./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:49:58,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:49:58,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:49:58,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:49:58,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:49:58,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:49:58,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:49:58,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:49:58,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:49:58,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:49:58,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:49:58,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:49:58,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:49:58,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:49:58,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:49:58,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:49:58,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:49:58,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:49:58,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:49:58,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:49:58,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:49:58,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:49:58,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:49:58,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:49:58,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:49:58,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:49:58,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:49:58,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:49:58,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:49:58,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:49:58,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:49:58,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:49:58,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:49:58,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:49:58,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:49:58,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:49:58,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:49:58,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:49:58,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:49:58,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:49:58,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:49:58,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 06:49:58,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:49:58,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:49:58,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:49:58,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:49:58,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:49:58,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:49:58,678 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:49:58,678 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:49:58,678 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:49:58,678 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:49:58,679 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:49:58,679 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:49:58,679 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:49:58,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:49:58,679 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:49:58,679 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:49:58,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:49:58,680 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:49:58,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:49:58,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:49:58,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:49:58,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:49:58,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:49:58,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:49:58,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:58,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:49:58,684 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:49:58,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:49:58,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:49:58,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:49:58,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:49:58,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:49:58,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:49:58,685 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_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2022-12-14 06:49:58,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:49:58,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:49:58,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:49:58,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:49:58,896 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:49:58,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/queue.i [2022-12-14 06:50:01,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:50:01,607 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:50:01,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i [2022-12-14 06:50:01,617 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/data/c3e494a98/a1f27bca27894f219708b1f8e2c5a052/FLAGcbb8eb58b [2022-12-14 06:50:01,986 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/data/c3e494a98/a1f27bca27894f219708b1f8e2c5a052 [2022-12-14 06:50:01,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:50:01,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:50:01,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:01,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:50:01,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:50:01,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:01" (1/1) ... [2022-12-14 06:50:02,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc09824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:01, skipping insertion in model container [2022-12-14 06:50:02,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:01" (1/1) ... [2022-12-14 06:50:02,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:50:02,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:50:02,368 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-12-14 06:50:02,371 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-12-14 06:50:02,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-12-14 06:50:02,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:02,388 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:50:02,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-12-14 06:50:02,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-12-14 06:50:02,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-12-14 06:50:02,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:02,463 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:50:02,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02 WrapperNode [2022-12-14 06:50:02,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:02,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:02,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:50:02,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:50:02,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,516 INFO L138 Inliner]: procedures = 274, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 490 [2022-12-14 06:50:02,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:02,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:50:02,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:50:02,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:50:02,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:50:02,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:50:02,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:50:02,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:50:02,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (1/1) ... [2022-12-14 06:50:02,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:50:02,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:02,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:50:02,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29080f6-4b14-45b2-be72-30c5fbe06ffa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:50:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-14 06:50:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-14 06:50:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-14 06:50:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-14 06:50:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:50:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:50:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:50:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:50:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 06:50:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:50:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:50:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:50:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:50:02,631 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 06:50:02,743 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:50:02,745 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:50:03,331 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:50:03,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:50:03,341 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 06:50:03,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:50:03 BoogieIcfgContainer [2022-12-14 06:50:03,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:50:03,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:50:03,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:50:03,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:50:03,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:50:01" (1/3) ... [2022-12-14 06:50:03,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d2f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:50:03, skipping insertion in model container [2022-12-14 06:50:03,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:02" (2/3) ... [2022-12-14 06:50:03,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d2f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:50:03, skipping insertion in model container [2022-12-14 06:50:03,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:50:03" (3/3) ... [2022-12-14 06:50:03,352 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2022-12-14 06:50:03,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 06:50:03,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:50:03,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-12-14 06:50:03,366 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:50:03,513 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 06:50:03,548 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:50:03,562 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 553 places, 561 transitions, 1138 flow [2022-12-14 06:50:03,565 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 553 places, 561 transitions, 1138 flow [2022-12-14 06:50:03,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 553 places, 561 transitions, 1138 flow [2022-12-14 06:50:03,758 INFO L130 PetriNetUnfolder]: 15/559 cut-off events. [2022-12-14 06:50:03,758 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 06:50:03,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 559 events. 15/559 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 781 event pairs, 0 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-12-14 06:50:03,802 INFO L119 LiptonReduction]: Number of co-enabled transitions 83848 [2022-12-14 06:50:51,461 WARN L233 SmtUtils]: Spent 22.86s on a formula simplification. DAG size of input: 137 DAG size of output: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:50:59,038 WARN L233 SmtUtils]: Spent 7.58s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:51:28,683 WARN L233 SmtUtils]: Spent 29.64s on a formula simplification. DAG size of input: 141 DAG size of output: 137 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:51:40,187 WARN L233 SmtUtils]: Spent 11.50s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:52:16,363 WARN L233 SmtUtils]: Spent 35.14s on a formula simplification. DAG size of input: 246 DAG size of output: 235 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:52:23,005 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:52:33,373 WARN L233 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 250 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:52:54,794 WARN L233 SmtUtils]: Spent 21.42s on a formula simplification that was a NOOP. DAG size: 233 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:52:55,119 INFO L134 LiptonReduction]: Checked pairs total: 1474385 [2022-12-14 06:52:55,120 INFO L136 LiptonReduction]: Total number of compositions: 375 [2022-12-14 06:52:55,125 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 274 places, 277 transitions, 570 flow [2022-12-14 06:52:56,748 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 102084 states, 101441 states have (on average 2.947752880985006) internal successors, (299023), 102083 states have internal predecessors, (299023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:56,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:52:56,771 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;@563f14fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:52:56,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-12-14 06:52:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 102084 states, 101441 states have (on average 2.947752880985006) internal successors, (299023), 102083 states have internal predecessors, (299023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 06:52:56,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:56,906 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 06:52:56,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:52:56,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1983, now seen corresponding path program 1 times [2022-12-14 06:52:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:56,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333668452] [2022-12-14 06:52:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:56,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:56,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:56,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333668452] [2022-12-14 06:52:56,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333668452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:56,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:56,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 06:52:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995458799] [2022-12-14 06:52:57,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:57,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:52:57,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:52:57,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:52:57,135 INFO L87 Difference]: Start difference. First operand has 102084 states, 101441 states have (on average 2.947752880985006) internal successors, (299023), 102083 states have internal predecessors, (299023), 0 states have call successors, (0), 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) [2022-12-14 06:52:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:58,065 INFO L93 Difference]: Finished difference Result 102077 states and 297102 transitions. [2022-12-14 06:52:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:52:58,068 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 [2022-12-14 06:52:58,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:58,578 INFO L225 Difference]: With dead ends: 102077 [2022-12-14 06:52:58,578 INFO L226 Difference]: Without dead ends: 102077 [2022-12-14 06:52:58,579 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 [2022-12-14 06:52:58,581 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:58,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:52:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102077 states. [2022-12-14 06:53:00,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102077 to 102077. [2022-12-14 06:53:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102077 states, 101441 states have (on average 2.928815764828817) internal successors, (297102), 102076 states have internal predecessors, (297102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102077 states to 102077 states and 297102 transitions. [2022-12-14 06:53:01,293 INFO L78 Accepts]: Start accepts. Automaton has 102077 states and 297102 transitions. Word has length 1 [2022-12-14 06:53:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:01,293 INFO L495 AbstractCegarLoop]: Abstraction has 102077 states and 297102 transitions. [2022-12-14 06:53:01,293 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) [2022-12-14 06:53:01,293 INFO L276 IsEmpty]: Start isEmpty. Operand 102077 states and 297102 transitions. [2022-12-14 06:53:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:53:01,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:01,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:01,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:53:01,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2070268143, now seen corresponding path program 1 times [2022-12-14 06:53:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:01,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706990322] [2022-12-14 06:53:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:01,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706990322] [2022-12-14 06:53:01,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706990322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:01,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:01,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:53:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982572235] [2022-12-14 06:53:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:01,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:53:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:53:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:53:01,414 INFO L87 Difference]: Start difference. First operand 102077 states and 297102 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:02,355 INFO L93 Difference]: Finished difference Result 148780 states and 433309 transitions. [2022-12-14 06:53:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:53:02,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:53:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:02,873 INFO L225 Difference]: With dead ends: 148780 [2022-12-14 06:53:02,873 INFO L226 Difference]: Without dead ends: 148780 [2022-12-14 06:53:02,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:53:02,874 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 246 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:02,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 469 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:53:03,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148780 states. [2022-12-14 06:53:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148780 to 102085. [2022-12-14 06:53:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102085 states, 101471 states have (on average 2.934493599156409) internal successors, (297766), 102084 states have internal predecessors, (297766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102085 states to 102085 states and 297766 transitions. [2022-12-14 06:53:05,405 INFO L78 Accepts]: Start accepts. Automaton has 102085 states and 297766 transitions. Word has length 8 [2022-12-14 06:53:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:05,406 INFO L495 AbstractCegarLoop]: Abstraction has 102085 states and 297766 transitions. [2022-12-14 06:53:05,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 102085 states and 297766 transitions. [2022-12-14 06:53:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 06:53:05,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:05,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:05,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:53:05,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:05,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:05,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1157721528, now seen corresponding path program 1 times [2022-12-14 06:53:05,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:05,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014701452] [2022-12-14 06:53:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:05,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:05,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014701452] [2022-12-14 06:53:05,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014701452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:05,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:05,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506448901] [2022-12-14 06:53:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:05,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:53:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:53:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:05,725 INFO L87 Difference]: Start difference. First operand 102085 states and 297766 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-12-14 06:53:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:07,776 INFO L93 Difference]: Finished difference Result 130681 states and 381950 transitions. [2022-12-14 06:53:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:53:07,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 [2022-12-14 06:53:07,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:08,192 INFO L225 Difference]: With dead ends: 130681 [2022-12-14 06:53:08,192 INFO L226 Difference]: Without dead ends: 130681 [2022-12-14 06:53:08,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:08,193 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 220 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:08,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 287 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:53:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130681 states. [2022-12-14 06:53:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130681 to 116953. [2022-12-14 06:53:10,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116953 states, 116345 states have (on average 2.940650651080837) internal successors, (342130), 116952 states have internal predecessors, (342130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116953 states to 116953 states and 342130 transitions. [2022-12-14 06:53:10,947 INFO L78 Accepts]: Start accepts. Automaton has 116953 states and 342130 transitions. Word has length 9 [2022-12-14 06:53:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:10,947 INFO L495 AbstractCegarLoop]: Abstraction has 116953 states and 342130 transitions. [2022-12-14 06:53:10,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-12-14 06:53:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 116953 states and 342130 transitions. [2022-12-14 06:53:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:53:10,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:10,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:10,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:53:10,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:10,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1108369208, now seen corresponding path program 1 times [2022-12-14 06:53:10,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:10,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055641557] [2022-12-14 06:53:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:10,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:11,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:11,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055641557] [2022-12-14 06:53:11,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055641557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:11,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:11,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182333931] [2022-12-14 06:53:11,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:11,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:53:11,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:11,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:53:11,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:11,143 INFO L87 Difference]: Start difference. First operand 116953 states and 342130 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) [2022-12-14 06:53:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:14,350 INFO L93 Difference]: Finished difference Result 190046 states and 550480 transitions. [2022-12-14 06:53:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:53:14,351 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 [2022-12-14 06:53:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:14,959 INFO L225 Difference]: With dead ends: 190046 [2022-12-14 06:53:14,959 INFO L226 Difference]: Without dead ends: 190046 [2022-12-14 06:53:14,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:14,960 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 513 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:14,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 443 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 2877 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 06:53:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190046 states. [2022-12-14 06:53:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190046 to 174908. [2022-12-14 06:53:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174908 states, 174300 states have (on average 2.979592656339644) internal successors, (519343), 174907 states have internal predecessors, (519343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174908 states to 174908 states and 519343 transitions. [2022-12-14 06:53:18,729 INFO L78 Accepts]: Start accepts. Automaton has 174908 states and 519343 transitions. Word has length 10 [2022-12-14 06:53:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:18,730 INFO L495 AbstractCegarLoop]: Abstraction has 174908 states and 519343 transitions. [2022-12-14 06:53:18,730 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) [2022-12-14 06:53:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 174908 states and 519343 transitions. [2022-12-14 06:53:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:53:18,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:18,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:18,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:53:18,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1509113456, now seen corresponding path program 1 times [2022-12-14 06:53:18,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:18,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734589609] [2022-12-14 06:53:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:18,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:18,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734589609] [2022-12-14 06:53:18,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734589609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:18,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:18,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175947520] [2022-12-14 06:53:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:18,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:53:18,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:18,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:53:18,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:18,938 INFO L87 Difference]: Start difference. First operand 174908 states and 519343 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:22,063 INFO L93 Difference]: Finished difference Result 257532 states and 763569 transitions. [2022-12-14 06:53:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:53:22,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 06:53:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:22,855 INFO L225 Difference]: With dead ends: 257532 [2022-12-14 06:53:22,855 INFO L226 Difference]: Without dead ends: 257532 [2022-12-14 06:53:22,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:22,856 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 392 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:22,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 328 Invalid, 2664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 06:53:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257532 states. [2022-12-14 06:53:26,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257532 to 194192. [2022-12-14 06:53:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194192 states, 193620 states have (on average 2.9830802603036877) internal successors, (577584), 194191 states have internal predecessors, (577584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194192 states to 194192 states and 577584 transitions. [2022-12-14 06:53:27,326 INFO L78 Accepts]: Start accepts. Automaton has 194192 states and 577584 transitions. Word has length 14 [2022-12-14 06:53:27,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:27,326 INFO L495 AbstractCegarLoop]: Abstraction has 194192 states and 577584 transitions. [2022-12-14 06:53:27,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 194192 states and 577584 transitions. [2022-12-14 06:53:27,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 06:53:27,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:27,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:27,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:53:27,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:27,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:27,329 INFO L85 PathProgramCache]: Analyzing trace with hash -806517927, now seen corresponding path program 1 times [2022-12-14 06:53:27,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:27,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069219218] [2022-12-14 06:53:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:27,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:27,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069219218] [2022-12-14 06:53:27,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069219218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:53:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310622630] [2022-12-14 06:53:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:27,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:53:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:53:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:27,754 INFO L87 Difference]: Start difference. First operand 194192 states and 577584 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:29,640 INFO L93 Difference]: Finished difference Result 199246 states and 592259 transitions. [2022-12-14 06:53:29,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:53:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 06:53:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:30,244 INFO L225 Difference]: With dead ends: 199246 [2022-12-14 06:53:30,244 INFO L226 Difference]: Without dead ends: 199246 [2022-12-14 06:53:30,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:53:30,245 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 204 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:30,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 265 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:53:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199246 states. [2022-12-14 06:53:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199246 to 199246. [2022-12-14 06:53:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199246 states, 198674 states have (on average 2.981059423980994) internal successors, (592259), 199245 states have internal predecessors, (592259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199246 states to 199246 states and 592259 transitions. [2022-12-14 06:53:34,720 INFO L78 Accepts]: Start accepts. Automaton has 199246 states and 592259 transitions. Word has length 15 [2022-12-14 06:53:34,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:34,721 INFO L495 AbstractCegarLoop]: Abstraction has 199246 states and 592259 transitions. [2022-12-14 06:53:34,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 199246 states and 592259 transitions. [2022-12-14 06:53:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:53:34,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:34,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:34,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:53:34,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1953504556, now seen corresponding path program 1 times [2022-12-14 06:53:34,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:34,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797317756] [2022-12-14 06:53:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:35,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797317756] [2022-12-14 06:53:35,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797317756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:35,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:35,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:53:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774383221] [2022-12-14 06:53:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:35,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:53:35,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:53:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:53:35,078 INFO L87 Difference]: Start difference. First operand 199246 states and 592259 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:38,009 INFO L93 Difference]: Finished difference Result 205236 states and 609761 transitions. [2022-12-14 06:53:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:53:38,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:53:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:38,753 INFO L225 Difference]: With dead ends: 205236 [2022-12-14 06:53:38,754 INFO L226 Difference]: Without dead ends: 205236 [2022-12-14 06:53:38,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:53:38,754 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 774 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:38,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 316 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 06:53:39,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205236 states. [2022-12-14 06:53:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205236 to 201556. [2022-12-14 06:53:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201556 states, 200986 states have (on average 2.9815310519140636) internal successors, (599246), 201555 states have internal predecessors, (599246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201556 states to 201556 states and 599246 transitions. [2022-12-14 06:53:43,148 INFO L78 Accepts]: Start accepts. Automaton has 201556 states and 599246 transitions. Word has length 19 [2022-12-14 06:53:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:43,149 INFO L495 AbstractCegarLoop]: Abstraction has 201556 states and 599246 transitions. [2022-12-14 06:53:43,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 201556 states and 599246 transitions. [2022-12-14 06:53:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:53:43,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:43,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:43,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:53:43,151 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1927840147, now seen corresponding path program 1 times [2022-12-14 06:53:43,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:43,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947376425] [2022-12-14 06:53:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:43,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:43,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:43,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947376425] [2022-12-14 06:53:43,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947376425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:43,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:43,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:53:43,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457026529] [2022-12-14 06:53:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:43,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:53:43,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:53:43,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:53:43,734 INFO L87 Difference]: Start difference. First operand 201556 states and 599246 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:47,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:47,683 INFO L93 Difference]: Finished difference Result 221643 states and 642923 transitions. [2022-12-14 06:53:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:53:47,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:53:47,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:48,451 INFO L225 Difference]: With dead ends: 221643 [2022-12-14 06:53:48,451 INFO L226 Difference]: Without dead ends: 221643 [2022-12-14 06:53:48,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:53:48,452 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 989 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 4115 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 4115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:48,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 594 Invalid, 4439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 4115 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 06:53:48,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221643 states. [2022-12-14 06:53:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221643 to 201555. [2022-12-14 06:53:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201555 states, 200985 states have (on average 2.981530960021892) internal successors, (599243), 201554 states have internal predecessors, (599243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201555 states to 201555 states and 599243 transitions. [2022-12-14 06:53:52,669 INFO L78 Accepts]: Start accepts. Automaton has 201555 states and 599243 transitions. Word has length 19 [2022-12-14 06:53:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:52,670 INFO L495 AbstractCegarLoop]: Abstraction has 201555 states and 599243 transitions. [2022-12-14 06:53:52,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 201555 states and 599243 transitions. [2022-12-14 06:53:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:53:52,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:52,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:52,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:53:52,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:53:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:52,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1514043729, now seen corresponding path program 2 times [2022-12-14 06:53:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:52,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358760690] [2022-12-14 06:53:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:52,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:53,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:53,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358760690] [2022-12-14 06:53:53,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358760690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:53,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:53,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:53:53,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75507714] [2022-12-14 06:53:53,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:53,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:53:53,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:53,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:53:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:53:53,778 INFO L87 Difference]: Start difference. First operand 201555 states and 599243 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:57,985 INFO L93 Difference]: Finished difference Result 258634 states and 756328 transitions. [2022-12-14 06:53:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:53:57,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:53:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:58,732 INFO L225 Difference]: With dead ends: 258634 [2022-12-14 06:53:58,732 INFO L226 Difference]: Without dead ends: 258634 [2022-12-14 06:53:58,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:53:58,733 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1063 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 4395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:58,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 423 Invalid, 4395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 06:53:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258634 states. [2022-12-14 06:54:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258634 to 204267. [2022-12-14 06:54:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204267 states, 203697 states have (on average 2.9821499580258912) internal successors, (607455), 204266 states have internal predecessors, (607455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204267 states to 204267 states and 607455 transitions. [2022-12-14 06:54:03,336 INFO L78 Accepts]: Start accepts. Automaton has 204267 states and 607455 transitions. Word has length 19 [2022-12-14 06:54:03,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:03,336 INFO L495 AbstractCegarLoop]: Abstraction has 204267 states and 607455 transitions. [2022-12-14 06:54:03,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand 204267 states and 607455 transitions. [2022-12-14 06:54:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:54:03,339 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:03,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:03,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:54:03,339 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:54:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash 839526423, now seen corresponding path program 3 times [2022-12-14 06:54:03,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:03,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664713993] [2022-12-14 06:54:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:03,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:03,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:03,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664713993] [2022-12-14 06:54:03,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664713993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:03,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:03,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:03,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446242449] [2022-12-14 06:54:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:03,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:54:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:03,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:54:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:54:03,689 INFO L87 Difference]: Start difference. First operand 204267 states and 607455 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:09,283 INFO L93 Difference]: Finished difference Result 279650 states and 810152 transitions. [2022-12-14 06:54:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:54:09,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:54:09,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:10,289 INFO L225 Difference]: With dead ends: 279650 [2022-12-14 06:54:10,289 INFO L226 Difference]: Without dead ends: 279650 [2022-12-14 06:54:10,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:54:10,290 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1002 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 4722 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 5206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 4722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 547 Invalid, 5206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 4722 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 06:54:10,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279650 states. [2022-12-14 06:54:14,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279650 to 204267. [2022-12-14 06:54:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204267 states, 203697 states have (on average 2.9821499580258912) internal successors, (607455), 204266 states have internal predecessors, (607455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204267 states to 204267 states and 607455 transitions. [2022-12-14 06:54:14,967 INFO L78 Accepts]: Start accepts. Automaton has 204267 states and 607455 transitions. Word has length 19 [2022-12-14 06:54:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:14,967 INFO L495 AbstractCegarLoop]: Abstraction has 204267 states and 607455 transitions. [2022-12-14 06:54:14,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:14,967 INFO L276 IsEmpty]: Start isEmpty. Operand 204267 states and 607455 transitions. [2022-12-14 06:54:14,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:54:14,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:14,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:14,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:54:14,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:54:14,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash 426100423, now seen corresponding path program 4 times [2022-12-14 06:54:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:14,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778914447] [2022-12-14 06:54:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:14,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:16,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:16,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:16,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778914447] [2022-12-14 06:54:16,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778914447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:16,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:16,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:16,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409114198] [2022-12-14 06:54:16,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:16,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:54:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:54:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:54:16,898 INFO L87 Difference]: Start difference. First operand 204267 states and 607455 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:21,788 INFO L93 Difference]: Finished difference Result 264083 states and 771342 transitions. [2022-12-14 06:54:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:54:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:54:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:22,580 INFO L225 Difference]: With dead ends: 264083 [2022-12-14 06:54:22,581 INFO L226 Difference]: Without dead ends: 264083 [2022-12-14 06:54:22,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:54:22,581 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 882 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:22,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 517 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 06:54:23,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264083 states. [2022-12-14 06:54:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264083 to 205331. [2022-12-14 06:54:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205331 states, 204761 states have (on average 2.982379457025508) internal successors, (610675), 205330 states have internal predecessors, (610675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205331 states to 205331 states and 610675 transitions. [2022-12-14 06:54:27,300 INFO L78 Accepts]: Start accepts. Automaton has 205331 states and 610675 transitions. Word has length 19 [2022-12-14 06:54:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:27,300 INFO L495 AbstractCegarLoop]: Abstraction has 205331 states and 610675 transitions. [2022-12-14 06:54:27,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:27,301 INFO L276 IsEmpty]: Start isEmpty. Operand 205331 states and 610675 transitions. [2022-12-14 06:54:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:54:27,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:27,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:27,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:54:27,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:54:27,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1334883129, now seen corresponding path program 5 times [2022-12-14 06:54:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:27,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031440125] [2022-12-14 06:54:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:28,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:28,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031440125] [2022-12-14 06:54:28,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031440125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:28,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:28,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:28,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564672235] [2022-12-14 06:54:28,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:28,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:54:28,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:28,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:54:28,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:54:28,371 INFO L87 Difference]: Start difference. First operand 205331 states and 610675 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:32,684 INFO L93 Difference]: Finished difference Result 280720 states and 820813 transitions. [2022-12-14 06:54:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:54:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:54:32,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:33,721 INFO L225 Difference]: With dead ends: 280720 [2022-12-14 06:54:33,721 INFO L226 Difference]: Without dead ends: 280720 [2022-12-14 06:54:33,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:54:33,722 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 830 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 3990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:33,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 455 Invalid, 3990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 06:54:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280720 states. [2022-12-14 06:54:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280720 to 209434. [2022-12-14 06:54:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209434 states, 208864 states have (on average 2.9847699938716103) internal successors, (623411), 209433 states have internal predecessors, (623411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209434 states to 209434 states and 623411 transitions. [2022-12-14 06:54:38,589 INFO L78 Accepts]: Start accepts. Automaton has 209434 states and 623411 transitions. Word has length 19 [2022-12-14 06:54:38,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:38,589 INFO L495 AbstractCegarLoop]: Abstraction has 209434 states and 623411 transitions. [2022-12-14 06:54:38,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 209434 states and 623411 transitions. [2022-12-14 06:54:38,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:54:38,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:38,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:38,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:54:38,592 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:54:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1603824501, now seen corresponding path program 6 times [2022-12-14 06:54:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831688874] [2022-12-14 06:54:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:38,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:38,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831688874] [2022-12-14 06:54:38,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831688874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:38,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:38,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:38,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407234811] [2022-12-14 06:54:38,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:38,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:54:38,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:38,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:54:38,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:54:38,839 INFO L87 Difference]: Start difference. First operand 209434 states and 623411 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:43,348 INFO L93 Difference]: Finished difference Result 351579 states and 1030062 transitions. [2022-12-14 06:54:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:54:43,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:54:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:44,420 INFO L225 Difference]: With dead ends: 351579 [2022-12-14 06:54:44,420 INFO L226 Difference]: Without dead ends: 351579 [2022-12-14 06:54:44,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:54:44,421 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 929 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 3931 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 3931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:44,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 397 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 3931 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 06:54:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351579 states. [2022-12-14 06:54:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351579 to 206962. [2022-12-14 06:54:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206962 states, 206392 states have (on average 2.9842629559285245) internal successors, (615928), 206961 states have internal predecessors, (615928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206962 states to 206962 states and 615928 transitions. [2022-12-14 06:54:49,898 INFO L78 Accepts]: Start accepts. Automaton has 206962 states and 615928 transitions. Word has length 19 [2022-12-14 06:54:49,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:49,899 INFO L495 AbstractCegarLoop]: Abstraction has 206962 states and 615928 transitions. [2022-12-14 06:54:49,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 206962 states and 615928 transitions. [2022-12-14 06:54:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:54:49,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:49,901 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] [2022-12-14 06:54:49,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:54:49,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:54:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash 324217234, now seen corresponding path program 1 times [2022-12-14 06:54:49,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:49,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39452243] [2022-12-14 06:54:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:49,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:50,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:50,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39452243] [2022-12-14 06:54:50,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39452243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:50,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:50,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798381733] [2022-12-14 06:54:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:50,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:54:50,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:54:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:54:50,811 INFO L87 Difference]: Start difference. First operand 206962 states and 615928 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:56,339 INFO L93 Difference]: Finished difference Result 270688 states and 790656 transitions. [2022-12-14 06:54:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:54:56,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-12-14 06:54:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:57,328 INFO L225 Difference]: With dead ends: 270688 [2022-12-14 06:54:57,328 INFO L226 Difference]: Without dead ends: 270688 [2022-12-14 06:54:57,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:54:57,329 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 873 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 6131 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 6485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 6131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:57,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 646 Invalid, 6485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 6131 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 06:54:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270688 states. [2022-12-14 06:55:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270688 to 207450. [2022-12-14 06:55:01,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207450 states, 206880 states have (on average 2.98517498066512) internal successors, (617573), 207449 states have internal predecessors, (617573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207450 states to 207450 states and 617573 transitions. [2022-12-14 06:55:01,966 INFO L78 Accepts]: Start accepts. Automaton has 207450 states and 617573 transitions. Word has length 20 [2022-12-14 06:55:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:01,966 INFO L495 AbstractCegarLoop]: Abstraction has 207450 states and 617573 transitions. [2022-12-14 06:55:01,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 207450 states and 617573 transitions. [2022-12-14 06:55:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 06:55:01,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:01,968 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] [2022-12-14 06:55:01,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:55:01,968 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:55:01,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:01,969 INFO L85 PathProgramCache]: Analyzing trace with hash 864722868, now seen corresponding path program 1 times [2022-12-14 06:55:01,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:01,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606921608] [2022-12-14 06:55:01,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:01,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:02,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:02,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606921608] [2022-12-14 06:55:02,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606921608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:02,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:02,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:55:02,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456638297] [2022-12-14 06:55:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:02,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:55:02,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:02,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:55:02,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:55:02,026 INFO L87 Difference]: Start difference. First operand 207450 states and 617573 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:02,894 INFO L93 Difference]: Finished difference Result 120669 states and 358879 transitions. [2022-12-14 06:55:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:55:02,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-12-14 06:55:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:03,293 INFO L225 Difference]: With dead ends: 120669 [2022-12-14 06:55:03,293 INFO L226 Difference]: Without dead ends: 120662 [2022-12-14 06:55:03,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:55:03,293 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 183 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:03,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 299 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:55:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120662 states. [2022-12-14 06:55:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120662 to 117043. [2022-12-14 06:55:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117043 states, 116677 states have (on average 3.015658613094269) internal successors, (351858), 117042 states have internal predecessors, (351858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117043 states to 117043 states and 351858 transitions. [2022-12-14 06:55:05,640 INFO L78 Accepts]: Start accepts. Automaton has 117043 states and 351858 transitions. Word has length 20 [2022-12-14 06:55:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:05,640 INFO L495 AbstractCegarLoop]: Abstraction has 117043 states and 351858 transitions. [2022-12-14 06:55:05,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 117043 states and 351858 transitions. [2022-12-14 06:55:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 06:55:05,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:05,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:55:05,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:55:05,642 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:55:05,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1427964047, now seen corresponding path program 1 times [2022-12-14 06:55:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:05,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413179589] [2022-12-14 06:55:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:05,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:05,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413179589] [2022-12-14 06:55:05,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413179589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:05,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:05,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:55:05,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582136662] [2022-12-14 06:55:05,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:05,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:55:05,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:55:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:55:05,799 INFO L87 Difference]: Start difference. First operand 117043 states and 351858 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:07,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:07,335 INFO L93 Difference]: Finished difference Result 120224 states and 361104 transitions. [2022-12-14 06:55:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:55:07,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-12-14 06:55:07,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:07,684 INFO L225 Difference]: With dead ends: 120224 [2022-12-14 06:55:07,684 INFO L226 Difference]: Without dead ends: 120224 [2022-12-14 06:55:07,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:55:07,685 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 212 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:07,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 258 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 06:55:07,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120224 states. [2022-12-14 06:55:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120224 to 118928. [2022-12-14 06:55:09,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118928 states, 118578 states have (on average 3.0132064969893233) internal successors, (357300), 118927 states have internal predecessors, (357300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118928 states to 118928 states and 357300 transitions. [2022-12-14 06:55:09,991 INFO L78 Accepts]: Start accepts. Automaton has 118928 states and 357300 transitions. Word has length 21 [2022-12-14 06:55:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:09,991 INFO L495 AbstractCegarLoop]: Abstraction has 118928 states and 357300 transitions. [2022-12-14 06:55:09,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 118928 states and 357300 transitions. [2022-12-14 06:55:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 06:55:09,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:09,993 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] [2022-12-14 06:55:09,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:55:09,993 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-14 06:55:09,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:09,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1292545010, now seen corresponding path program 1 times [2022-12-14 06:55:09,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:09,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186341372] [2022-12-14 06:55:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:09,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:10,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:10,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186341372] [2022-12-14 06:55:10,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186341372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:10,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:10,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:55:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134942706] [2022-12-14 06:55:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:10,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:55:10,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:55:10,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:55:10,290 INFO L87 Difference]: Start difference. First operand 118928 states and 357300 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)