 28771 states and 61696 transitions. [2022-11-03 03:36:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-03 03:36:16,937 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 [2022-11-03 03:36:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:16,990 INFO L225 Difference]: With dead ends: 28771 [2022-11-03 03:36:16,990 INFO L226 Difference]: Without dead ends: 28764 [2022-11-03 03:36:16,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=513, Invalid=1293, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 03:36:16,990 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 887 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 4414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:16,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1062 Invalid, 4414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:36:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28764 states. [2022-11-03 03:36:17,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28764 to 18324. [2022-11-03 03:36:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18324 states, 18281 states have (on average 2.2016301077621576) internal successors, (40248), 18323 states have internal predecessors, (40248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18324 states to 18324 states and 40248 transitions. [2022-11-03 03:36:17,351 INFO L78 Accepts]: Start accepts. Automaton has 18324 states and 40248 transitions. Word has length 32 [2022-11-03 03:36:17,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:17,351 INFO L495 AbstractCegarLoop]: Abstraction has 18324 states and 40248 transitions. [2022-11-03 03:36:17,352 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) [2022-11-03 03:36:17,352 INFO L276 IsEmpty]: Start isEmpty. Operand 18324 states and 40248 transitions. [2022-11-03 03:36:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:17,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:17,357 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] [2022-11-03 03:36:17,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-03 03:36:17,357 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)] === [2022-11-03 03:36:17,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash 876764484, now seen corresponding path program 48 times [2022-11-03 03:36:17,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:17,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167119785] [2022-11-03 03:36:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:17,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:18,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:18,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167119785] [2022-11-03 03:36:18,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167119785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:18,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:18,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:18,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985515490] [2022-11-03 03:36:18,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:18,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:18,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:18,889 INFO L87 Difference]: Start difference. First operand 18324 states and 40248 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) [2022-11-03 03:36:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:26,185 INFO L93 Difference]: Finished difference Result 26808 states and 58062 transitions. [2022-11-03 03:36:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:36:26,186 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 [2022-11-03 03:36:26,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:26,240 INFO L225 Difference]: With dead ends: 26808 [2022-11-03 03:36:26,240 INFO L226 Difference]: Without dead ends: 26808 [2022-11-03 03:36:26,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:36:26,241 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 836 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 5277 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:26,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1397 Invalid, 5351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5277 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 03:36:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26808 states. [2022-11-03 03:36:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26808 to 20142. [2022-11-03 03:36:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20142 states, 20099 states have (on average 2.2133439474600727) internal successors, (44486), 20141 states have internal predecessors, (44486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20142 states to 20142 states and 44486 transitions. [2022-11-03 03:36:26,605 INFO L78 Accepts]: Start accepts. Automaton has 20142 states and 44486 transitions. Word has length 32 [2022-11-03 03:36:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:26,605 INFO L495 AbstractCegarLoop]: Abstraction has 20142 states and 44486 transitions. [2022-11-03 03:36:26,605 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) [2022-11-03 03:36:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20142 states and 44486 transitions. [2022-11-03 03:36:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:26,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:26,611 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] [2022-11-03 03:36:26,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-03 03:36:26,611 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:36:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash 876541284, now seen corresponding path program 49 times [2022-11-03 03:36:26,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:26,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871990334] [2022-11-03 03:36:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:26,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:28,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:28,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871990334] [2022-11-03 03:36:28,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871990334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:28,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:28,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:28,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188452730] [2022-11-03 03:36:28,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:28,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:28,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:28,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:28,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:28,808 INFO L87 Difference]: Start difference. First operand 20142 states and 44486 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) [2022-11-03 03:36:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:34,919 INFO L93 Difference]: Finished difference Result 26787 states and 58018 transitions. [2022-11-03 03:36:34,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:36:34,920 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 [2022-11-03 03:36:34,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:34,973 INFO L225 Difference]: With dead ends: 26787 [2022-11-03 03:36:34,973 INFO L226 Difference]: Without dead ends: 26787 [2022-11-03 03:36:34,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-11-03 03:36:34,974 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 747 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:34,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1473 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:36:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26787 states. [2022-11-03 03:36:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26787 to 20143. [2022-11-03 03:36:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20143 states, 20100 states have (on average 2.2133333333333334) internal successors, (44488), 20142 states have internal predecessors, (44488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20143 states to 20143 states and 44488 transitions. [2022-11-03 03:36:35,506 INFO L78 Accepts]: Start accepts. Automaton has 20143 states and 44488 transitions. Word has length 32 [2022-11-03 03:36:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:35,507 INFO L495 AbstractCegarLoop]: Abstraction has 20143 states and 44488 transitions. [2022-11-03 03:36:35,507 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) [2022-11-03 03:36:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 20143 states and 44488 transitions. [2022-11-03 03:36:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:35,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:35,511 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] [2022-11-03 03:36:35,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-03 03:36:35,511 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:36:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -772822668, now seen corresponding path program 17 times [2022-11-03 03:36:35,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:35,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693947581] [2022-11-03 03:36:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:35,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:36,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:36,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693947581] [2022-11-03 03:36:36,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693947581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:36,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:36,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708743753] [2022-11-03 03:36:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:36,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:36,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:36,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:36,514 INFO L87 Difference]: Start difference. First operand 20143 states and 44488 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) [2022-11-03 03:36:44,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:44,915 INFO L93 Difference]: Finished difference Result 38470 states and 82967 transitions. [2022-11-03 03:36:44,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:36:44,916 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 [2022-11-03 03:36:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:44,992 INFO L225 Difference]: With dead ends: 38470 [2022-11-03 03:36:44,992 INFO L226 Difference]: Without dead ends: 38463 [2022-11-03 03:36:44,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=568, Invalid=1784, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:36:44,993 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1165 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 4549 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 4549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:44,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1534 Invalid, 5350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 4549 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-03 03:36:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38463 states. [2022-11-03 03:36:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38463 to 24682. [2022-11-03 03:36:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24682 states, 24639 states have (on average 2.216648402938431) internal successors, (54616), 24681 states have internal predecessors, (54616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24682 states to 24682 states and 54616 transitions. [2022-11-03 03:36:45,572 INFO L78 Accepts]: Start accepts. Automaton has 24682 states and 54616 transitions. Word has length 32 [2022-11-03 03:36:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:45,572 INFO L495 AbstractCegarLoop]: Abstraction has 24682 states and 54616 transitions. [2022-11-03 03:36:45,572 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) [2022-11-03 03:36:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 24682 states and 54616 transitions. [2022-11-03 03:36:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:45,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:45,578 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] [2022-11-03 03:36:45,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-03 03:36:45,578 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)] === [2022-11-03 03:36:45,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2083743518, now seen corresponding path program 50 times [2022-11-03 03:36:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:45,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110149856] [2022-11-03 03:36:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:45,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:46,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:46,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110149856] [2022-11-03 03:36:46,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110149856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:46,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:46,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259999370] [2022-11-03 03:36:46,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:46,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:46,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:46,904 INFO L87 Difference]: Start difference. First operand 24682 states and 54616 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) [2022-11-03 03:36:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:54,191 INFO L93 Difference]: Finished difference Result 31274 states and 67644 transitions. [2022-11-03 03:36:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:36:54,191 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 [2022-11-03 03:36:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:54,254 INFO L225 Difference]: With dead ends: 31274 [2022-11-03 03:36:54,254 INFO L226 Difference]: Without dead ends: 31274 [2022-11-03 03:36:54,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:36:54,255 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 932 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 5200 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 5261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 5200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:54,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 1807 Invalid, 5261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 5200 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 03:36:54,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2022-11-03 03:36:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 24919. [2022-11-03 03:36:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24919 states, 24876 states have (on average 2.2159511175430135) internal successors, (55124), 24918 states have internal predecessors, (55124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:36:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24919 states to 24919 states and 55124 transitions. [2022-11-03 03:36:54,796 INFO L78 Accepts]: Start accepts. Automaton has 24919 states and 55124 transitions. Word has length 32 [2022-11-03 03:36:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:54,796 INFO L495 AbstractCegarLoop]: Abstraction has 24919 states and 55124 transitions. [2022-11-03 03:36:54,796 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) [2022-11-03 03:36:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 24919 states and 55124 transitions. [2022-11-03 03:36:54,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:36:54,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:54,802 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] [2022-11-03 03:36:54,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-03 03:36:54,802 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)] === [2022-11-03 03:36:54,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:54,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2083966718, now seen corresponding path program 51 times [2022-11-03 03:36:54,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:54,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538683733] [2022-11-03 03:36:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:54,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:56,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:36:56,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:56,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538683733] [2022-11-03 03:36:56,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538683733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:56,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:56,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:36:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905573504] [2022-11-03 03:36:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:36:56,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:56,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:36:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:36:56,656 INFO L87 Difference]: Start difference. First operand 24919 states and 55124 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) [2022-11-03 03:37:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:03,941 INFO L93 Difference]: Finished difference Result 31248 states and 67592 transitions. [2022-11-03 03:37:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:37:03,942 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 [2022-11-03 03:37:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:04,009 INFO L225 Difference]: With dead ends: 31248 [2022-11-03 03:37:04,009 INFO L226 Difference]: Without dead ends: 31248 [2022-11-03 03:37:04,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:37:04,010 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 963 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 5003 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 5003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:04,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 1806 Invalid, 5078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 5003 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 03:37:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2022-11-03 03:37:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 24464. [2022-11-03 03:37:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24464 states, 24421 states have (on average 2.2165758977928833) internal successors, (54131), 24463 states have internal predecessors, (54131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24464 states to 24464 states and 54131 transitions. [2022-11-03 03:37:04,489 INFO L78 Accepts]: Start accepts. Automaton has 24464 states and 54131 transitions. Word has length 32 [2022-11-03 03:37:04,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:04,490 INFO L495 AbstractCegarLoop]: Abstraction has 24464 states and 54131 transitions. [2022-11-03 03:37:04,490 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) [2022-11-03 03:37:04,490 INFO L276 IsEmpty]: Start isEmpty. Operand 24464 states and 54131 transitions. [2022-11-03 03:37:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:04,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:04,496 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] [2022-11-03 03:37:04,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-03 03:37:04,496 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)] === [2022-11-03 03:37:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2089236224, now seen corresponding path program 52 times [2022-11-03 03:37:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:04,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860026497] [2022-11-03 03:37:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:05,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:05,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860026497] [2022-11-03 03:37:05,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860026497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:05,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:05,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:05,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884811126] [2022-11-03 03:37:05,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:05,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:05,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:05,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:05,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:05,953 INFO L87 Difference]: Start difference. First operand 24464 states and 54131 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) [2022-11-03 03:37:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:11,827 INFO L93 Difference]: Finished difference Result 30907 states and 66961 transitions. [2022-11-03 03:37:11,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:37:11,828 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 [2022-11-03 03:37:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:11,891 INFO L225 Difference]: With dead ends: 30907 [2022-11-03 03:37:11,891 INFO L226 Difference]: Without dead ends: 30907 [2022-11-03 03:37:11,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:37:11,892 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 706 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 4415 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 4488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 4415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:11,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1669 Invalid, 4488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 4415 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:37:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30907 states. [2022-11-03 03:37:12,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30907 to 24472. [2022-11-03 03:37:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24429 states have (on average 2.2165049735969546) internal successors, (54147), 24471 states have internal predecessors, (54147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 54147 transitions. [2022-11-03 03:37:12,474 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 54147 transitions. Word has length 32 [2022-11-03 03:37:12,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:12,474 INFO L495 AbstractCegarLoop]: Abstraction has 24472 states and 54147 transitions. [2022-11-03 03:37:12,474 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) [2022-11-03 03:37:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 54147 transitions. [2022-11-03 03:37:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:12,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:12,480 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] [2022-11-03 03:37:12,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-03 03:37:12,480 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:37:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:12,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2089459424, now seen corresponding path program 53 times [2022-11-03 03:37:12,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:12,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445754589] [2022-11-03 03:37:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:13,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:13,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445754589] [2022-11-03 03:37:13,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445754589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:13,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:13,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:13,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923406912] [2022-11-03 03:37:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:13,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:13,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:13,932 INFO L87 Difference]: Start difference. First operand 24472 states and 54147 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) [2022-11-03 03:37:20,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:20,439 INFO L93 Difference]: Finished difference Result 30878 states and 66903 transitions. [2022-11-03 03:37:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:37:20,439 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 [2022-11-03 03:37:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:20,502 INFO L225 Difference]: With dead ends: 30878 [2022-11-03 03:37:20,502 INFO L226 Difference]: Without dead ends: 30878 [2022-11-03 03:37:20,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:37:20,503 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 695 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 4411 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 4482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:20,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1669 Invalid, 4482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4411 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 03:37:20,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30878 states. [2022-11-03 03:37:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30878 to 24460. [2022-11-03 03:37:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24417 states have (on average 2.2166113773190808) internal successors, (54123), 24459 states have internal predecessors, (54123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 54123 transitions. [2022-11-03 03:37:20,995 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 54123 transitions. Word has length 32 [2022-11-03 03:37:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:20,995 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 54123 transitions. [2022-11-03 03:37:20,995 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) [2022-11-03 03:37:20,995 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 54123 transitions. [2022-11-03 03:37:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:21,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:21,002 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] [2022-11-03 03:37:21,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-03 03:37:21,002 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)] === [2022-11-03 03:37:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1976629766, now seen corresponding path program 54 times [2022-11-03 03:37:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:21,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954716929] [2022-11-03 03:37:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:22,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:22,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954716929] [2022-11-03 03:37:22,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954716929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:22,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:22,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:22,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142567328] [2022-11-03 03:37:22,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:22,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:22,445 INFO L87 Difference]: Start difference. First operand 24460 states and 54123 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) [2022-11-03 03:37:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:30,361 INFO L93 Difference]: Finished difference Result 30771 states and 66689 transitions. [2022-11-03 03:37:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:37:30,361 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 [2022-11-03 03:37:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:30,424 INFO L225 Difference]: With dead ends: 30771 [2022-11-03 03:37:30,424 INFO L226 Difference]: Without dead ends: 30771 [2022-11-03 03:37:30,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 03:37:30,424 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 939 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 5614 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 5688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:30,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1567 Invalid, 5688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5614 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 03:37:30,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30771 states. [2022-11-03 03:37:30,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30771 to 24460. [2022-11-03 03:37:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24417 states have (on average 2.2166113773190808) internal successors, (54123), 24459 states have internal predecessors, (54123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 54123 transitions. [2022-11-03 03:37:30,898 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 54123 transitions. Word has length 32 [2022-11-03 03:37:30,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:30,898 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 54123 transitions. [2022-11-03 03:37:30,899 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) [2022-11-03 03:37:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 54123 transitions. [2022-11-03 03:37:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:30,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:30,904 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] [2022-11-03 03:37:30,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-03 03:37:30,904 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:37:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1976852966, now seen corresponding path program 55 times [2022-11-03 03:37:30,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:30,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962615543] [2022-11-03 03:37:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:30,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:32,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:32,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962615543] [2022-11-03 03:37:32,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962615543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:32,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:32,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374796677] [2022-11-03 03:37:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:32,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:32,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:32,720 INFO L87 Difference]: Start difference. First operand 24460 states and 54123 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) [2022-11-03 03:37:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:38,542 INFO L93 Difference]: Finished difference Result 30812 states and 66771 transitions. [2022-11-03 03:37:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:37:38,543 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 [2022-11-03 03:37:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:38,607 INFO L225 Difference]: With dead ends: 30812 [2022-11-03 03:37:38,607 INFO L226 Difference]: Without dead ends: 30812 [2022-11-03 03:37:38,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2022-11-03 03:37:38,608 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 852 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 3895 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 3979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:38,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1541 Invalid, 3979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3895 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 03:37:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30812 states. [2022-11-03 03:37:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30812 to 24456. [2022-11-03 03:37:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24456 states, 24413 states have (on average 2.2166468684717158) internal successors, (54115), 24455 states have internal predecessors, (54115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24456 states to 24456 states and 54115 transitions. [2022-11-03 03:37:39,240 INFO L78 Accepts]: Start accepts. Automaton has 24456 states and 54115 transitions. Word has length 32 [2022-11-03 03:37:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:39,240 INFO L495 AbstractCegarLoop]: Abstraction has 24456 states and 54115 transitions. [2022-11-03 03:37:39,240 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) [2022-11-03 03:37:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 24456 states and 54115 transitions. [2022-11-03 03:37:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:39,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:39,246 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] [2022-11-03 03:37:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-03 03:37:39,246 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)] === [2022-11-03 03:37:39,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:39,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1991902880, now seen corresponding path program 56 times [2022-11-03 03:37:39,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:39,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072158237] [2022-11-03 03:37:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:39,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:40,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:40,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:40,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072158237] [2022-11-03 03:37:40,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072158237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:40,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:40,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378310140] [2022-11-03 03:37:40,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:40,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:40,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:40,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:40,893 INFO L87 Difference]: Start difference. First operand 24456 states and 54115 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) [2022-11-03 03:37:48,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:48,107 INFO L93 Difference]: Finished difference Result 30717 states and 66581 transitions. [2022-11-03 03:37:48,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:37:48,108 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 [2022-11-03 03:37:48,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:48,169 INFO L225 Difference]: With dead ends: 30717 [2022-11-03 03:37:48,169 INFO L226 Difference]: Without dead ends: 30717 [2022-11-03 03:37:48,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:37:48,170 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 934 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 5152 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 5225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 5152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:48,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1560 Invalid, 5225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 5152 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 03:37:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30717 states. [2022-11-03 03:37:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30717 to 21785. [2022-11-03 03:37:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21785 states, 21742 states have (on average 2.2137337871400975) internal successors, (48131), 21784 states have internal predecessors, (48131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21785 states to 21785 states and 48131 transitions. [2022-11-03 03:37:48,591 INFO L78 Accepts]: Start accepts. Automaton has 21785 states and 48131 transitions. Word has length 32 [2022-11-03 03:37:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:48,591 INFO L495 AbstractCegarLoop]: Abstraction has 21785 states and 48131 transitions. [2022-11-03 03:37:48,592 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) [2022-11-03 03:37:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand 21785 states and 48131 transitions. [2022-11-03 03:37:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:48,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:48,597 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] [2022-11-03 03:37:48,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-03 03:37:48,597 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)] === [2022-11-03 03:37:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:48,598 INFO L85 PathProgramCache]: Analyzing trace with hash -692844426, now seen corresponding path program 18 times [2022-11-03 03:37:48,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:48,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863841942] [2022-11-03 03:37:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:48,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:49,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:49,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863841942] [2022-11-03 03:37:49,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863841942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:49,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:49,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980551771] [2022-11-03 03:37:49,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:49,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:49,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:49,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:49,642 INFO L87 Difference]: Start difference. First operand 21785 states and 48131 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) [2022-11-03 03:37:57,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:57,848 INFO L93 Difference]: Finished difference Result 34015 states and 73494 transitions. [2022-11-03 03:37:57,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-03 03:37:57,849 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 [2022-11-03 03:37:57,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:57,923 INFO L225 Difference]: With dead ends: 34015 [2022-11-03 03:37:57,923 INFO L226 Difference]: Without dead ends: 34008 [2022-11-03 03:37:57,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=528, Invalid=1364, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 03:37:57,924 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 768 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4361 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 4890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 4361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:57,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1295 Invalid, 4890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 4361 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:37:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34008 states. [2022-11-03 03:37:58,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34008 to 19319. [2022-11-03 03:37:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19319 states, 19276 states have (on average 2.202427889603652) internal successors, (42454), 19318 states have internal predecessors, (42454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:37:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19319 states to 19319 states and 42454 transitions. [2022-11-03 03:37:58,349 INFO L78 Accepts]: Start accepts. Automaton has 19319 states and 42454 transitions. Word has length 32 [2022-11-03 03:37:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:58,350 INFO L495 AbstractCegarLoop]: Abstraction has 19319 states and 42454 transitions. [2022-11-03 03:37:58,350 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) [2022-11-03 03:37:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 19319 states and 42454 transitions. [2022-11-03 03:37:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:58,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:58,355 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] [2022-11-03 03:37:58,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-03 03:37:58,355 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:37:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1421882920, now seen corresponding path program 19 times [2022-11-03 03:37:58,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:58,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148390968] [2022-11-03 03:37:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:58,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:37:59,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148390968] [2022-11-03 03:37:59,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148390968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:59,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:59,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:37:59,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081633934] [2022-11-03 03:37:59,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:59,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:37:59,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:37:59,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:37:59,918 INFO L87 Difference]: Start difference. First operand 19319 states and 42454 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) [2022-11-03 03:38:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:06,438 INFO L93 Difference]: Finished difference Result 32141 states and 69881 transitions. [2022-11-03 03:38:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-03 03:38:06,439 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 [2022-11-03 03:38:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:06,513 INFO L225 Difference]: With dead ends: 32141 [2022-11-03 03:38:06,513 INFO L226 Difference]: Without dead ends: 32137 [2022-11-03 03:38:06,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=378, Invalid=882, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 03:38:06,514 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 593 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 3815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:06,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 775 Invalid, 4382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 03:38:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32137 states. [2022-11-03 03:38:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32137 to 22593. [2022-11-03 03:38:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22593 states, 22550 states have (on average 2.2211529933481153) internal successors, (50087), 22592 states have internal predecessors, (50087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:06,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 50087 transitions. [2022-11-03 03:38:06,976 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 50087 transitions. Word has length 32 [2022-11-03 03:38:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:06,976 INFO L495 AbstractCegarLoop]: Abstraction has 22593 states and 50087 transitions. [2022-11-03 03:38:06,977 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) [2022-11-03 03:38:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 50087 transitions. [2022-11-03 03:38:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:06,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:06,983 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] [2022-11-03 03:38:06,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-03 03:38:06,983 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)] === [2022-11-03 03:38:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2054071016, now seen corresponding path program 57 times [2022-11-03 03:38:06,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:06,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793877990] [2022-11-03 03:38:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:08,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:08,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793877990] [2022-11-03 03:38:08,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793877990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:08,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:08,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380535835] [2022-11-03 03:38:08,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:08,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:08,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:08,474 INFO L87 Difference]: Start difference. First operand 22593 states and 50087 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) [2022-11-03 03:38:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:13,881 INFO L93 Difference]: Finished difference Result 29721 states and 64852 transitions. [2022-11-03 03:38:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:38:13,881 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 [2022-11-03 03:38:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:13,945 INFO L225 Difference]: With dead ends: 29721 [2022-11-03 03:38:13,945 INFO L226 Difference]: Without dead ends: 29721 [2022-11-03 03:38:13,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:38:13,946 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 877 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 3481 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 3624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:13,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1035 Invalid, 3624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3481 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-03 03:38:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29721 states. [2022-11-03 03:38:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29721 to 19583. [2022-11-03 03:38:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19583 states, 19540 states have (on average 2.2043500511770726) internal successors, (43073), 19582 states have internal predecessors, (43073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19583 states to 19583 states and 43073 transitions. [2022-11-03 03:38:14,597 INFO L78 Accepts]: Start accepts. Automaton has 19583 states and 43073 transitions. Word has length 32 [2022-11-03 03:38:14,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:14,598 INFO L495 AbstractCegarLoop]: Abstraction has 19583 states and 43073 transitions. [2022-11-03 03:38:14,598 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) [2022-11-03 03:38:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 19583 states and 43073 transitions. [2022-11-03 03:38:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:14,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:14,603 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] [2022-11-03 03:38:14,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-03 03:38:14,603 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:38:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:14,605 INFO L85 PathProgramCache]: Analyzing trace with hash 931300696, now seen corresponding path program 20 times [2022-11-03 03:38:14,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:14,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036465798] [2022-11-03 03:38:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:16,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:16,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036465798] [2022-11-03 03:38:16,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036465798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:16,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:16,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070281288] [2022-11-03 03:38:16,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:16,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:16,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:16,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:16,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:16,013 INFO L87 Difference]: Start difference. First operand 19583 states and 43073 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) [2022-11-03 03:38:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:23,462 INFO L93 Difference]: Finished difference Result 27555 states and 59573 transitions. [2022-11-03 03:38:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 03:38:23,463 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 [2022-11-03 03:38:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:23,518 INFO L225 Difference]: With dead ends: 27555 [2022-11-03 03:38:23,518 INFO L226 Difference]: Without dead ends: 27551 [2022-11-03 03:38:23,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=469, Invalid=1091, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 03:38:23,519 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 608 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 4553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:23,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 659 Invalid, 4553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 3935 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 03:38:23,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27551 states. [2022-11-03 03:38:23,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27551 to 20265. [2022-11-03 03:38:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20265 states, 20222 states have (on average 2.2088319651864308) internal successors, (44667), 20264 states have internal predecessors, (44667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20265 states to 20265 states and 44667 transitions. [2022-11-03 03:38:23,934 INFO L78 Accepts]: Start accepts. Automaton has 20265 states and 44667 transitions. Word has length 32 [2022-11-03 03:38:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:23,934 INFO L495 AbstractCegarLoop]: Abstraction has 20265 states and 44667 transitions. [2022-11-03 03:38:23,935 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) [2022-11-03 03:38:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 20265 states and 44667 transitions. [2022-11-03 03:38:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:23,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:23,940 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] [2022-11-03 03:38:23,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-03 03:38:23,941 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)] === [2022-11-03 03:38:23,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1750314056, now seen corresponding path program 58 times [2022-11-03 03:38:23,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:23,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088413167] [2022-11-03 03:38:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:23,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:25,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:25,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088413167] [2022-11-03 03:38:25,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088413167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:25,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:25,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:25,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779115113] [2022-11-03 03:38:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:25,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:25,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:25,217 INFO L87 Difference]: Start difference. First operand 20265 states and 44667 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) [2022-11-03 03:38:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:31,636 INFO L93 Difference]: Finished difference Result 27317 states and 59113 transitions. [2022-11-03 03:38:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:38:31,637 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 [2022-11-03 03:38:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:31,691 INFO L225 Difference]: With dead ends: 27317 [2022-11-03 03:38:31,691 INFO L226 Difference]: Without dead ends: 27317 [2022-11-03 03:38:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:38:31,691 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 829 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 4543 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 4664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 4543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:31,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 975 Invalid, 4664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 4543 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-03 03:38:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27317 states. [2022-11-03 03:38:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27317 to 20257. [2022-11-03 03:38:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20257 states, 20214 states have (on average 2.208815672306322) internal successors, (44649), 20256 states have internal predecessors, (44649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20257 states to 20257 states and 44649 transitions. [2022-11-03 03:38:32,100 INFO L78 Accepts]: Start accepts. Automaton has 20257 states and 44649 transitions. Word has length 32 [2022-11-03 03:38:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:32,100 INFO L495 AbstractCegarLoop]: Abstraction has 20257 states and 44649 transitions. [2022-11-03 03:38:32,101 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) [2022-11-03 03:38:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 20257 states and 44649 transitions. [2022-11-03 03:38:32,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:32,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:32,106 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] [2022-11-03 03:38:32,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-03 03:38:32,106 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:38:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2034601036, now seen corresponding path program 21 times [2022-11-03 03:38:32,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:32,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117944203] [2022-11-03 03:38:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:32,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:33,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:33,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117944203] [2022-11-03 03:38:33,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117944203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:33,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:33,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649994974] [2022-11-03 03:38:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:33,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:33,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:33,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:33,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:33,310 INFO L87 Difference]: Start difference. First operand 20257 states and 44649 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) [2022-11-03 03:38:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:39,155 INFO L93 Difference]: Finished difference Result 33081 states and 71557 transitions. [2022-11-03 03:38:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:38:39,155 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 [2022-11-03 03:38:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:39,222 INFO L225 Difference]: With dead ends: 33081 [2022-11-03 03:38:39,223 INFO L226 Difference]: Without dead ends: 33077 [2022-11-03 03:38:39,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=391, Invalid=941, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 03:38:39,224 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 869 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:39,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 746 Invalid, 3252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 03:38:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33077 states. [2022-11-03 03:38:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33077 to 21137. [2022-11-03 03:38:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21137 states, 21094 states have (on average 2.2129989570493978) internal successors, (46681), 21136 states have internal predecessors, (46681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21137 states to 21137 states and 46681 transitions. [2022-11-03 03:38:39,650 INFO L78 Accepts]: Start accepts. Automaton has 21137 states and 46681 transitions. Word has length 32 [2022-11-03 03:38:39,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:39,651 INFO L495 AbstractCegarLoop]: Abstraction has 21137 states and 46681 transitions. [2022-11-03 03:38:39,651 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) [2022-11-03 03:38:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 21137 states and 46681 transitions. [2022-11-03 03:38:39,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:39,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:39,656 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] [2022-11-03 03:38:39,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-03 03:38:39,656 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)] === [2022-11-03 03:38:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:39,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1441352900, now seen corresponding path program 59 times [2022-11-03 03:38:39,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:39,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402017146] [2022-11-03 03:38:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:39,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:40,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402017146] [2022-11-03 03:38:40,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402017146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:40,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:40,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:40,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674578781] [2022-11-03 03:38:40,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:40,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:40,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:40,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:40,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:40,900 INFO L87 Difference]: Start difference. First operand 21137 states and 46681 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) [2022-11-03 03:38:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:48,191 INFO L93 Difference]: Finished difference Result 29212 states and 63476 transitions. [2022-11-03 03:38:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 03:38:48,192 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 [2022-11-03 03:38:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:48,255 INFO L225 Difference]: With dead ends: 29212 [2022-11-03 03:38:48,255 INFO L226 Difference]: Without dead ends: 29212 [2022-11-03 03:38:48,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:38:48,256 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 759 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 5301 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 5378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 5301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:48,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1164 Invalid, 5378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 5301 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-03 03:38:48,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29212 states. [2022-11-03 03:38:48,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29212 to 21131. [2022-11-03 03:38:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21131 states, 21088 states have (on average 2.213059559939302) internal successors, (46669), 21130 states have internal predecessors, (46669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21131 states to 21131 states and 46669 transitions. [2022-11-03 03:38:48,668 INFO L78 Accepts]: Start accepts. Automaton has 21131 states and 46669 transitions. Word has length 32 [2022-11-03 03:38:48,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:48,669 INFO L495 AbstractCegarLoop]: Abstraction has 21131 states and 46669 transitions. [2022-11-03 03:38:48,669 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) [2022-11-03 03:38:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 21131 states and 46669 transitions. [2022-11-03 03:38:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:48,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:48,675 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] [2022-11-03 03:38:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-03 03:38:48,675 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:38:48,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:48,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1441576100, now seen corresponding path program 60 times [2022-11-03 03:38:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:48,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497260710] [2022-11-03 03:38:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:50,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:50,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497260710] [2022-11-03 03:38:50,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497260710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:50,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:50,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 03:38:50,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22390784] [2022-11-03 03:38:50,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:50,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 03:38:50,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:50,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 03:38:50,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:38:50,084 INFO L87 Difference]: Start difference. First operand 21131 states and 46669 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:38:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:55,049 INFO L93 Difference]: Finished difference Result 27261 states and 59589 transitions. [2022-11-03 03:38:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:38:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 [2022-11-03 03:38:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:55,111 INFO L225 Difference]: With dead ends: 27261 [2022-11-03 03:38:55,112 INFO L226 Difference]: Without dead ends: 27261 [2022-11-03 03:38:55,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:38:55,112 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 641 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 4001 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:55,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 858 Invalid, 4021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4001 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 03:38:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27261 states. [2022-11-03 03:38:55,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27261 to 21481. [2022-11-03 03:38:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21481 states, 21438 states have (on average 2.213126224461237) internal successors, (47445), 21480 states have internal predecessors, (47445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:38:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21481 states to 21481 states and 47445 transitions. [2022-11-03 03:38:55,528 INFO L78 Accepts]: Start accepts. Automaton has 21481 states and 47445 transitions. Word has length 32 [2022-11-03 03:38:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:55,529 INFO L495 AbstractCegarLoop]: Abstraction has 21481 states and 47445 transitions. [2022-11-03 03:38:55,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-03 03:38:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21481 states and 47445 transitions. [2022-11-03 03:38:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:38:55,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:55,537 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] [2022-11-03 03:38:55,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-03 03:38:55,537 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:38:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -38386800, now seen corresponding path program 22 times [2022-11-03 03:38:55,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:55,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238853450] [2022-11-03 03:38:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:55,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:38:56,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238853450] [2022-11-03 03:38:56,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238853450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:56,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:56,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:38:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7768095] [2022-11-03 03:38:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:56,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:38:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:38:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:38:56,944 INFO L87 Difference]: Start difference. First operand 21481 states and 47445 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) [2022-11-03 03:39:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:04,420 INFO L93 Difference]: Finished difference Result 36356 states and 78968 transitions. [2022-11-03 03:39:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-03 03:39:04,421 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 [2022-11-03 03:39:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:04,508 INFO L225 Difference]: With dead ends: 36356 [2022-11-03 03:39:04,509 INFO L226 Difference]: Without dead ends: 36349 [2022-11-03 03:39:04,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=514, Invalid=1292, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 03:39:04,509 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 876 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:39:04,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 951 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 03:39:04,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36349 states. [2022-11-03 03:39:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36349 to 23445. [2022-11-03 03:39:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23445 states, 23402 states have (on average 2.2220323049312025) internal successors, (52000), 23444 states have internal predecessors, (52000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:39:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23445 states to 23445 states and 52000 transitions. [2022-11-03 03:39:05,018 INFO L78 Accepts]: Start accepts. Automaton has 23445 states and 52000 transitions. Word has length 32 [2022-11-03 03:39:05,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:05,018 INFO L495 AbstractCegarLoop]: Abstraction has 23445 states and 52000 transitions. [2022-11-03 03:39:05,018 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) [2022-11-03 03:39:05,019 INFO L276 IsEmpty]: Start isEmpty. Operand 23445 states and 52000 transitions. [2022-11-03 03:39:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:39:05,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:05,024 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] [2022-11-03 03:39:05,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-03 03:39:05,025 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:39:05,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:05,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1746197696, now seen corresponding path program 23 times [2022-11-03 03:39:05,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:39:05,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54154325] [2022-11-03 03:39:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:05,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:39:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:39:06,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:39:06,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54154325] [2022-11-03 03:39:06,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54154325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:06,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:06,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:39:06,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158750442] [2022-11-03 03:39:06,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:06,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:39:06,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:39:06,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:39:06,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:39:06,116 INFO L87 Difference]: Start difference. First operand 23445 states and 52000 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) [2022-11-03 03:39:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:15,503 INFO L93 Difference]: Finished difference Result 41924 states and 90727 transitions. [2022-11-03 03:39:15,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:39:15,503 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 [2022-11-03 03:39:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:15,762 INFO L225 Difference]: With dead ends: 41924 [2022-11-03 03:39:15,762 INFO L226 Difference]: Without dead ends: 41917 [2022-11-03 03:39:15,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=569, Invalid=1783, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:39:15,763 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 967 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 5640 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 6153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 5640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:39:15,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 1341 Invalid, 6153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 5640 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-03 03:39:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41917 states. [2022-11-03 03:39:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41917 to 27405. [2022-11-03 03:39:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27405 states, 27362 states have (on average 2.223156202032015) internal successors, (60830), 27404 states have internal predecessors, (60830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:39:16,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27405 states to 27405 states and 60830 transitions. [2022-11-03 03:39:16,413 INFO L78 Accepts]: Start accepts. Automaton has 27405 states and 60830 transitions. Word has length 32 [2022-11-03 03:39:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:16,413 INFO L495 AbstractCegarLoop]: Abstraction has 27405 states and 60830 transitions. [2022-11-03 03:39:16,413 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) [2022-11-03 03:39:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 27405 states and 60830 transitions. [2022-11-03 03:39:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:39:16,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:16,421 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] [2022-11-03 03:39:16,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-03 03:39:16,421 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-03 03:39:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:16,422 INFO L85 PathProgramCache]: Analyzing trace with hash 435276846, now seen corresponding path program 61 times [2022-11-03 03:39:16,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:39:16,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306003016] [2022-11-03 03:39:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:39:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:39:17,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:39:17,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306003016] [2022-11-03 03:39:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306003016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:17,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:39:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221330428] [2022-11-03 03:39:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:17,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 03:39:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:39:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 03:39:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:39:17,911 INFO L87 Difference]: Start difference. First operand 27405 states and 60830 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)