./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur --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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- 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-38b53e6 [2022-11-26 00:14:22,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:14:22,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:14:22,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:14:22,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:14:22,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:14:22,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:14:22,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:14:22,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:14:22,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:14:22,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:14:22,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:14:22,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:14:22,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:14:22,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:14:22,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:14:22,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:14:22,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:14:22,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:14:22,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:14:22,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:14:22,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:14:22,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:14:22,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:14:22,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:14:22,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:14:22,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:14:22,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:14:22,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:14:22,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:14:22,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:14:22,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:14:22,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:14:22,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:14:22,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:14:22,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:14:22,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:14:22,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:14:22,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:14:22,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:14:22,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:14:22,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:14:22,703 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:14:22,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:14:22,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:14:22,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:14:22,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:14:22,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:14:22,707 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:14:22,707 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:14:22,707 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:14:22,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:14:22,709 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:14:22,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:14:22,710 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:14:22,710 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:14:22,710 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:14:22,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:14:22,711 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:14:22,711 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:14:22,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:14:22,712 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:14:22,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:14:22,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:14:22,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:14:22,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:14:22,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:14:22,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:14:22,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:14:22,715 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:14:22,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:14:22,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:14:22,716 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:14:22,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:14:22,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:14:22,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:14:22,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:14:22,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:14:22,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:14:22,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:14:22,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:14:22,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:14:22,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:14:22,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:14:22,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:14:22,721 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_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-11-26 00:14:23,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:14:23,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:14:23,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:14:23,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:14:23,047 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:14:23,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-26 00:14:25,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:14:26,342 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:14:26,343 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-26 00:14:26,366 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/bbaf1cbf4/523974e2634e414984c6f0d0ffc3cc2c/FLAG49c0dae6b [2022-11-26 00:14:26,381 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/bbaf1cbf4/523974e2634e414984c6f0d0ffc3cc2c [2022-11-26 00:14:26,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:14:26,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:14:26,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:14:26,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:14:26,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:14:26,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:14:26" (1/1) ... [2022-11-26 00:14:26,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6688ad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:26, skipping insertion in model container [2022-11-26 00:14:26,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:14:26" (1/1) ... [2022-11-26 00:14:26,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:14:26,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:14:26,582 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:14:26,908 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-26 00:14:26,919 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-26 00:14:26,919 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-26 00:14:26,926 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-26 00:14:26,928 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-26 00:14:26,931 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-26 00:14:26,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:14:26,950 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:14:26,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:14:27,028 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-26 00:14:27,029 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-26 00:14:27,029 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-26 00:14:27,032 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-26 00:14:27,033 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-26 00:14:27,033 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-26 00:14:27,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:14:27,098 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:14:27,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27 WrapperNode [2022-11-26 00:14:27,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:14:27,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:14:27,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:14:27,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:14:27,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,198 INFO L138 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-11-26 00:14:27,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:14:27,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:14:27,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:14:27,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:14:27,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,244 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:14:27,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:14:27,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:14:27,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:14:27,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (1/1) ... [2022-11-26 00:14:27,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:14:27,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:27,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:14:27,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:14:27,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:14:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:14:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:14:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:14:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:14:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:14:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-11-26 00:14:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-11-26 00:14:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:14:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:14:27,345 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:14:27,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:14:27,539 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:14:28,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:14:28,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:14:28,217 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:14:28,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:14:28 BoogieIcfgContainer [2022-11-26 00:14:28,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:14:28,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:14:28,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:14:28,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:14:28,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:14:26" (1/3) ... [2022-11-26 00:14:28,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d828a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:14:28, skipping insertion in model container [2022-11-26 00:14:28,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:14:27" (2/3) ... [2022-11-26 00:14:28,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d828a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:14:28, skipping insertion in model container [2022-11-26 00:14:28,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:14:28" (3/3) ... [2022-11-26 00:14:28,237 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-11-26 00:14:28,256 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:14:28,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:14:28,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-26 00:14:28,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:14:28,395 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-26 00:14:28,433 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:14:28,447 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-26 00:14:28,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-26 00:14:28,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-11-26 00:14:28,628 INFO L130 PetriNetUnfolder]: 9/237 cut-off events. [2022-11-26 00:14:28,629 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-26 00:14:28,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 515 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2022-11-26 00:14:28,656 INFO L119 LiptonReduction]: Number of co-enabled transitions 16182 [2022-11-26 00:14:41,922 INFO L134 LiptonReduction]: Checked pairs total: 162558 [2022-11-26 00:14:41,922 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-11-26 00:14:41,931 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 216 flow [2022-11-26 00:14:42,045 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:42,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:14:42,082 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;@131260d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:14:42,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-26 00:14:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:14:42,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:42,096 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:14:42,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:42,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash 808, now seen corresponding path program 1 times [2022-11-26 00:14:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:42,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341149467] [2022-11-26 00:14:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:42,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:42,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:42,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341149467] [2022-11-26 00:14:42,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341149467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:42,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:42,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:14:42,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193314156] [2022-11-26 00:14:42,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:42,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:14:42,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:14:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:14:42,310 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:42,430 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-11-26 00:14:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:14:42,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:14:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:42,488 INFO L225 Difference]: With dead ends: 2194 [2022-11-26 00:14:42,488 INFO L226 Difference]: Without dead ends: 2194 [2022-11-26 00:14:42,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:14:42,495 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:42,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:14:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-11-26 00:14:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-11-26 00:14:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-11-26 00:14:42,661 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-11-26 00:14:42,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:42,662 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-11-26 00:14:42,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-11-26 00:14:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:14:42,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:42,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:42,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:14:42,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:42,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 258736366, now seen corresponding path program 1 times [2022-11-26 00:14:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:42,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808828494] [2022-11-26 00:14:42,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:42,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:43,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:43,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808828494] [2022-11-26 00:14:43,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808828494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:43,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:43,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:43,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331653632] [2022-11-26 00:14:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:43,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:43,270 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 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) [2022-11-26 00:14:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:44,166 INFO L93 Difference]: Finished difference Result 3292 states and 6647 transitions. [2022-11-26 00:14:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:44,167 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 [2022-11-26 00:14:44,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:44,182 INFO L225 Difference]: With dead ends: 3292 [2022-11-26 00:14:44,182 INFO L226 Difference]: Without dead ends: 3292 [2022-11-26 00:14:44,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:44,183 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 110 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:44,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 102 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:14:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2022-11-26 00:14:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2592. [2022-11-26 00:14:44,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2537 states have (on average 2.06267244777296) internal successors, (5233), 2591 states have internal predecessors, (5233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 5233 transitions. [2022-11-26 00:14:44,267 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 5233 transitions. Word has length 9 [2022-11-26 00:14:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:44,268 INFO L495 AbstractCegarLoop]: Abstraction has 2592 states and 5233 transitions. [2022-11-26 00:14:44,268 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) [2022-11-26 00:14:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 5233 transitions. [2022-11-26 00:14:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:14:44,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:44,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:44,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:14:44,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1004048598, now seen corresponding path program 1 times [2022-11-26 00:14:44,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:44,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019545162] [2022-11-26 00:14:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:44,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:44,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019545162] [2022-11-26 00:14:44,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019545162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:44,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:44,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:14:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271583228] [2022-11-26 00:14:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:44,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:14:44,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:14:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:44,312 INFO L87 Difference]: Start difference. First operand 2592 states and 5233 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:44,400 INFO L93 Difference]: Finished difference Result 4418 states and 8921 transitions. [2022-11-26 00:14:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:14:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:14:44,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:44,421 INFO L225 Difference]: With dead ends: 4418 [2022-11-26 00:14:44,421 INFO L226 Difference]: Without dead ends: 4418 [2022-11-26 00:14:44,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:44,423 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:44,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:14:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2022-11-26 00:14:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 2643. [2022-11-26 00:14:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2588 states have (on average 2.061823802163833) internal successors, (5336), 2642 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 5336 transitions. [2022-11-26 00:14:44,549 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 5336 transitions. Word has length 9 [2022-11-26 00:14:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:44,550 INFO L495 AbstractCegarLoop]: Abstraction has 2643 states and 5336 transitions. [2022-11-26 00:14:44,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 5336 transitions. [2022-11-26 00:14:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:14:44,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:44,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:44,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:14:44,551 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2065645319, now seen corresponding path program 1 times [2022-11-26 00:14:44,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:44,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269445391] [2022-11-26 00:14:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:44,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:44,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269445391] [2022-11-26 00:14:44,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269445391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:44,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:44,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:14:44,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45517374] [2022-11-26 00:14:44,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:44,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:14:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:14:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:44,597 INFO L87 Difference]: Start difference. First operand 2643 states and 5336 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:44,686 INFO L93 Difference]: Finished difference Result 4639 states and 9370 transitions. [2022-11-26 00:14:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:14:44,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:14:44,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:44,705 INFO L225 Difference]: With dead ends: 4639 [2022-11-26 00:14:44,706 INFO L226 Difference]: Without dead ends: 4639 [2022-11-26 00:14:44,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:44,707 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 86 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:44,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 185 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:14:44,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-11-26 00:14:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 2685. [2022-11-26 00:14:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-11-26 00:14:44,798 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-11-26 00:14:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:44,798 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-11-26 00:14:44,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-11-26 00:14:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:14:44,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:44,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:44,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:14:44,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 273430088, now seen corresponding path program 1 times [2022-11-26 00:14:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:44,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902681014] [2022-11-26 00:14:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:45,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:45,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902681014] [2022-11-26 00:14:45,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902681014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:45,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:45,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:45,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584238393] [2022-11-26 00:14:45,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:45,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:45,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:45,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:45,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:45,010 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:45,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:45,963 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-11-26 00:14:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:45,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:14:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:45,981 INFO L225 Difference]: With dead ends: 4029 [2022-11-26 00:14:45,981 INFO L226 Difference]: Without dead ends: 4029 [2022-11-26 00:14:45,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:45,982 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 87 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:45,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 97 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:14:45,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-11-26 00:14:46,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-11-26 00:14:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-11-26 00:14:46,073 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-11-26 00:14:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:46,073 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-11-26 00:14:46,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-11-26 00:14:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:14:46,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:46,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:46,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:14:46,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:46,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash 69120469, now seen corresponding path program 1 times [2022-11-26 00:14:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:46,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125164008] [2022-11-26 00:14:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:46,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:46,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125164008] [2022-11-26 00:14:46,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125164008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:46,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:46,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984583102] [2022-11-26 00:14:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:46,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:46,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:46,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:46,324 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 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) [2022-11-26 00:14:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:47,120 INFO L93 Difference]: Finished difference Result 3300 states and 6654 transitions. [2022-11-26 00:14:47,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:47,120 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 [2022-11-26 00:14:47,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:47,134 INFO L225 Difference]: With dead ends: 3300 [2022-11-26 00:14:47,135 INFO L226 Difference]: Without dead ends: 3300 [2022-11-26 00:14:47,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:47,136 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:47,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 115 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:14:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-26 00:14:47,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-11-26 00:14:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:47,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-11-26 00:14:47,219 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-11-26 00:14:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:47,219 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-11-26 00:14:47,220 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) [2022-11-26 00:14:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-11-26 00:14:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:14:47,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:47,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:47,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:14:47,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1964878187, now seen corresponding path program 1 times [2022-11-26 00:14:47,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:47,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760726061] [2022-11-26 00:14:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:47,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:47,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760726061] [2022-11-26 00:14:47,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760726061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:47,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:47,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144522184] [2022-11-26 00:14:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:47,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:47,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:47,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:47,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:47,479 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:48,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:48,162 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-11-26 00:14:48,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:48,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:14:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:48,175 INFO L225 Difference]: With dead ends: 4367 [2022-11-26 00:14:48,176 INFO L226 Difference]: Without dead ends: 4367 [2022-11-26 00:14:48,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:48,177 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 84 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:48,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 100 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:14:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-11-26 00:14:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-11-26 00:14:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-11-26 00:14:48,267 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-11-26 00:14:48,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:48,267 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-11-26 00:14:48,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-11-26 00:14:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:14:48,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:48,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:48,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:14:48,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1827960211, now seen corresponding path program 1 times [2022-11-26 00:14:48,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:48,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329348182] [2022-11-26 00:14:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:48,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:48,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329348182] [2022-11-26 00:14:48,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329348182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:48,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:48,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859984804] [2022-11-26 00:14:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:48,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:48,636 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:49,297 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-11-26 00:14:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:49,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-11-26 00:14:49,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:49,308 INFO L225 Difference]: With dead ends: 3633 [2022-11-26 00:14:49,308 INFO L226 Difference]: Without dead ends: 3633 [2022-11-26 00:14:49,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:49,309 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:49,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 112 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:14:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-11-26 00:14:49,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-11-26 00:14:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-11-26 00:14:49,392 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-11-26 00:14:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:49,393 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-11-26 00:14:49,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-11-26 00:14:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-26 00:14:49,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:49,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:49,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:14:49,396 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2036408778, now seen corresponding path program 1 times [2022-11-26 00:14:49,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:49,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563710414] [2022-11-26 00:14:49,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:49,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:49,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:49,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563710414] [2022-11-26 00:14:49,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563710414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:49,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:49,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:14:49,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433224724] [2022-11-26 00:14:49,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:14:49,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:14:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:49,819 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:50,555 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-11-26 00:14:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:14:50,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-26 00:14:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:50,566 INFO L225 Difference]: With dead ends: 3795 [2022-11-26 00:14:50,566 INFO L226 Difference]: Without dead ends: 3795 [2022-11-26 00:14:50,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:14:50,567 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:50,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 106 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:14:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-11-26 00:14:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-11-26 00:14:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-11-26 00:14:50,653 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-11-26 00:14:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:50,654 INFO L495 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-11-26 00:14:50,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-11-26 00:14:50,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:14:50,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:50,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:50,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:14:50,656 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:50,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:50,657 INFO L85 PathProgramCache]: Analyzing trace with hash 992999868, now seen corresponding path program 1 times [2022-11-26 00:14:50,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:50,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147558878] [2022-11-26 00:14:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:52,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:52,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147558878] [2022-11-26 00:14:52,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147558878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:52,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:52,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:14:52,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992548665] [2022-11-26 00:14:52,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:52,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:14:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:14:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:14:52,942 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:59,680 INFO L93 Difference]: Finished difference Result 7280 states and 14777 transitions. [2022-11-26 00:14:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-26 00:14:59,680 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:14:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:59,702 INFO L225 Difference]: With dead ends: 7280 [2022-11-26 00:14:59,702 INFO L226 Difference]: Without dead ends: 7280 [2022-11-26 00:14:59,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-11-26 00:14:59,704 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 673 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:59,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 548 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:14:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2022-11-26 00:14:59,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 4547. [2022-11-26 00:14:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4504 states have (on average 2.053063943161634) internal successors, (9247), 4546 states have internal predecessors, (9247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 9247 transitions. [2022-11-26 00:14:59,821 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 9247 transitions. Word has length 31 [2022-11-26 00:14:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:59,822 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 9247 transitions. [2022-11-26 00:14:59,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:14:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 9247 transitions. [2022-11-26 00:14:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:14:59,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:59,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:59,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:14:59,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:14:59,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash 845915545, now seen corresponding path program 1 times [2022-11-26 00:14:59,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:59,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050809708] [2022-11-26 00:14:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:01,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:01,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050809708] [2022-11-26 00:15:01,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050809708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:01,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:01,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:15:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699298510] [2022-11-26 00:15:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:01,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:15:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:01,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:15:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:15:01,654 INFO L87 Difference]: Start difference. First operand 4547 states and 9247 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:05,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:05,729 INFO L93 Difference]: Finished difference Result 7954 states and 16226 transitions. [2022-11-26 00:15:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:15:05,731 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:15:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:05,751 INFO L225 Difference]: With dead ends: 7954 [2022-11-26 00:15:05,751 INFO L226 Difference]: Without dead ends: 7954 [2022-11-26 00:15:05,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:15:05,752 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 534 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 3870 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:05,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 594 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3870 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:15:05,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7954 states. [2022-11-26 00:15:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7954 to 5443. [2022-11-26 00:15:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5400 states have (on average 2.0824074074074073) internal successors, (11245), 5442 states have internal predecessors, (11245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 11245 transitions. [2022-11-26 00:15:05,885 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 11245 transitions. Word has length 31 [2022-11-26 00:15:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:05,886 INFO L495 AbstractCegarLoop]: Abstraction has 5443 states and 11245 transitions. [2022-11-26 00:15:05,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 11245 transitions. [2022-11-26 00:15:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:15:05,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:05,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:05,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:15:05,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:05,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:05,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1142326430, now seen corresponding path program 1 times [2022-11-26 00:15:05,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:05,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768635339] [2022-11-26 00:15:05,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:05,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:07,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:15:07,277 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:383) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:343) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:343) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:198) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:296) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-26 00:15:07,285 INFO L158 Benchmark]: Toolchain (without parser) took 40899.51ms. Allocated memory was 140.5MB in the beginning and 524.3MB in the end (delta: 383.8MB). Free memory was 107.0MB in the beginning and 445.9MB in the end (delta: -338.9MB). Peak memory consumption was 278.0MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,285 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:15:07,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.91ms. Allocated memory is still 140.5MB. Free memory was 106.6MB in the beginning and 80.3MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.64ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 76.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,286 INFO L158 Benchmark]: Boogie Preprocessor took 63.52ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,286 INFO L158 Benchmark]: RCFGBuilder took 958.26ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 73.5MB in the beginning and 137.0MB in the end (delta: -63.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,287 INFO L158 Benchmark]: TraceAbstraction took 39058.92ms. Allocated memory was 174.1MB in the beginning and 524.3MB in the end (delta: 350.2MB). Free memory was 136.0MB in the beginning and 445.9MB in the end (delta: -309.9MB). Peak memory consumption was 271.9MB. Max. memory is 16.1GB. [2022-11-26 00:15:07,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.91ms. Allocated memory is still 140.5MB. Free memory was 106.6MB in the beginning and 80.3MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.64ms. Allocated memory is still 140.5MB. Free memory was 80.3MB in the beginning and 76.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.52ms. Allocated memory is still 140.5MB. Free memory was 76.5MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 958.26ms. Allocated memory was 140.5MB in the beginning and 174.1MB in the end (delta: 33.6MB). Free memory was 73.5MB in the beginning and 137.0MB in the end (delta: -63.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * TraceAbstraction took 39058.92ms. Allocated memory was 174.1MB in the beginning and 524.3MB in the end (delta: 350.2MB). Free memory was 136.0MB in the beginning and 445.9MB in the end (delta: -309.9MB). Peak memory consumption was 271.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5s, 233 PlacesBefore, 103 PlacesAfterwards, 238 TransitionsBefore, 104 TransitionsAfterwards, 16182 CoEnabledTransitionPairs, 16 FixpointIterations, 59 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 4 ChoiceCompositions, 174 TotalNumberOfCompositions, 162558 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33200, independent: 30284, independent conditional: 0, independent unconditional: 30284, dependent: 2916, dependent conditional: 0, dependent unconditional: 2916, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10389, independent: 10090, independent conditional: 0, independent unconditional: 10090, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10389, independent: 8856, independent conditional: 0, independent unconditional: 8856, dependent: 1533, dependent conditional: 0, dependent unconditional: 1533, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1533, independent: 1234, independent conditional: 0, independent unconditional: 1234, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2906, independent: 1996, independent conditional: 0, independent unconditional: 1996, dependent: 910, dependent conditional: 0, dependent unconditional: 910, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33200, independent: 20194, independent conditional: 0, independent unconditional: 20194, dependent: 2617, dependent conditional: 0, dependent unconditional: 2617, unknown: 10389, unknown conditional: 0, unknown unconditional: 10389] , Statistics on independence cache: Total cache size (in pairs): 1976, Positive cache size: 1723, Positive conditional cache size: 0, Positive unconditional cache size: 1723, Negative cache size: 253, Negative conditional cache size: 0, Negative unconditional cache size: 253, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-26 00:15:07,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur --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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- 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-38b53e6 [2022-11-26 00:15:09,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:15:09,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:15:09,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:15:09,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:15:09,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:15:09,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:15:09,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:15:09,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:15:09,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:15:09,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:15:09,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:15:09,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:15:09,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:15:09,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:15:09,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:15:09,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:15:09,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:15:09,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:15:09,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:15:09,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:15:09,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:15:09,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:15:09,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:15:09,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:15:09,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:15:09,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:15:09,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:15:09,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:15:09,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:15:09,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:15:09,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:15:09,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:15:09,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:15:09,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:15:09,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:15:09,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:15:09,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:15:09,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:15:09,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:15:09,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:15:09,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-11-26 00:15:09,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:15:09,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:15:09,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:15:09,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:15:09,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:15:09,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:15:09,857 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:15:09,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:15:09,858 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:15:09,858 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:15:09,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:15:09,858 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:15:09,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:15:09,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:15:09,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:15:09,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:15:09,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:15:09,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:15:09,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:15:09,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:15:09,862 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:15:09,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:15:09,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:15:09,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:15:09,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:15:09,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:15:09,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:15:09,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:15:09,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:15:09,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:15:09,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:09,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:15:09,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:15:09,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:15:09,866 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:15:09,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:15:09,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:15:09,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:15:09,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:15:09,867 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-11-26 00:15:10,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:15:10,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:15:10,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:15:10,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:15:10,317 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:15:10,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-26 00:15:13,683 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:15:14,124 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:15:14,125 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-26 00:15:14,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/619862af6/4c118fe4411e4501a273d31dc7ec1b07/FLAG48864fdc4 [2022-11-26 00:15:14,157 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/data/619862af6/4c118fe4411e4501a273d31dc7ec1b07 [2022-11-26 00:15:14,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:15:14,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:15:14,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:14,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:15:14,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:15:14,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:14" (1/1) ... [2022-11-26 00:15:14,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3c81ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:14, skipping insertion in model container [2022-11-26 00:15:14,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:14" (1/1) ... [2022-11-26 00:15:14,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:15:14,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:15:14,483 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:14,975 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-26 00:15:14,981 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-26 00:15:14,982 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-26 00:15:14,993 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-26 00:15:14,995 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-26 00:15:14,996 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-26 00:15:15,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:15,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:15:15,049 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:15,174 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-26 00:15:15,175 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-26 00:15:15,176 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-26 00:15:15,179 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-26 00:15:15,180 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-26 00:15:15,181 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_96bd56e0-c171-4e8f-b96b-a74b85764904/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-26 00:15:15,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:15,308 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:15:15,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15 WrapperNode [2022-11-26 00:15:15,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:15,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:15,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:15:15,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:15:15,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,430 INFO L138 Inliner]: procedures = 228, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-11-26 00:15:15,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:15,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:15:15,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:15:15,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:15:15,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:15:15,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:15:15,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:15:15,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:15:15,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (1/1) ... [2022-11-26 00:15:15,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:15,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:15,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:15:15,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:15:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:15:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:15:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:15:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:15:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:15:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:15:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-11-26 00:15:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-11-26 00:15:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:15:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:15:15,658 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:15:15,849 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:15:15,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:15:16,499 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:15:16,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:15:16,508 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:15:16,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:16 BoogieIcfgContainer [2022-11-26 00:15:16,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:15:16,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:15:16,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:15:16,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:15:16,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:15:14" (1/3) ... [2022-11-26 00:15:16,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69629944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:16, skipping insertion in model container [2022-11-26 00:15:16,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:15" (2/3) ... [2022-11-26 00:15:16,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69629944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:16, skipping insertion in model container [2022-11-26 00:15:16,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:16" (3/3) ... [2022-11-26 00:15:16,520 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-11-26 00:15:16,529 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:15:16,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:15:16,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-26 00:15:16,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:15:16,706 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-26 00:15:16,747 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:15:16,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-26 00:15:16,766 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-26 00:15:16,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-11-26 00:15:16,891 INFO L130 PetriNetUnfolder]: 9/237 cut-off events. [2022-11-26 00:15:16,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-26 00:15:16,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 514 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 179. Up to 2 conditions per place. [2022-11-26 00:15:16,910 INFO L119 LiptonReduction]: Number of co-enabled transitions 16008 [2022-11-26 00:15:41,446 INFO L134 LiptonReduction]: Checked pairs total: 163142 [2022-11-26 00:15:41,447 INFO L136 LiptonReduction]: Total number of compositions: 173 [2022-11-26 00:15:41,457 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 216 flow [2022-11-26 00:15:41,569 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:41,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:15:41,613 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;@1885d728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:15:41,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-26 00:15:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:15:41,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:41,627 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:15:41,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:41,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash 807, now seen corresponding path program 1 times [2022-11-26 00:15:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:41,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485282577] [2022-11-26 00:15:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:41,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:41,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:41,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:41,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:15:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:41,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:15:41,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:41,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:41,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:41,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485282577] [2022-11-26 00:15:41,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485282577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:41,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:41,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:15:41,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610614918] [2022-11-26 00:15:41,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:15:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:41,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:15:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:15:41,823 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:42,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:42,061 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-11-26 00:15:42,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:15:42,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:15:42,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:42,111 INFO L225 Difference]: With dead ends: 2194 [2022-11-26 00:15:42,111 INFO L226 Difference]: Without dead ends: 2194 [2022-11-26 00:15:42,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:15:42,115 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:42,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:15:42,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-11-26 00:15:42,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-11-26 00:15:42,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:42,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-11-26 00:15:42,303 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-11-26 00:15:42,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:42,303 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-11-26 00:15:42,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-11-26 00:15:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:15:42,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:42,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:42,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-26 00:15:42,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:42,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:42,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:42,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1325941841, now seen corresponding path program 1 times [2022-11-26 00:15:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:42,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114663229] [2022-11-26 00:15:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:42,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:42,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:42,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:42,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:15:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:42,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:15:42,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:42,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:42,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:42,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114663229] [2022-11-26 00:15:42,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114663229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:42,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:42,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:15:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814392971] [2022-11-26 00:15:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:42,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:42,698 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:42,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:42,937 INFO L93 Difference]: Finished difference Result 4043 states and 8170 transitions. [2022-11-26 00:15:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:42,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:15:42,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:42,958 INFO L225 Difference]: With dead ends: 4043 [2022-11-26 00:15:42,959 INFO L226 Difference]: Without dead ends: 4043 [2022-11-26 00:15:42,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:42,960 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 86 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:42,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 187 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2022-11-26 00:15:43,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 2237. [2022-11-26 00:15:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2182 states have (on average 2.0692025664527955) internal successors, (4515), 2236 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 4515 transitions. [2022-11-26 00:15:43,055 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 4515 transitions. Word has length 9 [2022-11-26 00:15:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:43,055 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 4515 transitions. [2022-11-26 00:15:43,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 4515 transitions. [2022-11-26 00:15:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:15:43,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:43,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:43,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:43,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:43,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash 498973350, now seen corresponding path program 1 times [2022-11-26 00:15:43,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:43,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77004830] [2022-11-26 00:15:43,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:43,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:43,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:43,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:43,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:15:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:43,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:43,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:43,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:15:43,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:15:43,515 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:43,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:15:43,568 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:43,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:15:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:43,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:43,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77004830] [2022-11-26 00:15:43,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77004830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:43,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:43,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376576932] [2022-11-26 00:15:43,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:43,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:43,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:43,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:43,624 INFO L87 Difference]: Start difference. First operand 2237 states and 4515 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) [2022-11-26 00:15:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:45,540 INFO L93 Difference]: Finished difference Result 3333 states and 6729 transitions. [2022-11-26 00:15:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:45,541 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 [2022-11-26 00:15:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:45,556 INFO L225 Difference]: With dead ends: 3333 [2022-11-26 00:15:45,557 INFO L226 Difference]: Without dead ends: 3333 [2022-11-26 00:15:45,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:45,558 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 110 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:45,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 102 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:15:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-11-26 00:15:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2633. [2022-11-26 00:15:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2578 states have (on average 2.0616757176105507) internal successors, (5315), 2632 states have internal predecessors, (5315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:45,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 5315 transitions. [2022-11-26 00:15:45,666 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 5315 transitions. Word has length 9 [2022-11-26 00:15:45,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:45,666 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 5315 transitions. [2022-11-26 00:15:45,666 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) [2022-11-26 00:15:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 5315 transitions. [2022-11-26 00:15:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:15:45,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:45,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:45,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:45,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:45,883 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1043881525, now seen corresponding path program 1 times [2022-11-26 00:15:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:45,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323249149] [2022-11-26 00:15:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:45,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:45,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:45,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:45,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-26 00:15:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:46,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:15:46,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:46,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:46,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:46,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323249149] [2022-11-26 00:15:46,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323249149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:46,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:46,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:15:46,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958359079] [2022-11-26 00:15:46,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:46,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:46,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:46,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:46,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:46,022 INFO L87 Difference]: Start difference. First operand 2633 states and 5315 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:46,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:46,194 INFO L93 Difference]: Finished difference Result 4485 states and 9055 transitions. [2022-11-26 00:15:46,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:46,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:15:46,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:46,216 INFO L225 Difference]: With dead ends: 4485 [2022-11-26 00:15:46,216 INFO L226 Difference]: Without dead ends: 4485 [2022-11-26 00:15:46,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:46,217 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:46,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:15:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2022-11-26 00:15:46,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 2685. [2022-11-26 00:15:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:46,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-11-26 00:15:46,346 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-11-26 00:15:46,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:46,347 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-11-26 00:15:46,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-11-26 00:15:46,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:15:46,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:46,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:46,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:46,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:46,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:46,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:46,563 INFO L85 PathProgramCache]: Analyzing trace with hash 273308326, now seen corresponding path program 1 times [2022-11-26 00:15:46,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:46,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100288041] [2022-11-26 00:15:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:46,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:46,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:46,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:46,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-26 00:15:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:46,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:46,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:46,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:15:46,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:15:46,780 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:46,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:15:46,837 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:46,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:15:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:46,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:46,894 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:46,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100288041] [2022-11-26 00:15:46,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100288041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:46,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:46,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:46,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475280515] [2022-11-26 00:15:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:46,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:46,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:46,896 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:48,607 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-11-26 00:15:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:48,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:15:48,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:48,658 INFO L225 Difference]: With dead ends: 4029 [2022-11-26 00:15:48,658 INFO L226 Difference]: Without dead ends: 4029 [2022-11-26 00:15:48,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:48,661 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 109 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:48,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 82 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:15:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-11-26 00:15:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-11-26 00:15:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-11-26 00:15:48,758 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-11-26 00:15:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:48,759 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-11-26 00:15:48,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-11-26 00:15:48,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:15:48,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:48,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:48,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:48,979 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1208204915, now seen corresponding path program 1 times [2022-11-26 00:15:48,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:48,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289724798] [2022-11-26 00:15:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:48,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:48,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:48,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:49,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-26 00:15:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:49,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:49,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:49,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:15:49,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2022-11-26 00:15:49,184 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:49,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 47 [2022-11-26 00:15:49,254 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:49,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 64 [2022-11-26 00:15:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:49,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:49,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289724798] [2022-11-26 00:15:49,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289724798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:49,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:49,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:49,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857941878] [2022-11-26 00:15:49,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:49,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:49,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:49,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:49,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:49,329 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 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) [2022-11-26 00:15:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:51,580 INFO L93 Difference]: Finished difference Result 3300 states and 6654 transitions. [2022-11-26 00:15:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:51,582 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 [2022-11-26 00:15:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:51,596 INFO L225 Difference]: With dead ends: 3300 [2022-11-26 00:15:51,597 INFO L226 Difference]: Without dead ends: 3300 [2022-11-26 00:15:51,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:51,598 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:51,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 115 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-26 00:15:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-26 00:15:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-11-26 00:15:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-11-26 00:15:51,679 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-11-26 00:15:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:51,680 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-11-26 00:15:51,680 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) [2022-11-26 00:15:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-11-26 00:15:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:15:51,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:51,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:51,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:51,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:51,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash -851576950, now seen corresponding path program 1 times [2022-11-26 00:15:51,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:51,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393581769] [2022-11-26 00:15:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:51,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:51,897 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:51,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-26 00:15:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:52,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:52,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:52,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:15:52,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:15:52,123 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:52,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:15:52,182 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:52,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:15:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:52,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:52,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:52,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393581769] [2022-11-26 00:15:52,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393581769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:52,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:52,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:52,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265345662] [2022-11-26 00:15:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:52,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:52,234 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:53,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:53,525 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-11-26 00:15:53,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:53,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:15:53,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:53,538 INFO L225 Difference]: With dead ends: 4367 [2022-11-26 00:15:53,538 INFO L226 Difference]: Without dead ends: 4367 [2022-11-26 00:15:53,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:53,539 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 100 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:53,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 94 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:15:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-11-26 00:15:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-11-26 00:15:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-11-26 00:15:53,640 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-11-26 00:15:53,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:53,641 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-11-26 00:15:53,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-11-26 00:15:53,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:15:53,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:53,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:53,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:53,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:53,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1155285492, now seen corresponding path program 1 times [2022-11-26 00:15:53,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:53,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887303016] [2022-11-26 00:15:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:53,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:53,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:53,865 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:53,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-26 00:15:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:53,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:53,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:54,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:15:54,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:15:54,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:54,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:15:54,109 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:54,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:15:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:54,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:54,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:54,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887303016] [2022-11-26 00:15:54,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887303016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:54,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:54,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:54,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833246655] [2022-11-26 00:15:54,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:54,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:54,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:54,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:54,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:54,173 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:56,177 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-11-26 00:15:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:56,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-11-26 00:15:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:56,188 INFO L225 Difference]: With dead ends: 3633 [2022-11-26 00:15:56,188 INFO L226 Difference]: Without dead ends: 3633 [2022-11-26 00:15:56,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:56,189 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 96 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:56,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 117 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:15:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-11-26 00:15:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-11-26 00:15:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:56,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-11-26 00:15:56,309 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-11-26 00:15:56,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:56,309 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-11-26 00:15:56,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-11-26 00:15:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-26 00:15:56,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:56,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:56,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:56,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:56,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:56,526 INFO L85 PathProgramCache]: Analyzing trace with hash 394972790, now seen corresponding path program 1 times [2022-11-26 00:15:56,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:56,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531429048] [2022-11-26 00:15:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:56,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:56,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:56,528 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:56,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-26 00:15:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:56,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-26 00:15:56,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:56,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:15:56,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:15:56,784 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:56,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:15:56,848 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:15:56,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:15:56,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:56,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:56,926 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:56,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531429048] [2022-11-26 00:15:56,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531429048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:56,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:56,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:15:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509773093] [2022-11-26 00:15:56,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:56,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:15:56,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:15:56,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:56,928 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:58,910 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-11-26 00:15:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:15:58,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-26 00:15:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:58,923 INFO L225 Difference]: With dead ends: 3795 [2022-11-26 00:15:58,923 INFO L226 Difference]: Without dead ends: 3795 [2022-11-26 00:15:58,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:15:58,924 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:58,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 103 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:15:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-11-26 00:15:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-11-26 00:15:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-11-26 00:15:59,012 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-11-26 00:15:59,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:59,012 INFO L495 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-11-26 00:15:59,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-11-26 00:15:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:15:59,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:59,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:59,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:15:59,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:59,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:15:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -774320138, now seen corresponding path program 1 times [2022-11-26 00:15:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:59,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075861438] [2022-11-26 00:15:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:59,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:15:59,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:59,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:15:59,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-26 00:15:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:59,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:15:59,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:59,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:15:59,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:15:59,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:15:59,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:00,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:16:00,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:16:00,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:16:00,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:16:00,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:16:00,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:16:00,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:00,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:00,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:00,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:00,702 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:00,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:16:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:00,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:00,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:00,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075861438] [2022-11-26 00:16:00,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075861438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:00,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:00,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:16:00,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226180029] [2022-11-26 00:16:00,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:00,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:16:00,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:00,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:16:00,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:16:00,801 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:08,870 INFO L93 Difference]: Finished difference Result 6198 states and 12545 transitions. [2022-11-26 00:16:08,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:16:08,872 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:08,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:08,891 INFO L225 Difference]: With dead ends: 6198 [2022-11-26 00:16:08,891 INFO L226 Difference]: Without dead ends: 6198 [2022-11-26 00:16:08,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:16:08,892 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 495 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:08,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 570 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 00:16:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6198 states. [2022-11-26 00:16:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6198 to 4355. [2022-11-26 00:16:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 4312 states have (on average 2.0470779220779223) internal successors, (8827), 4354 states have internal predecessors, (8827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 8827 transitions. [2022-11-26 00:16:09,007 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 8827 transitions. Word has length 31 [2022-11-26 00:16:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:09,007 INFO L495 AbstractCegarLoop]: Abstraction has 4355 states and 8827 transitions. [2022-11-26 00:16:09,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 8827 transitions. [2022-11-26 00:16:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:09,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:09,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:09,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:09,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:09,225 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:09,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:09,225 INFO L85 PathProgramCache]: Analyzing trace with hash 421807931, now seen corresponding path program 1 times [2022-11-26 00:16:09,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:09,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268909578] [2022-11-26 00:16:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:09,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:09,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:09,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-26 00:16:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:09,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-26 00:16:09,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:09,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:16:09,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:16:09,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:10,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:16:10,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:16:10,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:16:10,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:16:10,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,324 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:10,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:16:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,378 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:10,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:16:10,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:10,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:16:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:10,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:10,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:10,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268909578] [2022-11-26 00:16:10,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268909578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:10,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:10,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:16:10,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920237058] [2022-11-26 00:16:10,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:10,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:16:10,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:10,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:16:10,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:16:10,514 INFO L87 Difference]: Start difference. First operand 4355 states and 8827 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:15,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:15,798 INFO L93 Difference]: Finished difference Result 5939 states and 12021 transitions. [2022-11-26 00:16:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:16:15,799 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:15,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:15,812 INFO L225 Difference]: With dead ends: 5939 [2022-11-26 00:16:15,813 INFO L226 Difference]: Without dead ends: 5939 [2022-11-26 00:16:15,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:16:15,814 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 433 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:15,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 508 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 00:16:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2022-11-26 00:16:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 4374. [2022-11-26 00:16:15,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4374 states, 4331 states have (on average 2.0464096051720158) internal successors, (8863), 4373 states have internal predecessors, (8863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 8863 transitions. [2022-11-26 00:16:15,911 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 8863 transitions. Word has length 31 [2022-11-26 00:16:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:15,912 INFO L495 AbstractCegarLoop]: Abstraction has 4374 states and 8863 transitions. [2022-11-26 00:16:15,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 8863 transitions. [2022-11-26 00:16:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:15,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:15,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:15,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:16,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:16,130 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:16,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash -709403264, now seen corresponding path program 1 times [2022-11-26 00:16:16,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:16,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641312285] [2022-11-26 00:16:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:16,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:16,133 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:16,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-26 00:16:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:16,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:16:16,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:16,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:16:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:16:16,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:16,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:16:16,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:16:16,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:16:16,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:16:16,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:16:16,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:16,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:16:17,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:16:17,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:16:17,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:17,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:16:17,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:17,740 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:17,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:17,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:17,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641312285] [2022-11-26 00:16:17,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641312285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:17,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:17,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:16:17,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088792491] [2022-11-26 00:16:17,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:17,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:16:17,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:17,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:16:17,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:16:17,810 INFO L87 Difference]: Start difference. First operand 4374 states and 8863 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:24,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:24,050 INFO L93 Difference]: Finished difference Result 8697 states and 17659 transitions. [2022-11-26 00:16:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:16:24,051 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:24,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:24,068 INFO L225 Difference]: With dead ends: 8697 [2022-11-26 00:16:24,068 INFO L226 Difference]: Without dead ends: 8697 [2022-11-26 00:16:24,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:16:24,069 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 434 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:24,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 433 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:16:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-11-26 00:16:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 6102. [2022-11-26 00:16:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 6059 states have (on average 2.0742696814655885) internal successors, (12568), 6101 states have internal predecessors, (12568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:24,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 12568 transitions. [2022-11-26 00:16:24,214 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 12568 transitions. Word has length 31 [2022-11-26 00:16:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:24,214 INFO L495 AbstractCegarLoop]: Abstraction has 6102 states and 12568 transitions. [2022-11-26 00:16:24,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 12568 transitions. [2022-11-26 00:16:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:24,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:24,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:24,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-26 00:16:24,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:24,432 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1152651440, now seen corresponding path program 2 times [2022-11-26 00:16:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:24,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33743397] [2022-11-26 00:16:24,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:16:24,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:24,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:24,434 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:24,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-26 00:16:24,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:16:24,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:16:24,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-26 00:16:24,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:24,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:24,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:16:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:24,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:16:24,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:24,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:16:24,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:16:24,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:16:25,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:16:25,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:16:25,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:16:25,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:16:25,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:16:25,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:16:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:25,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:16:25,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:25,882 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:25,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:25,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:25,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33743397] [2022-11-26 00:16:25,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33743397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:25,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:25,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:16:25,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042638615] [2022-11-26 00:16:25,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:25,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:16:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:16:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:16:25,951 INFO L87 Difference]: Start difference. First operand 6102 states and 12568 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:32,741 INFO L93 Difference]: Finished difference Result 9213 states and 18714 transitions. [2022-11-26 00:16:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:16:32,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:32,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:32,757 INFO L225 Difference]: With dead ends: 9213 [2022-11-26 00:16:32,758 INFO L226 Difference]: Without dead ends: 9213 [2022-11-26 00:16:32,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:16:32,759 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 512 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:32,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 436 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:16:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9213 states. [2022-11-26 00:16:32,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9213 to 6138. [2022-11-26 00:16:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6095 states have (on average 2.0741591468416734) internal successors, (12642), 6137 states have internal predecessors, (12642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 12642 transitions. [2022-11-26 00:16:32,930 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 12642 transitions. Word has length 31 [2022-11-26 00:16:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:32,931 INFO L495 AbstractCegarLoop]: Abstraction has 6138 states and 12642 transitions. [2022-11-26 00:16:32,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 12642 transitions. [2022-11-26 00:16:32,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:32,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:32,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:32,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:33,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:33,147 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 832535924, now seen corresponding path program 3 times [2022-11-26 00:16:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:33,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790384991] [2022-11-26 00:16:33,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:16:33,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:33,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:33,150 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:33,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-26 00:16:33,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:16:33,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:16:33,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:16:33,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:33,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:16:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:16:33,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:33,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:16:33,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:16:33,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:16:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:16:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:16:33,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:16:33,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:16:33,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:16:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:16:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:16:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:33,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:16:34,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:16:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:16:34,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:34,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:34,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:34,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:16:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:34,464 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:34,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:34,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:34,532 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:34,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790384991] [2022-11-26 00:16:34,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790384991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:34,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:34,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:16:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611253905] [2022-11-26 00:16:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:34,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:16:34,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:16:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:16:34,534 INFO L87 Difference]: Start difference. First operand 6138 states and 12642 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:41,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:41,286 INFO L93 Difference]: Finished difference Result 9350 states and 18988 transitions. [2022-11-26 00:16:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:16:41,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:41,299 INFO L225 Difference]: With dead ends: 9350 [2022-11-26 00:16:41,299 INFO L226 Difference]: Without dead ends: 9350 [2022-11-26 00:16:41,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:16:41,300 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 470 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:41,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 438 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-26 00:16:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2022-11-26 00:16:41,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 6179. [2022-11-26 00:16:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6179 states, 6136 states have (on average 2.074315514993481) internal successors, (12728), 6178 states have internal predecessors, (12728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6179 states to 6179 states and 12728 transitions. [2022-11-26 00:16:41,454 INFO L78 Accepts]: Start accepts. Automaton has 6179 states and 12728 transitions. Word has length 31 [2022-11-26 00:16:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:41,454 INFO L495 AbstractCegarLoop]: Abstraction has 6179 states and 12728 transitions. [2022-11-26 00:16:41,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 6179 states and 12728 transitions. [2022-11-26 00:16:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:41,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:41,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:41,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-26 00:16:41,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:41,670 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:41,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1709615984, now seen corresponding path program 4 times [2022-11-26 00:16:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:41,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477118316] [2022-11-26 00:16:41,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:16:41,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:41,673 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-26 00:16:41,855 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:16:41,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:16:41,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:16:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:41,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:16:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:41,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:16:41,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:16:41,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:16:42,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:16:42,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:16:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:16:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:16:42,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:16:42,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:16:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:16:42,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:16:42,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:16:42,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:16:42,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:16:42,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:16:42,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:42,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:16:42,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:42,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:42,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:42,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:42,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:42,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477118316] [2022-11-26 00:16:42,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477118316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:42,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:42,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:16:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128375104] [2022-11-26 00:16:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:42,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:16:42,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:16:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:16:42,907 INFO L87 Difference]: Start difference. First operand 6179 states and 12728 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:49,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:49,104 INFO L93 Difference]: Finished difference Result 9492 states and 19272 transitions. [2022-11-26 00:16:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:16:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:49,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:49,118 INFO L225 Difference]: With dead ends: 9492 [2022-11-26 00:16:49,119 INFO L226 Difference]: Without dead ends: 9492 [2022-11-26 00:16:49,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:16:49,120 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 555 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:49,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 436 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:16:49,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2022-11-26 00:16:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 6220. [2022-11-26 00:16:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6177 states have (on average 2.074469807349846) internal successors, (12814), 6219 states have internal predecessors, (12814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 12814 transitions. [2022-11-26 00:16:49,261 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 12814 transitions. Word has length 31 [2022-11-26 00:16:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:49,262 INFO L495 AbstractCegarLoop]: Abstraction has 6220 states and 12814 transitions. [2022-11-26 00:16:49,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 12814 transitions. [2022-11-26 00:16:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:49,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:49,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:49,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:49,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:49,478 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:49,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:49,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1960830858, now seen corresponding path program 5 times [2022-11-26 00:16:49,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:49,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125440369] [2022-11-26 00:16:49,480 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:16:49,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:49,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:49,481 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:49,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-26 00:16:49,642 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:16:49,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:16:49,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 00:16:49,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:49,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:16:49,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:16:49,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:16:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:16:50,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:50,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:16:50,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:16:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:50,328 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:50,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:16:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:50,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:50,382 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:50,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125440369] [2022-11-26 00:16:50,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125440369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:50,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:50,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:16:50,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531685292] [2022-11-26 00:16:50,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:50,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:16:50,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:50,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:16:50,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:16:50,384 INFO L87 Difference]: Start difference. First operand 6220 states and 12814 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:54,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:54,247 INFO L93 Difference]: Finished difference Result 13659 states and 27918 transitions. [2022-11-26 00:16:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:16:54,248 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:54,268 INFO L225 Difference]: With dead ends: 13659 [2022-11-26 00:16:54,268 INFO L226 Difference]: Without dead ends: 13659 [2022-11-26 00:16:54,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:16:54,269 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 768 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:54,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 436 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-26 00:16:54,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13659 states. [2022-11-26 00:16:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 7523. [2022-11-26 00:16:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7523 states, 7480 states have (on average 2.129679144385027) internal successors, (15930), 7522 states have internal predecessors, (15930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7523 states to 7523 states and 15930 transitions. [2022-11-26 00:16:54,455 INFO L78 Accepts]: Start accepts. Automaton has 7523 states and 15930 transitions. Word has length 31 [2022-11-26 00:16:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:54,456 INFO L495 AbstractCegarLoop]: Abstraction has 7523 states and 15930 transitions. [2022-11-26 00:16:54,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7523 states and 15930 transitions. [2022-11-26 00:16:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:54,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:54,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:54,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:54,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:54,712 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:54,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:54,712 INFO L85 PathProgramCache]: Analyzing trace with hash 289274293, now seen corresponding path program 1 times [2022-11-26 00:16:54,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:54,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420786385] [2022-11-26 00:16:54,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:54,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:54,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:54,714 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:54,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-26 00:16:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:54,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:16:54,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:55,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:16:55,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:16:55,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:16:55,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:16:55,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:55,409 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:55,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:16:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:16:55,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:55,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:55,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420786385] [2022-11-26 00:16:55,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420786385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:55,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:55,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:16:55,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943893132] [2022-11-26 00:16:55,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:55,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:16:55,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:55,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:16:55,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:16:55,462 INFO L87 Difference]: Start difference. First operand 7523 states and 15930 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:59,177 INFO L93 Difference]: Finished difference Result 11321 states and 22940 transitions. [2022-11-26 00:16:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:16:59,178 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:16:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:59,198 INFO L225 Difference]: With dead ends: 11321 [2022-11-26 00:16:59,199 INFO L226 Difference]: Without dead ends: 11321 [2022-11-26 00:16:59,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:16:59,200 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 651 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:59,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 431 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-26 00:16:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2022-11-26 00:16:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 7796. [2022-11-26 00:16:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-26 00:16:59,350 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-26 00:16:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:59,351 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-26 00:16:59,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:16:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-26 00:16:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:16:59,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:59,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:59,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:59,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:59,568 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:16:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash 509759285, now seen corresponding path program 2 times [2022-11-26 00:16:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:59,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627779347] [2022-11-26 00:16:59,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:16:59,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:59,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:59,569 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:59,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-26 00:16:59,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:16:59,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:16:59,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:16:59,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:00,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:17:00,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:17:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:17:00,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:17:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:00,370 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:00,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:17:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:00,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:00,426 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:00,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627779347] [2022-11-26 00:17:00,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627779347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:00,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:00,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:17:00,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121795848] [2022-11-26 00:17:00,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:00,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:17:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:00,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:17:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:17:00,429 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:04,560 INFO L93 Difference]: Finished difference Result 9691 states and 19956 transitions. [2022-11-26 00:17:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:17:04,561 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:04,574 INFO L225 Difference]: With dead ends: 9691 [2022-11-26 00:17:04,575 INFO L226 Difference]: Without dead ends: 9691 [2022-11-26 00:17:04,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:17:04,576 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 541 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:04,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 458 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:17:04,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9691 states. [2022-11-26 00:17:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9691 to 7796. [2022-11-26 00:17:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-26 00:17:04,710 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-26 00:17:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:04,711 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-26 00:17:04,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-26 00:17:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:04,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:04,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:04,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:04,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:04,927 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:04,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash 631306565, now seen corresponding path program 3 times [2022-11-26 00:17:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:04,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632237090] [2022-11-26 00:17:04,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:17:04,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:04,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:04,929 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:04,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-26 00:17:05,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:17:05,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:05,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:17:05,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:05,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:17:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:17:05,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:17:05,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:17:05,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:05,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:05,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:17:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:05,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:05,711 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:05,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632237090] [2022-11-26 00:17:05,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632237090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:05,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:05,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:17:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657376021] [2022-11-26 00:17:05,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:05,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:17:05,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:05,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:17:05,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:17:05,713 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:09,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:09,927 INFO L93 Difference]: Finished difference Result 9707 states and 19988 transitions. [2022-11-26 00:17:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:17:09,928 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:09,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:09,941 INFO L225 Difference]: With dead ends: 9707 [2022-11-26 00:17:09,941 INFO L226 Difference]: Without dead ends: 9707 [2022-11-26 00:17:09,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:17:09,942 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 629 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:09,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 462 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-26 00:17:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2022-11-26 00:17:10,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 7796. [2022-11-26 00:17:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-26 00:17:10,167 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-26 00:17:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:10,167 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-26 00:17:10,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-26 00:17:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:10,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:10,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:10,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-11-26 00:17:10,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:10,384 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 132010579, now seen corresponding path program 4 times [2022-11-26 00:17:10,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619775567] [2022-11-26 00:17:10,385 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:17:10,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:10,386 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:10,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-26 00:17:10,572 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:17:10,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:10,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:17:10,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:10,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:17:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:17:10,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:17:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:10,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:17:11,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:11,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:11,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:17:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:11,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:11,218 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:11,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619775567] [2022-11-26 00:17:11,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619775567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:11,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:11,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:17:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323258158] [2022-11-26 00:17:11,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:11,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:17:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:17:11,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:17:11,220 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:15,663 INFO L93 Difference]: Finished difference Result 9739 states and 20052 transitions. [2022-11-26 00:17:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:17:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:15,676 INFO L225 Difference]: With dead ends: 9739 [2022-11-26 00:17:15,676 INFO L226 Difference]: Without dead ends: 9739 [2022-11-26 00:17:15,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:17:15,677 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 586 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:15,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 446 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 00:17:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9739 states. [2022-11-26 00:17:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9739 to 7796. [2022-11-26 00:17:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-26 00:17:15,780 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-26 00:17:15,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:15,780 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-26 00:17:15,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-26 00:17:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:15,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:15,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:15,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:15,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:15,997 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:15,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1602388569, now seen corresponding path program 5 times [2022-11-26 00:17:15,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:15,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800119426] [2022-11-26 00:17:15,998 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:17:15,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:15,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:15,999 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:16,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-26 00:17:16,188 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:17:16,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:16,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:17:16,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:16,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:17:16,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:17:16,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:17:16,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:17:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:16,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:16,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:17:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:16,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:16,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:16,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800119426] [2022-11-26 00:17:16,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800119426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:16,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:16,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:17:16,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439850188] [2022-11-26 00:17:16,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:16,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:17:16,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:16,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:17:16,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:17:16,775 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:20,247 INFO L93 Difference]: Finished difference Result 9755 states and 20084 transitions. [2022-11-26 00:17:20,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:17:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:20,261 INFO L225 Difference]: With dead ends: 9755 [2022-11-26 00:17:20,261 INFO L226 Difference]: Without dead ends: 9755 [2022-11-26 00:17:20,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:17:20,262 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 566 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:20,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 432 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-26 00:17:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2022-11-26 00:17:20,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 7708. [2022-11-26 00:17:20,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7665 states have (on average 2.130593607305936) internal successors, (16331), 7707 states have internal predecessors, (16331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 16331 transitions. [2022-11-26 00:17:20,424 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 16331 transitions. Word has length 31 [2022-11-26 00:17:20,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:20,425 INFO L495 AbstractCegarLoop]: Abstraction has 7708 states and 16331 transitions. [2022-11-26 00:17:20,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 16331 transitions. [2022-11-26 00:17:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:20,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:20,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:20,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:20,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:20,628 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:20,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash -917737190, now seen corresponding path program 2 times [2022-11-26 00:17:20,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:20,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083936243] [2022-11-26 00:17:20,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:17:20,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:20,630 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:20,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-26 00:17:20,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:17:20,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:20,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 00:17:20,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:20,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:17:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:20,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:17:20,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:17:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:21,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:17:21,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:17:21,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:17:21,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:17:21,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:17:21,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:21,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:21,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:21,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:21,966 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:21,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:17:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:22,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:22,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:22,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083936243] [2022-11-26 00:17:22,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083936243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:22,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:22,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:17:22,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903389351] [2022-11-26 00:17:22,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:22,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:17:22,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:22,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:17:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:17:22,084 INFO L87 Difference]: Start difference. First operand 7708 states and 16331 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:31,774 INFO L93 Difference]: Finished difference Result 12367 states and 25966 transitions. [2022-11-26 00:17:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:17:31,776 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:31,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:31,792 INFO L225 Difference]: With dead ends: 12367 [2022-11-26 00:17:31,792 INFO L226 Difference]: Without dead ends: 12367 [2022-11-26 00:17:31,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=222, Invalid=648, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:17:31,793 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 642 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:31,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 642 Invalid, 3566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-26 00:17:31,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-11-26 00:17:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 10037. [2022-11-26 00:17:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 9994 states have (on average 2.1346808084850912) internal successors, (21334), 10036 states have internal predecessors, (21334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 21334 transitions. [2022-11-26 00:17:31,941 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 21334 transitions. Word has length 31 [2022-11-26 00:17:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:31,941 INFO L495 AbstractCegarLoop]: Abstraction has 10037 states and 21334 transitions. [2022-11-26 00:17:31,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 21334 transitions. [2022-11-26 00:17:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:31,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:31,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:31,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:32,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:32,155 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:32,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash 278390879, now seen corresponding path program 2 times [2022-11-26 00:17:32,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:32,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528538559] [2022-11-26 00:17:32,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:17:32,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:32,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:32,157 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:32,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-26 00:17:32,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:17:32,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:32,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 00:17:32,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:32,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:32,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:17:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:32,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:17:32,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:17:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:32,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:17:33,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:17:33,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:17:33,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:33,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:17:33,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,247 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:33,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:17:33,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:33,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:33,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:17:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:33,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:33,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:33,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528538559] [2022-11-26 00:17:33,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528538559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:33,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:33,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:17:33,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840336433] [2022-11-26 00:17:33,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:33,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:17:33,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:33,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:17:33,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:17:33,372 INFO L87 Difference]: Start difference. First operand 10037 states and 21334 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:40,042 INFO L93 Difference]: Finished difference Result 11965 states and 25039 transitions. [2022-11-26 00:17:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:17:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:40,058 INFO L225 Difference]: With dead ends: 11965 [2022-11-26 00:17:40,058 INFO L226 Difference]: Without dead ends: 11965 [2022-11-26 00:17:40,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:17:40,059 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 701 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:40,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 506 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:17:40,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2022-11-26 00:17:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 9597. [2022-11-26 00:17:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9554 states have (on average 2.126020514967553) internal successors, (20312), 9596 states have internal predecessors, (20312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 20312 transitions. [2022-11-26 00:17:40,179 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 20312 transitions. Word has length 31 [2022-11-26 00:17:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:40,179 INFO L495 AbstractCegarLoop]: Abstraction has 9597 states and 20312 transitions. [2022-11-26 00:17:40,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 20312 transitions. [2022-11-26 00:17:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:40,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:40,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:40,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:40,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:40,387 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:40,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash -852820316, now seen corresponding path program 6 times [2022-11-26 00:17:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:40,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398310953] [2022-11-26 00:17:40,388 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:17:40,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:40,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:40,389 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:40,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-26 00:17:40,625 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:17:40,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:40,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:17:40,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:40,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:40,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:17:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:40,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:17:40,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:17:40,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:17:40,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:17:40,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:17:40,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:17:41,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:17:41,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:17:41,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:17:41,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:17:41,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:17:41,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:17:41,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:17:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:41,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:41,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:17:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:41,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:41,880 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:41,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398310953] [2022-11-26 00:17:41,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398310953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:41,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:41,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:17:41,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522210580] [2022-11-26 00:17:41,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:41,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:17:41,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:41,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:17:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:17:41,882 INFO L87 Difference]: Start difference. First operand 9597 states and 20312 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:47,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:47,795 INFO L93 Difference]: Finished difference Result 13235 states and 27757 transitions. [2022-11-26 00:17:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:17:47,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:47,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:47,817 INFO L225 Difference]: With dead ends: 13235 [2022-11-26 00:17:47,817 INFO L226 Difference]: Without dead ends: 13235 [2022-11-26 00:17:47,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:17:47,818 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 396 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:47,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 385 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:17:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13235 states. [2022-11-26 00:17:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13235 to 10510. [2022-11-26 00:17:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10510 states, 10467 states have (on average 2.122289099073278) internal successors, (22214), 10509 states have internal predecessors, (22214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10510 states to 10510 states and 22214 transitions. [2022-11-26 00:17:47,981 INFO L78 Accepts]: Start accepts. Automaton has 10510 states and 22214 transitions. Word has length 31 [2022-11-26 00:17:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:47,981 INFO L495 AbstractCegarLoop]: Abstraction has 10510 states and 22214 transitions. [2022-11-26 00:17:47,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10510 states and 22214 transitions. [2022-11-26 00:17:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:47,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:47,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:47,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:48,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:48,188 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:48,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1009234388, now seen corresponding path program 7 times [2022-11-26 00:17:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:48,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125410878] [2022-11-26 00:17:48,189 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:17:48,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:48,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:48,190 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:48,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-26 00:17:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:48,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:17:48,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:17:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:17:48,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:17:48,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:17:48,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:17:48,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:17:48,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:17:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:17:48,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:48,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:48,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:48,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:49,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:17:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:17:49,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:17:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:49,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:17:49,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:49,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:49,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:49,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:17:49,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:49,528 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:49,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:17:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:49,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:49,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:49,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125410878] [2022-11-26 00:17:49,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125410878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:49,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:49,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:17:49,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096342615] [2022-11-26 00:17:49,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:49,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:17:49,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:49,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:17:49,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:17:49,585 INFO L87 Difference]: Start difference. First operand 10510 states and 22214 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:55,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:55,449 INFO L93 Difference]: Finished difference Result 13765 states and 28847 transitions. [2022-11-26 00:17:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:17:55,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:17:55,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:55,470 INFO L225 Difference]: With dead ends: 13765 [2022-11-26 00:17:55,470 INFO L226 Difference]: Without dead ends: 13765 [2022-11-26 00:17:55,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:17:55,471 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 446 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:55,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 386 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:17:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13765 states. [2022-11-26 00:17:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13765 to 10553. [2022-11-26 00:17:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10553 states, 10510 states have (on average 2.12197906755471) internal successors, (22302), 10552 states have internal predecessors, (22302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 22302 transitions. [2022-11-26 00:17:55,620 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 22302 transitions. Word has length 31 [2022-11-26 00:17:55,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:55,620 INFO L495 AbstractCegarLoop]: Abstraction has 10553 states and 22302 transitions. [2022-11-26 00:17:55,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:17:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 22302 transitions. [2022-11-26 00:17:55,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:17:55,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:55,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:55,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-26 00:17:55,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:55,824 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:17:55,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:55,824 INFO L85 PathProgramCache]: Analyzing trace with hash 689118872, now seen corresponding path program 8 times [2022-11-26 00:17:55,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:17:55,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029452056] [2022-11-26 00:17:55,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:17:55,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:17:55,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:17:55,827 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:17:55,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-26 00:17:56,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:17:56,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:17:56,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:17:56,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:56,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:17:56,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:17:56,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:17:56,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:17:56,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:17:56,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:17:56,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:17:56,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:17:56,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:17:56,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:17:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:17:56,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:17:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:17:56,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:17:56,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:17:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:17:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:56,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:56,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:17:56,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:17:57,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:57,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:57,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:17:57,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:17:57,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:17:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:57,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:57,121 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:17:57,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029452056] [2022-11-26 00:17:57,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029452056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:57,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:57,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:17:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484155593] [2022-11-26 00:17:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:17:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:17:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:17:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:17:57,123 INFO L87 Difference]: Start difference. First operand 10553 states and 22302 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:03,610 INFO L93 Difference]: Finished difference Result 13916 states and 29149 transitions. [2022-11-26 00:18:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:18:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:03,631 INFO L225 Difference]: With dead ends: 13916 [2022-11-26 00:18:03,631 INFO L226 Difference]: Without dead ends: 13916 [2022-11-26 00:18:03,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:18:03,632 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 409 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:03,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 396 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:18:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13916 states. [2022-11-26 00:18:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13916 to 10601. [2022-11-26 00:18:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10601 states, 10558 states have (on average 2.121803371850729) internal successors, (22402), 10600 states have internal predecessors, (22402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10601 states to 10601 states and 22402 transitions. [2022-11-26 00:18:03,776 INFO L78 Accepts]: Start accepts. Automaton has 10601 states and 22402 transitions. Word has length 31 [2022-11-26 00:18:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:03,776 INFO L495 AbstractCegarLoop]: Abstraction has 10601 states and 22402 transitions. [2022-11-26 00:18:03,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10601 states and 22402 transitions. [2022-11-26 00:18:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:03,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:03,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:03,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:03,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:03,980 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1853033036, now seen corresponding path program 9 times [2022-11-26 00:18:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:03,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001682431] [2022-11-26 00:18:03,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:03,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:03,981 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:03,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-26 00:18:04,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:04,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:04,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:18:04,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:04,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:18:04,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:04,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:18:04,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:18:04,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:18:04,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:18:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:18:04,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:18:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:18:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:18:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:18:04,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:18:04,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:18:04,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:18:04,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:18:04,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:04,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:04,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:04,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:05,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:18:05,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:05,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:05,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:05,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:05,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:05,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:05,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:05,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:05,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001682431] [2022-11-26 00:18:05,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001682431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:05,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:05,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:18:05,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495306359] [2022-11-26 00:18:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:05,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:18:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:05,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:18:05,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:18:05,187 INFO L87 Difference]: Start difference. First operand 10601 states and 22402 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:12,183 INFO L93 Difference]: Finished difference Result 14072 states and 29461 transitions. [2022-11-26 00:18:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:18:12,184 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:12,205 INFO L225 Difference]: With dead ends: 14072 [2022-11-26 00:18:12,206 INFO L226 Difference]: Without dead ends: 14072 [2022-11-26 00:18:12,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:18:12,206 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 485 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:12,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 400 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:18:12,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-11-26 00:18:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 10649. [2022-11-26 00:18:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10649 states, 10606 states have (on average 2.1216292664529512) internal successors, (22502), 10648 states have internal predecessors, (22502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10649 states to 10649 states and 22502 transitions. [2022-11-26 00:18:12,424 INFO L78 Accepts]: Start accepts. Automaton has 10649 states and 22502 transitions. Word has length 31 [2022-11-26 00:18:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:12,424 INFO L495 AbstractCegarLoop]: Abstraction has 10649 states and 22502 transitions. [2022-11-26 00:18:12,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10649 states and 22502 transitions. [2022-11-26 00:18:12,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:12,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:12,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:12,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-26 00:18:12,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:12,628 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:12,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1817413806, now seen corresponding path program 10 times [2022-11-26 00:18:12,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:12,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530369410] [2022-11-26 00:18:12,629 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:18:12,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:12,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:12,630 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:12,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-26 00:18:12,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:18:12,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:12,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 00:18:12,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:13,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:18:13,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:18:13,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:18:13,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:18:13,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:13,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:13,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:18:13,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:13,425 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:13,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:13,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:13,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:13,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530369410] [2022-11-26 00:18:13,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530369410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:13,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:13,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:18:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416764197] [2022-11-26 00:18:13,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:13,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:18:13,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:13,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:18:13,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:18:13,481 INFO L87 Difference]: Start difference. First operand 10649 states and 22502 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:18,878 INFO L93 Difference]: Finished difference Result 21808 states and 44673 transitions. [2022-11-26 00:18:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:18:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:18,914 INFO L225 Difference]: With dead ends: 21808 [2022-11-26 00:18:18,914 INFO L226 Difference]: Without dead ends: 21808 [2022-11-26 00:18:18,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:18:18,915 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 695 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:18,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 452 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:18:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21808 states. [2022-11-26 00:18:19,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21808 to 11027. [2022-11-26 00:18:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11027 states, 10984 states have (on average 2.13401310997815) internal successors, (23440), 11026 states have internal predecessors, (23440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11027 states to 11027 states and 23440 transitions. [2022-11-26 00:18:19,130 INFO L78 Accepts]: Start accepts. Automaton has 11027 states and 23440 transitions. Word has length 31 [2022-11-26 00:18:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:19,130 INFO L495 AbstractCegarLoop]: Abstraction has 11027 states and 23440 transitions. [2022-11-26 00:18:19,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 11027 states and 23440 transitions. [2022-11-26 00:18:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:19,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:19,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:19,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:19,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:19,335 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 145857241, now seen corresponding path program 6 times [2022-11-26 00:18:19,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:19,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467614681] [2022-11-26 00:18:19,336 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:18:19,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:19,338 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:19,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-26 00:18:19,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:18:19,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:19,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:18:19,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:19,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:18:19,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:18:19,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:18:20,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:18:20,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,087 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:20,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:18:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:20,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:20,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:20,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467614681] [2022-11-26 00:18:20,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467614681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:20,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:20,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:18:20,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763712082] [2022-11-26 00:18:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:20,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:18:20,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:18:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:18:20,144 INFO L87 Difference]: Start difference. First operand 11027 states and 23440 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:24,353 INFO L93 Difference]: Finished difference Result 18385 states and 37687 transitions. [2022-11-26 00:18:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:18:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:24,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:24,451 INFO L225 Difference]: With dead ends: 18385 [2022-11-26 00:18:24,451 INFO L226 Difference]: Without dead ends: 18385 [2022-11-26 00:18:24,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:18:24,452 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 679 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:24,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 434 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:18:24,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18385 states. [2022-11-26 00:18:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18385 to 9235. [2022-11-26 00:18:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9235 states, 9192 states have (on average 2.130330722367276) internal successors, (19582), 9234 states have internal predecessors, (19582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9235 states to 9235 states and 19582 transitions. [2022-11-26 00:18:24,607 INFO L78 Accepts]: Start accepts. Automaton has 9235 states and 19582 transitions. Word has length 31 [2022-11-26 00:18:24,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:24,607 INFO L495 AbstractCegarLoop]: Abstraction has 9235 states and 19582 transitions. [2022-11-26 00:18:24,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 9235 states and 19582 transitions. [2022-11-26 00:18:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:24,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:24,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:24,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:24,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:24,812 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:24,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:24,812 INFO L85 PathProgramCache]: Analyzing trace with hash 966810952, now seen corresponding path program 3 times [2022-11-26 00:18:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:24,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932203744] [2022-11-26 00:18:24,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:24,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:24,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:24,814 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-26 00:18:25,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:25,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:25,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:18:25,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:25,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:25,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:25,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:18:25,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:25,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:25,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:18:25,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:18:25,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:18:25,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:18:25,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:18:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:26,104 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:26,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:18:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:26,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:26,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:26,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932203744] [2022-11-26 00:18:26,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932203744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:26,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:26,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:18:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709061452] [2022-11-26 00:18:26,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:26,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:18:26,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:26,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:18:26,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:18:26,197 INFO L87 Difference]: Start difference. First operand 9235 states and 19582 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:35,971 INFO L93 Difference]: Finished difference Result 12220 states and 25672 transitions. [2022-11-26 00:18:35,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:18:35,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:35,989 INFO L225 Difference]: With dead ends: 12220 [2022-11-26 00:18:35,989 INFO L226 Difference]: Without dead ends: 12220 [2022-11-26 00:18:35,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:18:35,990 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 525 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 3949 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:35,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 660 Invalid, 4017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3949 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-26 00:18:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12220 states. [2022-11-26 00:18:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12220 to 9737. [2022-11-26 00:18:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9737 states, 9694 states have (on average 2.124303693005983) internal successors, (20593), 9736 states have internal predecessors, (20593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 20593 transitions. [2022-11-26 00:18:36,125 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 20593 transitions. Word has length 31 [2022-11-26 00:18:36,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:36,125 INFO L495 AbstractCegarLoop]: Abstraction has 9737 states and 20593 transitions. [2022-11-26 00:18:36,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 20593 transitions. [2022-11-26 00:18:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:36,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:36,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:36,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:36,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:36,329 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:36,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2132028275, now seen corresponding path program 3 times [2022-11-26 00:18:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:36,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809471789] [2022-11-26 00:18:36,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:36,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:36,330 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:36,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-26 00:18:36,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:36,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:36,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-26 00:18:36,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:36,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:36,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:18:36,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:37,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:37,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:18:37,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:18:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:18:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,378 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:37,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:18:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,428 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:37,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:18:37,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:37,491 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:37,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:18:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:37,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:37,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:37,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809471789] [2022-11-26 00:18:37,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809471789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:37,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:37,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:18:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226187947] [2022-11-26 00:18:37,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:37,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:18:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:18:37,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:18:37,555 INFO L87 Difference]: Start difference. First operand 9737 states and 20593 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:44,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:44,246 INFO L93 Difference]: Finished difference Result 12150 states and 25488 transitions. [2022-11-26 00:18:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:18:44,247 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:44,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:44,262 INFO L225 Difference]: With dead ends: 12150 [2022-11-26 00:18:44,262 INFO L226 Difference]: Without dead ends: 12150 [2022-11-26 00:18:44,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=313, Invalid=877, Unknown=0, NotChecked=0, Total=1190 [2022-11-26 00:18:44,263 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 640 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:44,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 509 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:18:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2022-11-26 00:18:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 9413. [2022-11-26 00:18:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9413 states, 9370 states have (on average 2.1281750266808963) internal successors, (19941), 9412 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9413 states to 9413 states and 19941 transitions. [2022-11-26 00:18:44,427 INFO L78 Accepts]: Start accepts. Automaton has 9413 states and 19941 transitions. Word has length 31 [2022-11-26 00:18:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:44,427 INFO L495 AbstractCegarLoop]: Abstraction has 9413 states and 19941 transitions. [2022-11-26 00:18:44,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 9413 states and 19941 transitions. [2022-11-26 00:18:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:44,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:44,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:44,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:44,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:44,631 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:44,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1031727826, now seen corresponding path program 11 times [2022-11-26 00:18:44,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:44,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413134637] [2022-11-26 00:18:44,632 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:18:44,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:44,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:44,633 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:44,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-26 00:18:44,872 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:18:44,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:44,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:18:44,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:44,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:44,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:44,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:44,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:18:44,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:45,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:18:45,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:18:45,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:18:45,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:18:45,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:18:45,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:18:45,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:18:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:18:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:45,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:45,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:45,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:18:46,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:46,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:46,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:46,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:46,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:46,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:46,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413134637] [2022-11-26 00:18:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413134637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:46,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:46,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:18:46,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874241025] [2022-11-26 00:18:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:18:46,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:18:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:18:46,079 INFO L87 Difference]: Start difference. First operand 9413 states and 19941 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:51,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:51,471 INFO L93 Difference]: Finished difference Result 12366 states and 25977 transitions. [2022-11-26 00:18:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:18:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:51,489 INFO L225 Difference]: With dead ends: 12366 [2022-11-26 00:18:51,489 INFO L226 Difference]: Without dead ends: 12366 [2022-11-26 00:18:51,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:18:51,490 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 301 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:51,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 346 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:18:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12366 states. [2022-11-26 00:18:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12366 to 9459. [2022-11-26 00:18:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9459 states, 9416 states have (on average 2.1276550552251488) internal successors, (20034), 9458 states have internal predecessors, (20034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9459 states to 9459 states and 20034 transitions. [2022-11-26 00:18:51,612 INFO L78 Accepts]: Start accepts. Automaton has 9459 states and 20034 transitions. Word has length 31 [2022-11-26 00:18:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:51,612 INFO L495 AbstractCegarLoop]: Abstraction has 9459 states and 20034 transitions. [2022-11-26 00:18:51,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9459 states and 20034 transitions. [2022-11-26 00:18:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:51,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:51,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:51,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:51,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:51,815 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1401184766, now seen corresponding path program 12 times [2022-11-26 00:18:51,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:51,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011655260] [2022-11-26 00:18:51,816 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:18:51,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:51,817 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:51,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-26 00:18:52,038 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:18:52,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:52,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:18:52,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:52,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:18:52,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:52,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:18:52,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:18:52,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:18:52,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:18:52,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:18:52,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:18:52,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:18:52,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:18:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:18:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:52,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:18:52,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:18:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:53,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:53,025 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:18:53,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:18:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:53,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:53,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:53,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011655260] [2022-11-26 00:18:53,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011655260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:53,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:53,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:18:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309046323] [2022-11-26 00:18:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:53,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:18:53,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:18:53,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:18:53,080 INFO L87 Difference]: Start difference. First operand 9459 states and 20034 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:59,029 INFO L93 Difference]: Finished difference Result 12425 states and 26096 transitions. [2022-11-26 00:18:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:18:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:18:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:59,047 INFO L225 Difference]: With dead ends: 12425 [2022-11-26 00:18:59,047 INFO L226 Difference]: Without dead ends: 12425 [2022-11-26 00:18:59,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:18:59,048 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 351 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:59,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 355 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:18:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2022-11-26 00:18:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 9472. [2022-11-26 00:18:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9472 states, 9429 states have (on average 2.127585109767738) internal successors, (20061), 9471 states have internal predecessors, (20061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9472 states to 9472 states and 20061 transitions. [2022-11-26 00:18:59,176 INFO L78 Accepts]: Start accepts. Automaton has 9472 states and 20061 transitions. Word has length 31 [2022-11-26 00:18:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:59,176 INFO L495 AbstractCegarLoop]: Abstraction has 9472 states and 20061 transitions. [2022-11-26 00:18:59,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9472 states and 20061 transitions. [2022-11-26 00:18:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:18:59,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:59,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:59,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:59,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,379 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:18:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:59,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1721300282, now seen corresponding path program 13 times [2022-11-26 00:18:59,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:59,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526090575] [2022-11-26 00:18:59,380 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:18:59,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:59,381 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:59,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-26 00:18:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:59,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:18:59,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:59,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:18:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:59,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:18:59,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:18:59,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:18:59,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:18:59,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:00,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:19:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:00,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:00,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:00,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:00,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:00,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:00,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:00,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:00,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:00,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:00,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:00,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:00,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:00,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:00,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526090575] [2022-11-26 00:19:00,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526090575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:00,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:00,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79543464] [2022-11-26 00:19:00,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:00,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:00,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:00,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:00,656 INFO L87 Difference]: Start difference. First operand 9472 states and 20061 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:06,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:06,994 INFO L93 Difference]: Finished difference Result 12479 states and 26204 transitions. [2022-11-26 00:19:06,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:19:06,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:07,057 INFO L225 Difference]: With dead ends: 12479 [2022-11-26 00:19:07,057 INFO L226 Difference]: Without dead ends: 12479 [2022-11-26 00:19:07,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:19:07,058 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 353 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:07,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 355 Invalid, 2337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:19:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2022-11-26 00:19:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 9485. [2022-11-26 00:19:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9485 states, 9442 states have (on average 2.1275153569159078) internal successors, (20088), 9484 states have internal predecessors, (20088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9485 states to 9485 states and 20088 transitions. [2022-11-26 00:19:07,183 INFO L78 Accepts]: Start accepts. Automaton has 9485 states and 20088 transitions. Word has length 31 [2022-11-26 00:19:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:07,183 INFO L495 AbstractCegarLoop]: Abstraction has 9485 states and 20088 transitions. [2022-11-26 00:19:07,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:07,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9485 states and 20088 transitions. [2022-11-26 00:19:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:07,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:07,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:07,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:07,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:07,387 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:07,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 31515106, now seen corresponding path program 14 times [2022-11-26 00:19:07,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:07,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244868921] [2022-11-26 00:19:07,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:19:07,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:07,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:07,389 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:07,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-26 00:19:07,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:19:07,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:07,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:19:07,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:07,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:19:07,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:07,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:07,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:19:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:19:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:19:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:19:07,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:07,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:19:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:19:08,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:19:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:19:08,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:19:08,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:08,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:08,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:08,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:08,542 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:08,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:08,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:08,599 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:08,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244868921] [2022-11-26 00:19:08,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244868921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:08,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:08,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:08,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034382841] [2022-11-26 00:19:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:08,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:08,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:08,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:08,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:08,601 INFO L87 Difference]: Start difference. First operand 9485 states and 20088 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:16,189 INFO L93 Difference]: Finished difference Result 12605 states and 26456 transitions. [2022-11-26 00:19:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:19:16,190 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:16,209 INFO L225 Difference]: With dead ends: 12605 [2022-11-26 00:19:16,209 INFO L226 Difference]: Without dead ends: 12605 [2022-11-26 00:19:16,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=235, Invalid=521, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:19:16,209 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 373 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:16,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 398 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:19:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12605 states. [2022-11-26 00:19:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12605 to 9491. [2022-11-26 00:19:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9491 states, 9448 states have (on average 2.1275402201524134) internal successors, (20101), 9490 states have internal predecessors, (20101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9491 states to 9491 states and 20101 transitions. [2022-11-26 00:19:16,339 INFO L78 Accepts]: Start accepts. Automaton has 9491 states and 20101 transitions. Word has length 31 [2022-11-26 00:19:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:16,339 INFO L495 AbstractCegarLoop]: Abstraction has 9491 states and 20101 transitions. [2022-11-26 00:19:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 9491 states and 20101 transitions. [2022-11-26 00:19:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:16,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:16,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:16,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:16,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:16,543 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:16,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1017050128, now seen corresponding path program 15 times [2022-11-26 00:19:16,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:16,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182593750] [2022-11-26 00:19:16,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:19:16,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:16,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:16,544 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:16,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-26 00:19:16,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:19:16,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:16,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:19:16,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:16,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:16,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:16,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:19:16,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:16,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:17,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:17,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:19:17,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:17,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:17,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:17,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:17,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:17,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:17,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:17,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:18,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,022 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:18,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:18,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:18,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:18,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182593750] [2022-11-26 00:19:18,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182593750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:18,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:18,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565725096] [2022-11-26 00:19:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:18,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:18,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:18,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:18,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:18,082 INFO L87 Difference]: Start difference. First operand 9491 states and 20101 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:24,089 INFO L93 Difference]: Finished difference Result 12433 states and 26115 transitions. [2022-11-26 00:19:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:19:24,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:24,108 INFO L225 Difference]: With dead ends: 12433 [2022-11-26 00:19:24,108 INFO L226 Difference]: Without dead ends: 12433 [2022-11-26 00:19:24,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:19:24,108 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 324 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:24,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 346 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:19:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2022-11-26 00:19:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 9502. [2022-11-26 00:19:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9502 states, 9459 states have (on average 2.1273919018923775) internal successors, (20123), 9501 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:24,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9502 states to 9502 states and 20123 transitions. [2022-11-26 00:19:24,269 INFO L78 Accepts]: Start accepts. Automaton has 9502 states and 20123 transitions. Word has length 31 [2022-11-26 00:19:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:24,270 INFO L495 AbstractCegarLoop]: Abstraction has 9502 states and 20123 transitions. [2022-11-26 00:19:24,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 9502 states and 20123 transitions. [2022-11-26 00:19:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:24,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:24,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:24,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:24,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:24,473 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:24,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 845004576, now seen corresponding path program 16 times [2022-11-26 00:19:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:24,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861486242] [2022-11-26 00:19:24,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:19:24,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:24,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:24,475 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:24,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-26 00:19:24,713 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:19:24,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:24,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:19:24,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:24,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:24,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:24,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:19:24,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:24,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:24,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:24,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:25,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:25,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:25,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:25,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:25,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:25,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:25,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:25,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:25,714 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:25,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:25,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:25,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:25,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861486242] [2022-11-26 00:19:25,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861486242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:25,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:25,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:25,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555191051] [2022-11-26 00:19:25,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:25,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:25,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:25,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:25,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:25,770 INFO L87 Difference]: Start difference. First operand 9502 states and 20123 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:31,374 INFO L93 Difference]: Finished difference Result 12492 states and 26234 transitions. [2022-11-26 00:19:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:19:31,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:31,392 INFO L225 Difference]: With dead ends: 12492 [2022-11-26 00:19:31,392 INFO L226 Difference]: Without dead ends: 12492 [2022-11-26 00:19:31,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:19:31,393 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 343 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:31,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 352 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:19:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-11-26 00:19:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 9491. [2022-11-26 00:19:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9491 states, 9448 states have (on average 2.1275402201524134) internal successors, (20101), 9490 states have internal predecessors, (20101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9491 states to 9491 states and 20101 transitions. [2022-11-26 00:19:31,589 INFO L78 Accepts]: Start accepts. Automaton has 9491 states and 20101 transitions. Word has length 31 [2022-11-26 00:19:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:31,589 INFO L495 AbstractCegarLoop]: Abstraction has 9491 states and 20101 transitions. [2022-11-26 00:19:31,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 9491 states and 20101 transitions. [2022-11-26 00:19:31,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:31,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:31,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:31,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:31,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:31,807 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash 524889060, now seen corresponding path program 17 times [2022-11-26 00:19:31,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:31,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632846814] [2022-11-26 00:19:31,808 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:19:31,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:31,809 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:31,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-26 00:19:32,050 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:19:32,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:32,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:19:32,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:32,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:19:32,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:32,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:32,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:32,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:19:32,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:19:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:32,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:32,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:32,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:19:32,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:19:32,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:32,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:32,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:32,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:32,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:33,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:33,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:33,091 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:33,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:33,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:33,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:33,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632846814] [2022-11-26 00:19:33,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632846814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:33,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:33,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800421671] [2022-11-26 00:19:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:33,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:33,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:33,160 INFO L87 Difference]: Start difference. First operand 9491 states and 20101 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:40,205 INFO L93 Difference]: Finished difference Result 12598 states and 26446 transitions. [2022-11-26 00:19:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:19:40,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:40,223 INFO L225 Difference]: With dead ends: 12598 [2022-11-26 00:19:40,223 INFO L226 Difference]: Without dead ends: 12598 [2022-11-26 00:19:40,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:19:40,224 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 377 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:40,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 349 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:19:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2022-11-26 00:19:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 9473. [2022-11-26 00:19:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9473 states, 9430 states have (on average 2.1277836691410394) internal successors, (20065), 9472 states have internal predecessors, (20065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9473 states to 9473 states and 20065 transitions. [2022-11-26 00:19:40,416 INFO L78 Accepts]: Start accepts. Automaton has 9473 states and 20065 transitions. Word has length 31 [2022-11-26 00:19:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:40,416 INFO L495 AbstractCegarLoop]: Abstraction has 9473 states and 20065 transitions. [2022-11-26 00:19:40,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9473 states and 20065 transitions. [2022-11-26 00:19:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:40,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:40,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:40,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:40,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:40,623 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:40,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1603248526, now seen corresponding path program 18 times [2022-11-26 00:19:40,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:40,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183259556] [2022-11-26 00:19:40,624 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:19:40,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:40,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:40,625 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:40,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-26 00:19:40,913 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:19:40,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:40,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:19:40,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:40,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:19:40,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:41,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:41,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:41,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:41,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:19:41,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:41,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:41,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:41,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:19:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:41,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:42,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:19:42,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:42,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:42,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:42,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:42,079 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:42,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:42,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:42,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:42,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183259556] [2022-11-26 00:19:42,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183259556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:42,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:42,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:42,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493684260] [2022-11-26 00:19:42,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:42,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:42,140 INFO L87 Difference]: Start difference. First operand 9473 states and 20065 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:48,096 INFO L93 Difference]: Finished difference Result 12395 states and 26039 transitions. [2022-11-26 00:19:48,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:19:48,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:48,113 INFO L225 Difference]: With dead ends: 12395 [2022-11-26 00:19:48,113 INFO L226 Difference]: Without dead ends: 12395 [2022-11-26 00:19:48,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:19:48,114 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 292 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:48,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 388 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-26 00:19:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2022-11-26 00:19:48,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 9462. [2022-11-26 00:19:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9462 states, 9419 states have (on average 2.127932901581909) internal successors, (20043), 9461 states have internal predecessors, (20043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9462 states to 9462 states and 20043 transitions. [2022-11-26 00:19:48,239 INFO L78 Accepts]: Start accepts. Automaton has 9462 states and 20043 transitions. Word has length 31 [2022-11-26 00:19:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:48,239 INFO L495 AbstractCegarLoop]: Abstraction has 9462 states and 20043 transitions. [2022-11-26 00:19:48,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9462 states and 20043 transitions. [2022-11-26 00:19:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:48,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:48,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:48,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:48,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:48,445 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 258806178, now seen corresponding path program 19 times [2022-11-26 00:19:48,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:48,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628131404] [2022-11-26 00:19:48,445 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:19:48,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:48,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:48,446 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:48,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-26 00:19:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:48,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:19:48,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:48,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:48,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:19:48,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:48,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:19:48,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:19:48,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:19:49,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:49,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:49,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:49,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:19:49,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:19:49,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:19:49,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:19:49,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:49,699 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:49,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:19:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:49,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:49,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:49,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628131404] [2022-11-26 00:19:49,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628131404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:49,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:49,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:19:49,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563716787] [2022-11-26 00:19:49,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:49,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:49,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:49,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:49,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:49,753 INFO L87 Difference]: Start difference. First operand 9462 states and 20043 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:55,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:55,122 INFO L93 Difference]: Finished difference Result 12439 states and 26128 transitions. [2022-11-26 00:19:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:19:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:19:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:55,140 INFO L225 Difference]: With dead ends: 12439 [2022-11-26 00:19:55,140 INFO L226 Difference]: Without dead ends: 12439 [2022-11-26 00:19:55,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:19:55,141 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 342 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:55,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 345 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:19:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12439 states. [2022-11-26 00:19:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12439 to 9437. [2022-11-26 00:19:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9437 states, 9394 states have (on average 2.128273365978284) internal successors, (19993), 9436 states have internal predecessors, (19993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9437 states to 9437 states and 19993 transitions. [2022-11-26 00:19:55,269 INFO L78 Accepts]: Start accepts. Automaton has 9437 states and 19993 transitions. Word has length 31 [2022-11-26 00:19:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:55,269 INFO L495 AbstractCegarLoop]: Abstraction has 9437 states and 19993 transitions. [2022-11-26 00:19:55,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9437 states and 19993 transitions. [2022-11-26 00:19:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:55,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:55,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:55,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:55,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:55,472 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:19:55,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:55,473 INFO L85 PathProgramCache]: Analyzing trace with hash 126452078, now seen corresponding path program 4 times [2022-11-26 00:19:55,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:19:55,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179046231] [2022-11-26 00:19:55,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:19:55,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:55,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:19:55,474 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:19:55,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-26 00:19:55,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:19:55,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:55,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:19:55,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:55,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:55,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:19:55,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:55,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:19:55,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:19:56,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:19:56,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:19:56,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:19:56,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:19:56,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:19:56,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:19:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:56,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:56,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:56,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:56,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:56,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:19:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:56,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:56,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:19:56,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179046231] [2022-11-26 00:19:56,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179046231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:56,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:56,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:19:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501755819] [2022-11-26 00:19:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:56,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:19:56,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:19:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:19:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:19:56,828 INFO L87 Difference]: Start difference. First operand 9437 states and 19993 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:03,938 INFO L93 Difference]: Finished difference Result 13089 states and 27356 transitions. [2022-11-26 00:20:03,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:20:03,939 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:03,956 INFO L225 Difference]: With dead ends: 13089 [2022-11-26 00:20:03,956 INFO L226 Difference]: Without dead ends: 13089 [2022-11-26 00:20:03,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:20:03,957 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 665 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:03,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 718 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:20:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13089 states. [2022-11-26 00:20:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13089 to 9820. [2022-11-26 00:20:04,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9777 states have (on average 2.124373529712591) internal successors, (20770), 9819 states have internal predecessors, (20770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 20770 transitions. [2022-11-26 00:20:04,095 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 20770 transitions. Word has length 31 [2022-11-26 00:20:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:04,095 INFO L495 AbstractCegarLoop]: Abstraction has 9820 states and 20770 transitions. [2022-11-26 00:20:04,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 20770 transitions. [2022-11-26 00:20:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:04,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:04,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:04,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-11-26 00:20:04,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:04,300 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1322580147, now seen corresponding path program 4 times [2022-11-26 00:20:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:04,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120022644] [2022-11-26 00:20:04,301 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:20:04,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:04,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:04,302 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:04,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-26 00:20:04,555 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:20:04,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:04,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:20:04,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:04,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:04,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:04,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:20:04,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:05,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:20:05,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:20:05,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:20:05,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:20:05,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,313 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:05,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:20:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:05,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:20:05,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,422 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:05,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:20:05,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:05,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:05,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:05,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120022644] [2022-11-26 00:20:05,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120022644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:05,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:05,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:20:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856094444] [2022-11-26 00:20:05,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:05,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:20:05,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:20:05,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:20:05,485 INFO L87 Difference]: Start difference. First operand 9820 states and 20770 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:11,589 INFO L93 Difference]: Finished difference Result 12782 states and 26729 transitions. [2022-11-26 00:20:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:20:11,590 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:11,607 INFO L225 Difference]: With dead ends: 12782 [2022-11-26 00:20:11,607 INFO L226 Difference]: Without dead ends: 12782 [2022-11-26 00:20:11,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-11-26 00:20:11,608 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 584 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:11,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 744 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:20:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2022-11-26 00:20:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 9966. [2022-11-26 00:20:11,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9966 states, 9923 states have (on average 2.124458329134334) internal successors, (21081), 9965 states have internal predecessors, (21081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9966 states to 9966 states and 21081 transitions. [2022-11-26 00:20:11,751 INFO L78 Accepts]: Start accepts. Automaton has 9966 states and 21081 transitions. Word has length 31 [2022-11-26 00:20:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:11,751 INFO L495 AbstractCegarLoop]: Abstraction has 9966 states and 21081 transitions. [2022-11-26 00:20:11,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:11,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9966 states and 21081 transitions. [2022-11-26 00:20:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:11,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:11,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:11,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:11,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:11,956 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1867680140, now seen corresponding path program 5 times [2022-11-26 00:20:11,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:11,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707311130] [2022-11-26 00:20:11,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:20:11,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:11,957 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:11,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-26 00:20:12,217 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:20:12,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:12,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 00:20:12,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:12,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:12,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:20:12,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:12,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:20:12,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:20:12,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:20:13,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:20:13,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:20:13,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:13,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:13,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:13,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:13,404 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:13,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:20:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:13,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:13,511 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707311130] [2022-11-26 00:20:13,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707311130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:13,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:13,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:20:13,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320891083] [2022-11-26 00:20:13,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:13,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:20:13,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:20:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:20:13,514 INFO L87 Difference]: Start difference. First operand 9966 states and 21081 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:23,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:23,842 INFO L93 Difference]: Finished difference Result 14071 states and 29390 transitions. [2022-11-26 00:20:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:20:23,843 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:23,863 INFO L225 Difference]: With dead ends: 14071 [2022-11-26 00:20:23,863 INFO L226 Difference]: Without dead ends: 14071 [2022-11-26 00:20:23,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:20:23,864 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 558 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:23,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1215 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-26 00:20:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14071 states. [2022-11-26 00:20:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14071 to 11786. [2022-11-26 00:20:24,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11786 states, 11743 states have (on average 2.127565358085668) internal successors, (24984), 11785 states have internal predecessors, (24984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11786 states to 11786 states and 24984 transitions. [2022-11-26 00:20:24,077 INFO L78 Accepts]: Start accepts. Automaton has 11786 states and 24984 transitions. Word has length 31 [2022-11-26 00:20:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:24,078 INFO L495 AbstractCegarLoop]: Abstraction has 11786 states and 24984 transitions. [2022-11-26 00:20:24,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 11786 states and 24984 transitions. [2022-11-26 00:20:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:24,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:24,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:24,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:24,281 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2133175610, now seen corresponding path program 6 times [2022-11-26 00:20:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:24,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269993699] [2022-11-26 00:20:24,282 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:20:24,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:24,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:24,287 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:24,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-26 00:20:24,553 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:20:24,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:24,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:20:24,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:24,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:24,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:20:24,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:25,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:20:25,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:20:25,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:20:25,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:20:25,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:20:25,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:20:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:25,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:25,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:25,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:20:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:25,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:25,716 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:25,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269993699] [2022-11-26 00:20:25,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269993699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:25,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:25,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:20:25,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674070090] [2022-11-26 00:20:25,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:25,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:20:25,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:20:25,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:20:25,718 INFO L87 Difference]: Start difference. First operand 11786 states and 24984 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:33,950 INFO L93 Difference]: Finished difference Result 13743 states and 28942 transitions. [2022-11-26 00:20:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:20:33,951 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:33,971 INFO L225 Difference]: With dead ends: 13743 [2022-11-26 00:20:33,971 INFO L226 Difference]: Without dead ends: 13743 [2022-11-26 00:20:33,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:20:33,972 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 558 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:33,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 726 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-26 00:20:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13743 states. [2022-11-26 00:20:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13743 to 11787. [2022-11-26 00:20:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11744 states have (on average 2.1275544959128063) internal successors, (24986), 11786 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 24986 transitions. [2022-11-26 00:20:34,223 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 24986 transitions. Word has length 31 [2022-11-26 00:20:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:34,223 INFO L495 AbstractCegarLoop]: Abstraction has 11787 states and 24986 transitions. [2022-11-26 00:20:34,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:34,224 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 24986 transitions. [2022-11-26 00:20:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:34,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:34,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:34,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-11-26 00:20:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:34,431 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:34,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:34,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2121499460, now seen corresponding path program 7 times [2022-11-26 00:20:34,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:34,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588685102] [2022-11-26 00:20:34,432 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:20:34,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:34,433 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:34,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-26 00:20:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:34,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 00:20:34,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:34,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:34,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:34,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:34,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:20:34,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:35,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:35,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:20:35,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:20:35,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:20:35,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:20:35,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:20:35,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:35,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:35,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:35,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:35,825 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:35,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:20:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:35,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:35,926 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:35,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588685102] [2022-11-26 00:20:35,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588685102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:35,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:35,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:20:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604123792] [2022-11-26 00:20:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:35,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:20:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:35,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:20:35,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:20:35,927 INFO L87 Difference]: Start difference. First operand 11787 states and 24986 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:48,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:48,100 INFO L93 Difference]: Finished difference Result 13986 states and 29219 transitions. [2022-11-26 00:20:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:20:48,101 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:48,120 INFO L225 Difference]: With dead ends: 13986 [2022-11-26 00:20:48,120 INFO L226 Difference]: Without dead ends: 13986 [2022-11-26 00:20:48,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-11-26 00:20:48,121 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 676 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 4020 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 4070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:48,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 933 Invalid, 4070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4020 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-26 00:20:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-11-26 00:20:48,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 11784. [2022-11-26 00:20:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11784 states, 11741 states have (on average 2.1274167447406525) internal successors, (24978), 11783 states have internal predecessors, (24978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11784 states to 11784 states and 24978 transitions. [2022-11-26 00:20:48,346 INFO L78 Accepts]: Start accepts. Automaton has 11784 states and 24978 transitions. Word has length 31 [2022-11-26 00:20:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:48,346 INFO L495 AbstractCegarLoop]: Abstraction has 11784 states and 24978 transitions. [2022-11-26 00:20:48,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 11784 states and 24978 transitions. [2022-11-26 00:20:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:48,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:48,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:48,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2022-11-26 00:20:48,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:48,549 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash -151120372, now seen corresponding path program 8 times [2022-11-26 00:20:48,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:48,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652032968] [2022-11-26 00:20:48,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:20:48,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:48,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:48,551 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:48,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-26 00:20:48,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:20:48,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:48,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 00:20:48,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:48,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:48,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:48,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:48,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:20:48,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:49,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:20:49,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:20:49,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:20:49,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:20:49,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:20:49,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:49,960 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:49,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:20:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:50,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:50,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652032968] [2022-11-26 00:20:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652032968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:50,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:50,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:20:50,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980168471] [2022-11-26 00:20:50,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:50,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:20:50,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:50,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:20:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:20:50,074 INFO L87 Difference]: Start difference. First operand 11784 states and 24978 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:57,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:57,799 INFO L93 Difference]: Finished difference Result 14086 states and 29411 transitions. [2022-11-26 00:20:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:20:57,800 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:20:57,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:57,820 INFO L225 Difference]: With dead ends: 14086 [2022-11-26 00:20:57,820 INFO L226 Difference]: Without dead ends: 14086 [2022-11-26 00:20:57,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2022-11-26 00:20:57,821 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 545 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:57,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 958 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:20:57,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14086 states. [2022-11-26 00:20:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14086 to 11759. [2022-11-26 00:20:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11759 states, 11716 states have (on average 2.1268350973028336) internal successors, (24918), 11758 states have internal predecessors, (24918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11759 states to 11759 states and 24918 transitions. [2022-11-26 00:20:58,023 INFO L78 Accepts]: Start accepts. Automaton has 11759 states and 24918 transitions. Word has length 31 [2022-11-26 00:20:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:58,023 INFO L495 AbstractCegarLoop]: Abstraction has 11759 states and 24918 transitions. [2022-11-26 00:20:58,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 11759 states and 24918 transitions. [2022-11-26 00:20:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:20:58,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:58,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:58,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:58,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:58,226 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:20:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1944499559, now seen corresponding path program 5 times [2022-11-26 00:20:58,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:20:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149790334] [2022-11-26 00:20:58,227 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:20:58,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:20:58,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:20:58,228 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:20:58,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-26 00:20:58,505 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:20:58,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:58,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-26 00:20:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:58,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:20:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:58,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:20:58,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:20:59,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:20:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:20:59,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:20:59,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:20:59,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:20:59,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:20:59,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:20:59,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:20:59,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:20:59,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:20:59,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:59,690 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:59,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:20:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:20:59,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:59,756 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:20:59,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149790334] [2022-11-26 00:20:59,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149790334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:59,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:20:59,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:20:59,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327753603] [2022-11-26 00:20:59,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:59,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:20:59,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:20:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:20:59,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:20:59,758 INFO L87 Difference]: Start difference. First operand 11759 states and 24918 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:07,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:07,698 INFO L93 Difference]: Finished difference Result 13634 states and 28733 transitions. [2022-11-26 00:21:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:21:07,699 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:07,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:07,717 INFO L225 Difference]: With dead ends: 13634 [2022-11-26 00:21:07,717 INFO L226 Difference]: Without dead ends: 13634 [2022-11-26 00:21:07,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:21:07,718 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 363 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:07,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 569 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:21:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13634 states. [2022-11-26 00:21:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13634 to 11758. [2022-11-26 00:21:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11758 states, 11715 states have (on average 2.1268459240290225) internal successors, (24916), 11757 states have internal predecessors, (24916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11758 states to 11758 states and 24916 transitions. [2022-11-26 00:21:07,887 INFO L78 Accepts]: Start accepts. Automaton has 11758 states and 24916 transitions. Word has length 31 [2022-11-26 00:21:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:07,887 INFO L495 AbstractCegarLoop]: Abstraction has 11758 states and 24916 transitions. [2022-11-26 00:21:07,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11758 states and 24916 transitions. [2022-11-26 00:21:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:07,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:07,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:07,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:08,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:08,090 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:08,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1986511975, now seen corresponding path program 6 times [2022-11-26 00:21:08,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:08,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356609096] [2022-11-26 00:21:08,091 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:21:08,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:08,092 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:08,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-26 00:21:08,376 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:21:08,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:21:08,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-26 00:21:08,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:08,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:08,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:08,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:08,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:08,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:08,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:21:08,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:08,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:21:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:21:09,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:09,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:21:09,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:21:09,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:09,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:09,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:09,542 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:09,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:21:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:09,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:09,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:09,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356609096] [2022-11-26 00:21:09,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356609096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:09,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:09,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:21:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070590737] [2022-11-26 00:21:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:09,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:21:09,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:21:09,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:21:09,600 INFO L87 Difference]: Start difference. First operand 11758 states and 24916 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:18,016 INFO L93 Difference]: Finished difference Result 13651 states and 28767 transitions. [2022-11-26 00:21:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-26 00:21:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:18,034 INFO L225 Difference]: With dead ends: 13651 [2022-11-26 00:21:18,034 INFO L226 Difference]: Without dead ends: 13651 [2022-11-26 00:21:18,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=428, Invalid=978, Unknown=0, NotChecked=0, Total=1406 [2022-11-26 00:21:18,035 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 507 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:18,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 463 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:21:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2022-11-26 00:21:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 11776. [2022-11-26 00:21:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11776 states, 11733 states have (on average 2.1266513253217423) internal successors, (24952), 11775 states have internal predecessors, (24952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11776 states to 11776 states and 24952 transitions. [2022-11-26 00:21:18,196 INFO L78 Accepts]: Start accepts. Automaton has 11776 states and 24952 transitions. Word has length 31 [2022-11-26 00:21:18,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:18,197 INFO L495 AbstractCegarLoop]: Abstraction has 11776 states and 24952 transitions. [2022-11-26 00:21:18,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 11776 states and 24952 transitions. [2022-11-26 00:21:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:18,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:18,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:18,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:18,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:18,399 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:18,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 88021163, now seen corresponding path program 7 times [2022-11-26 00:21:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:18,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868571276] [2022-11-26 00:21:18,400 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:21:18,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:18,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:18,401 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:18,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-26 00:21:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:18,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-26 00:21:18,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:18,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:18,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:18,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:18,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:18,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:19,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:21:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:21:19,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:19,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:21:19,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:21:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:21:19,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:19,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:19,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:19,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:21:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:19,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:19,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:19,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868571276] [2022-11-26 00:21:19,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868571276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:19,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:19,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:21:19,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262023377] [2022-11-26 00:21:19,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:19,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:21:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:19,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:21:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:21:19,903 INFO L87 Difference]: Start difference. First operand 11776 states and 24952 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:27,456 INFO L93 Difference]: Finished difference Result 13714 states and 28893 transitions. [2022-11-26 00:21:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:21:27,457 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:27,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:27,475 INFO L225 Difference]: With dead ends: 13714 [2022-11-26 00:21:27,475 INFO L226 Difference]: Without dead ends: 13714 [2022-11-26 00:21:27,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-26 00:21:27,476 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 470 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:27,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 570 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:21:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13714 states. [2022-11-26 00:21:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13714 to 11798. [2022-11-26 00:21:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11798 states, 11755 states have (on average 2.126414291790727) internal successors, (24996), 11797 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11798 states to 11798 states and 24996 transitions. [2022-11-26 00:21:27,647 INFO L78 Accepts]: Start accepts. Automaton has 11798 states and 24996 transitions. Word has length 31 [2022-11-26 00:21:27,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:27,647 INFO L495 AbstractCegarLoop]: Abstraction has 11798 states and 24996 transitions. [2022-11-26 00:21:27,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 11798 states and 24996 transitions. [2022-11-26 00:21:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:27,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:27,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:27,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:27,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:27,850 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:27,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash 921448995, now seen corresponding path program 8 times [2022-11-26 00:21:27,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:27,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343425944] [2022-11-26 00:21:27,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:21:27,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:27,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:27,852 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-26 00:21:28,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:21:28,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:21:28,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-26 00:21:28,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:28,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:28,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:21:28,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:28,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:21:28,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:21:28,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:21:28,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:28,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:21:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:29,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:29,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:29,235 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:29,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:21:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:29,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:29,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:29,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343425944] [2022-11-26 00:21:29,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343425944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:29,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:29,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:21:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568642007] [2022-11-26 00:21:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:29,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:21:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:21:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:21:29,301 INFO L87 Difference]: Start difference. First operand 11798 states and 24996 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:35,968 INFO L93 Difference]: Finished difference Result 13711 states and 28884 transitions. [2022-11-26 00:21:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:21:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:35,989 INFO L225 Difference]: With dead ends: 13711 [2022-11-26 00:21:35,989 INFO L226 Difference]: Without dead ends: 13711 [2022-11-26 00:21:35,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2022-11-26 00:21:35,990 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 491 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:35,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 569 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:21:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13711 states. [2022-11-26 00:21:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13711 to 11769. [2022-11-26 00:21:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11769 states, 11726 states have (on average 2.126471089885724) internal successors, (24935), 11768 states have internal predecessors, (24935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:36,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11769 states to 11769 states and 24935 transitions. [2022-11-26 00:21:36,192 INFO L78 Accepts]: Start accepts. Automaton has 11769 states and 24935 transitions. Word has length 31 [2022-11-26 00:21:36,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:36,192 INFO L495 AbstractCegarLoop]: Abstraction has 11769 states and 24935 transitions. [2022-11-26 00:21:36,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 11769 states and 24935 transitions. [2022-11-26 00:21:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:36,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:36,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:36,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:36,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:36,396 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2009918228, now seen corresponding path program 9 times [2022-11-26 00:21:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:36,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821752891] [2022-11-26 00:21:36,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:21:36,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:36,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:36,397 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:36,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-26 00:21:36,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:21:36,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:21:36,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:21:36,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:36,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:36,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:36,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:36,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:37,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:37,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:21:37,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:21:37,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:21:37,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:21:37,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:21:37,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:37,684 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:37,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:21:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:37,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:37,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821752891] [2022-11-26 00:21:37,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821752891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:37,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:37,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:21:37,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283143556] [2022-11-26 00:21:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:37,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:21:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:21:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:21:37,768 INFO L87 Difference]: Start difference. First operand 11769 states and 24935 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:46,307 INFO L93 Difference]: Finished difference Result 14117 states and 29683 transitions. [2022-11-26 00:21:46,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:21:46,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:46,327 INFO L225 Difference]: With dead ends: 14117 [2022-11-26 00:21:46,327 INFO L226 Difference]: Without dead ends: 14117 [2022-11-26 00:21:46,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:21:46,328 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 537 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:46,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 512 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-26 00:21:46,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14117 states. [2022-11-26 00:21:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14117 to 12534. [2022-11-26 00:21:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12534 states, 12491 states have (on average 2.1219277880073655) internal successors, (26505), 12533 states have internal predecessors, (26505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12534 states to 12534 states and 26505 transitions. [2022-11-26 00:21:46,526 INFO L78 Accepts]: Start accepts. Automaton has 12534 states and 26505 transitions. Word has length 31 [2022-11-26 00:21:46,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:46,526 INFO L495 AbstractCegarLoop]: Abstraction has 12534 states and 26505 transitions. [2022-11-26 00:21:46,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 12534 states and 26505 transitions. [2022-11-26 00:21:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:46,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:46,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:46,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2022-11-26 00:21:46,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:46,729 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1088920999, now seen corresponding path program 9 times [2022-11-26 00:21:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:46,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867381471] [2022-11-26 00:21:46,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:21:46,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:46,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:46,731 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:46,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-26 00:21:47,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:21:47,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:21:47,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-26 00:21:47,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:47,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:47,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:47,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:21:47,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:21:47,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:21:47,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:21:47,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,797 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:47,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:21:47,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:47,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:21:47,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:47,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:47,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:21:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:47,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:47,958 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:47,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867381471] [2022-11-26 00:21:47,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867381471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:47,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:47,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:21:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186510902] [2022-11-26 00:21:47,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:47,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:21:47,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:21:47,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:21:47,960 INFO L87 Difference]: Start difference. First operand 12534 states and 26505 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:54,383 INFO L93 Difference]: Finished difference Result 14128 states and 29699 transitions. [2022-11-26 00:21:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:21:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:21:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:54,404 INFO L225 Difference]: With dead ends: 14128 [2022-11-26 00:21:54,404 INFO L226 Difference]: Without dead ends: 14128 [2022-11-26 00:21:54,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:21:54,405 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 581 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:54,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 475 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:21:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14128 states. [2022-11-26 00:21:54,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14128 to 12622. [2022-11-26 00:21:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12579 states have (on average 2.121154304793704) internal successors, (26682), 12621 states have internal predecessors, (26682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 26682 transitions. [2022-11-26 00:21:54,642 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 26682 transitions. Word has length 31 [2022-11-26 00:21:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:54,642 INFO L495 AbstractCegarLoop]: Abstraction has 12622 states and 26682 transitions. [2022-11-26 00:21:54,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 26682 transitions. [2022-11-26 00:21:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:21:54,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:54,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:54,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-26 00:21:54,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:54,847 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:21:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2074835102, now seen corresponding path program 20 times [2022-11-26 00:21:54,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:21:54,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505446326] [2022-11-26 00:21:54,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:21:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:21:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:21:54,849 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:21:54,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-26 00:21:55,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:21:55,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:21:55,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:21:55,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:21:55,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:21:55,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:21:55,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:21:55,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:21:55,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:21:55,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:21:55,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:21:55,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:21:55,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:55,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:55,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:21:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:55,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:21:56,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:21:56,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:56,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:56,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:21:56,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:56,358 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:21:56,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:21:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:56,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:21:56,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:21:56,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505446326] [2022-11-26 00:21:56,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505446326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:56,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:56,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:21:56,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193914337] [2022-11-26 00:21:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:56,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:21:56,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:21:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:21:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:21:56,411 INFO L87 Difference]: Start difference. First operand 12622 states and 26682 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:02,704 INFO L93 Difference]: Finished difference Result 15927 states and 33403 transitions. [2022-11-26 00:22:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:22:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:02,727 INFO L225 Difference]: With dead ends: 15927 [2022-11-26 00:22:02,727 INFO L226 Difference]: Without dead ends: 15927 [2022-11-26 00:22:02,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:22:02,728 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 302 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:02,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 411 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:22:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15927 states. [2022-11-26 00:22:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15927 to 13521. [2022-11-26 00:22:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13478 states have (on average 2.118192610179552) internal successors, (28549), 13520 states have internal predecessors, (28549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 28549 transitions. [2022-11-26 00:22:02,957 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 28549 transitions. Word has length 31 [2022-11-26 00:22:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:02,957 INFO L495 AbstractCegarLoop]: Abstraction has 13521 states and 28549 transitions. [2022-11-26 00:22:02,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 28549 transitions. [2022-11-26 00:22:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:02,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:02,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:02,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:03,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:03,161 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash -358077490, now seen corresponding path program 21 times [2022-11-26 00:22:03,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:03,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334900551] [2022-11-26 00:22:03,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:22:03,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:03,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:03,163 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:03,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-26 00:22:03,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:22:03,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:03,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:22:03,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:03,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:03,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:22:03,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:03,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:22:03,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:03,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:03,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:03,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:03,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:03,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:03,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:03,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:04,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:04,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:04,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:04,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:04,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:04,538 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:04,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:04,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:04,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:04,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334900551] [2022-11-26 00:22:04,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334900551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:04,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:04,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:22:04,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501900432] [2022-11-26 00:22:04,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:04,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:22:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:22:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:22:04,594 INFO L87 Difference]: Start difference. First operand 13521 states and 28549 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:11,877 INFO L93 Difference]: Finished difference Result 16401 states and 34374 transitions. [2022-11-26 00:22:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:22:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:11,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:11,910 INFO L225 Difference]: With dead ends: 16401 [2022-11-26 00:22:11,910 INFO L226 Difference]: Without dead ends: 16401 [2022-11-26 00:22:11,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:22:11,911 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 387 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:11,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 414 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-26 00:22:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16401 states. [2022-11-26 00:22:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16401 to 13557. [2022-11-26 00:22:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 13514 states have (on average 2.1180257510729614) internal successors, (28623), 13556 states have internal predecessors, (28623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 28623 transitions. [2022-11-26 00:22:12,215 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 28623 transitions. Word has length 31 [2022-11-26 00:22:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:12,215 INFO L495 AbstractCegarLoop]: Abstraction has 13557 states and 28623 transitions. [2022-11-26 00:22:12,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:12,216 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 28623 transitions. [2022-11-26 00:22:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:12,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:12,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:12,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:12,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:12,420 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -678193006, now seen corresponding path program 22 times [2022-11-26 00:22:12,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:12,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271771271] [2022-11-26 00:22:12,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:22:12,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:12,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:12,422 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:12,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-26 00:22:12,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:22:12,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:12,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:22:12,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:12,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:12,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:12,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:12,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:22:12,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:12,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:22:12,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:13,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:13,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:22:13,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:22:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:22:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:22:13,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:22:13,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:22:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:22:13,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:22:13,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:13,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:13,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:13,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:13,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:13,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:13,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:13,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:13,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:13,878 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:13,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271771271] [2022-11-26 00:22:13,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271771271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:13,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:13,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:22:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862628027] [2022-11-26 00:22:13,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:13,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:22:13,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:13,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:22:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:22:13,880 INFO L87 Difference]: Start difference. First operand 13557 states and 28623 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:20,696 INFO L93 Difference]: Finished difference Result 16538 states and 34648 transitions. [2022-11-26 00:22:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:22:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:20,721 INFO L225 Difference]: With dead ends: 16538 [2022-11-26 00:22:20,721 INFO L226 Difference]: Without dead ends: 16538 [2022-11-26 00:22:20,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=225, Invalid=587, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:22:20,722 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 465 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:20,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 369 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:22:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16538 states. [2022-11-26 00:22:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16538 to 13598. [2022-11-26 00:22:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13598 states, 13555 states have (on average 2.117963850977499) internal successors, (28709), 13597 states have internal predecessors, (28709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13598 states to 13598 states and 28709 transitions. [2022-11-26 00:22:20,967 INFO L78 Accepts]: Start accepts. Automaton has 13598 states and 28709 transitions. Word has length 31 [2022-11-26 00:22:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:20,967 INFO L495 AbstractCegarLoop]: Abstraction has 13598 states and 28709 transitions. [2022-11-26 00:22:20,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 13598 states and 28709 transitions. [2022-11-26 00:22:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:20,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:20,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:20,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:21,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:21,171 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:21,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1074622382, now seen corresponding path program 23 times [2022-11-26 00:22:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:21,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183449481] [2022-11-26 00:22:21,171 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:22:21,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:21,172 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:21,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-26 00:22:21,499 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:22:21,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:21,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:22:21,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:21,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:21,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:22:21,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:21,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:22:21,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:21,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:22:21,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:22:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:22:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:22:21,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:22:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:21,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:22:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:22:22,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:22:22,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:22,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:22,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:22,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:22,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:22,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:22,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:22,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:22,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:22,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:22,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:22,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183449481] [2022-11-26 00:22:22,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183449481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:22,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:22,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:22:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993974484] [2022-11-26 00:22:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:22,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:22:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:22,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:22:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:22:22,595 INFO L87 Difference]: Start difference. First operand 13598 states and 28709 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:30,430 INFO L93 Difference]: Finished difference Result 16680 states and 34932 transitions. [2022-11-26 00:22:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-26 00:22:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:30,459 INFO L225 Difference]: With dead ends: 16680 [2022-11-26 00:22:30,459 INFO L226 Difference]: Without dead ends: 16680 [2022-11-26 00:22:30,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:22:30,460 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 451 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:30,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 376 Invalid, 3172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:22:30,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16680 states. [2022-11-26 00:22:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16680 to 13639. [2022-11-26 00:22:30,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13639 states, 13596 states have (on average 2.117902324213004) internal successors, (28795), 13638 states have internal predecessors, (28795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13639 states to 13639 states and 28795 transitions. [2022-11-26 00:22:30,774 INFO L78 Accepts]: Start accepts. Automaton has 13639 states and 28795 transitions. Word has length 31 [2022-11-26 00:22:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:30,775 INFO L495 AbstractCegarLoop]: Abstraction has 13639 states and 28795 transitions. [2022-11-26 00:22:30,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13639 states and 28795 transitions. [2022-11-26 00:22:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:30,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:30,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:30,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-26 00:22:30,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:30,980 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash 450101928, now seen corresponding path program 24 times [2022-11-26 00:22:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:30,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398938268] [2022-11-26 00:22:30,982 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:22:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:30,983 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:30,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-26 00:22:31,312 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:22:31,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:31,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 00:22:31,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:31,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:31,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:31,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:31,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:31,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:31,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:31,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:31,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:31,977 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:31,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:32,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:32,031 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:32,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398938268] [2022-11-26 00:22:32,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398938268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:32,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:32,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:22:32,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136339950] [2022-11-26 00:22:32,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:32,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:22:32,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:32,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:22:32,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:22:32,034 INFO L87 Difference]: Start difference. First operand 13639 states and 28795 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:37,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:37,091 INFO L93 Difference]: Finished difference Result 20282 states and 42285 transitions. [2022-11-26 00:22:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:22:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:37,121 INFO L225 Difference]: With dead ends: 20282 [2022-11-26 00:22:37,122 INFO L226 Difference]: Without dead ends: 20282 [2022-11-26 00:22:37,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:22:37,122 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 740 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:37,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 402 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-26 00:22:37,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20282 states. [2022-11-26 00:22:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20282 to 12790. [2022-11-26 00:22:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12790 states, 12747 states have (on average 2.1161057503726366) internal successors, (26974), 12789 states have internal predecessors, (26974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12790 states to 12790 states and 26974 transitions. [2022-11-26 00:22:37,412 INFO L78 Accepts]: Start accepts. Automaton has 12790 states and 26974 transitions. Word has length 31 [2022-11-26 00:22:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:37,412 INFO L495 AbstractCegarLoop]: Abstraction has 12790 states and 26974 transitions. [2022-11-26 00:22:37,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12790 states and 26974 transitions. [2022-11-26 00:22:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:37,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:37,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:37,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:37,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:37,616 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:37,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1221454637, now seen corresponding path program 7 times [2022-11-26 00:22:37,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:37,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223231678] [2022-11-26 00:22:37,617 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:22:37,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:37,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:37,618 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:37,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-26 00:22:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:37,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-26 00:22:37,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:38,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:22:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:22:38,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-26 00:22:38,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-26 00:22:38,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:38,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:38,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-26 00:22:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:38,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:38,528 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:38,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223231678] [2022-11-26 00:22:38,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223231678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:38,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:38,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:22:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431979711] [2022-11-26 00:22:38,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:38,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:22:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:22:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:22:38,530 INFO L87 Difference]: Start difference. First operand 12790 states and 26974 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:43,467 INFO L93 Difference]: Finished difference Result 16918 states and 35380 transitions. [2022-11-26 00:22:43,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:22:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:43,490 INFO L225 Difference]: With dead ends: 16918 [2022-11-26 00:22:43,490 INFO L226 Difference]: Without dead ends: 16918 [2022-11-26 00:22:43,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:22:43,490 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 644 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:43,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 381 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 00:22:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2022-11-26 00:22:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 10969. [2022-11-26 00:22:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10969 states, 10926 states have (on average 2.104338275672707) internal successors, (22992), 10968 states have internal predecessors, (22992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10969 states to 10969 states and 22992 transitions. [2022-11-26 00:22:43,672 INFO L78 Accepts]: Start accepts. Automaton has 10969 states and 22992 transitions. Word has length 31 [2022-11-26 00:22:43,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:43,673 INFO L495 AbstractCegarLoop]: Abstraction has 10969 states and 22992 transitions. [2022-11-26 00:22:43,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 10969 states and 22992 transitions. [2022-11-26 00:22:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:43,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:43,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:43,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:43,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:43,876 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:43,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:43,877 INFO L85 PathProgramCache]: Analyzing trace with hash -335584052, now seen corresponding path program 25 times [2022-11-26 00:22:43,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:43,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340614547] [2022-11-26 00:22:43,877 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:22:43,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:43,878 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:43,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-26 00:22:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:22:44,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:22:44,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:44,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:22:44,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:44,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:44,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:22:44,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:44,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:44,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:44,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:44,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:44,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:44,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:44,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:22:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:22:45,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:22:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:45,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:45,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:22:45,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:45,415 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:45,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:45,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:45,473 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340614547] [2022-11-26 00:22:45,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340614547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:45,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:45,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:22:45,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366111775] [2022-11-26 00:22:45,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:45,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:22:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:22:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:22:45,474 INFO L87 Difference]: Start difference. First operand 10969 states and 22992 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:51,927 INFO L93 Difference]: Finished difference Result 13598 states and 28379 transitions. [2022-11-26 00:22:51,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:22:51,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:51,946 INFO L225 Difference]: With dead ends: 13598 [2022-11-26 00:22:51,946 INFO L226 Difference]: Without dead ends: 13598 [2022-11-26 00:22:51,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:22:51,947 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 256 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:51,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 376 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2003 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:22:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13598 states. [2022-11-26 00:22:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13598 to 11021. [2022-11-26 00:22:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11021 states, 10978 states have (on average 2.103844051739843) internal successors, (23096), 11020 states have internal predecessors, (23096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11021 states to 11021 states and 23096 transitions. [2022-11-26 00:22:52,096 INFO L78 Accepts]: Start accepts. Automaton has 11021 states and 23096 transitions. Word has length 31 [2022-11-26 00:22:52,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:52,096 INFO L495 AbstractCegarLoop]: Abstraction has 11021 states and 23096 transitions. [2022-11-26 00:22:52,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11021 states and 23096 transitions. [2022-11-26 00:22:52,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:52,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:52,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:52,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:52,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:52,299 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1526470652, now seen corresponding path program 26 times [2022-11-26 00:22:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:52,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598751299] [2022-11-26 00:22:52,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:22:52,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:52,302 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:52,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-26 00:22:52,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:22:52,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:52,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:22:52,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:52,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:52,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:52,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:52,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:22:52,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:52,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:52,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:22:52,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:22:52,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:22:53,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:53,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:53,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:53,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:22:53,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:22:53,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:22:53,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:22:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:53,642 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:53,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:22:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:22:53,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:22:53,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:22:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598751299] [2022-11-26 00:22:53,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598751299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:22:53,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:22:53,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:22:53,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345539753] [2022-11-26 00:22:53,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:22:53,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:22:53,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:22:53,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:22:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:22:53,695 INFO L87 Difference]: Start difference. First operand 11021 states and 23096 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:22:58,946 INFO L93 Difference]: Finished difference Result 13657 states and 28498 transitions. [2022-11-26 00:22:58,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:22:58,947 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:22:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:22:58,966 INFO L225 Difference]: With dead ends: 13657 [2022-11-26 00:22:58,966 INFO L226 Difference]: Without dead ends: 13657 [2022-11-26 00:22:58,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:22:58,966 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 343 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:22:58,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 333 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-26 00:22:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13657 states. [2022-11-26 00:22:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13657 to 11028. [2022-11-26 00:22:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11028 states, 10985 states have (on average 2.1037778789258077) internal successors, (23110), 11027 states have internal predecessors, (23110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11028 states to 11028 states and 23110 transitions. [2022-11-26 00:22:59,114 INFO L78 Accepts]: Start accepts. Automaton has 11028 states and 23110 transitions. Word has length 31 [2022-11-26 00:22:59,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:22:59,114 INFO L495 AbstractCegarLoop]: Abstraction has 11028 states and 23110 transitions. [2022-11-26 00:22:59,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:22:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11028 states and 23110 transitions. [2022-11-26 00:22:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:22:59,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:22:59,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:22:59,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-26 00:22:59,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:59,318 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:22:59,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:22:59,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1206355136, now seen corresponding path program 27 times [2022-11-26 00:22:59,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:22:59,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590106118] [2022-11-26 00:22:59,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:22:59,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:22:59,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:22:59,320 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:22:59,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-26 00:22:59,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:22:59,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:22:59,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:22:59,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:22:59,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:59,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:22:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:22:59,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:22:59,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:22:59,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:22:59,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:22:59,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:00,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:23:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:00,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:00,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:00,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:00,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:00,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:00,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:00,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:00,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:00,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:00,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:00,662 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:00,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:00,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:00,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590106118] [2022-11-26 00:23:00,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590106118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:00,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:00,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629883710] [2022-11-26 00:23:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:00,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:00,721 INFO L87 Difference]: Start difference. First operand 11028 states and 23110 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:08,236 INFO L93 Difference]: Finished difference Result 13711 states and 28606 transitions. [2022-11-26 00:23:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:23:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:08,300 INFO L225 Difference]: With dead ends: 13711 [2022-11-26 00:23:08,300 INFO L226 Difference]: Without dead ends: 13711 [2022-11-26 00:23:08,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:23:08,301 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 308 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:08,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 382 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:23:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13711 states. [2022-11-26 00:23:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13711 to 11035. [2022-11-26 00:23:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10992 states have (on average 2.103711790393013) internal successors, (23124), 11034 states have internal predecessors, (23124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 23124 transitions. [2022-11-26 00:23:08,459 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 23124 transitions. Word has length 31 [2022-11-26 00:23:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:08,459 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 23124 transitions. [2022-11-26 00:23:08,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 23124 transitions. [2022-11-26 00:23:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:08,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:08,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:08,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:08,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:08,662 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:08,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:08,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1335796772, now seen corresponding path program 28 times [2022-11-26 00:23:08,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:08,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508857982] [2022-11-26 00:23:08,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:23:08,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:08,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:08,665 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:08,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-26 00:23:08,993 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:23:08,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:23:08,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:23:09,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:09,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:09,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:23:09,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:09,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:09,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:23:09,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:23:09,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:23:09,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:23:09,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:23:09,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:23:09,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:23:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:23:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:23:09,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:09,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:09,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:09,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:09,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:09,862 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:09,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:09,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:09,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:09,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508857982] [2022-11-26 00:23:09,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508857982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:09,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:09,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:09,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66238224] [2022-11-26 00:23:09,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:09,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:09,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:09,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:09,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:09,915 INFO L87 Difference]: Start difference. First operand 11035 states and 23124 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:17,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:17,584 INFO L93 Difference]: Finished difference Result 13837 states and 28858 transitions. [2022-11-26 00:23:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:23:17,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:17,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:17,605 INFO L225 Difference]: With dead ends: 13837 [2022-11-26 00:23:17,606 INFO L226 Difference]: Without dead ends: 13837 [2022-11-26 00:23:17,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=247, Invalid=565, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:23:17,606 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 287 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:17,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 385 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:23:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13837 states. [2022-11-26 00:23:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13837 to 11042. [2022-11-26 00:23:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11042 states, 10999 states have (on average 2.1036457859805435) internal successors, (23138), 11041 states have internal predecessors, (23138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11042 states to 11042 states and 23138 transitions. [2022-11-26 00:23:17,758 INFO L78 Accepts]: Start accepts. Automaton has 11042 states and 23138 transitions. Word has length 31 [2022-11-26 00:23:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:17,758 INFO L495 AbstractCegarLoop]: Abstraction has 11042 states and 23138 transitions. [2022-11-26 00:23:17,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 11042 states and 23138 transitions. [2022-11-26 00:23:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:17,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:17,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:17,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:17,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:17,962 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:17,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:17,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1910605290, now seen corresponding path program 29 times [2022-11-26 00:23:17,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:17,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849144038] [2022-11-26 00:23:17,962 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:23:17,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:17,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:17,964 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:17,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-26 00:23:18,315 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:23:18,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:23:18,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:23:18,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:18,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:18,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:23:18,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:18,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:18,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:18,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:23:18,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:18,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:18,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:18,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:18,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:18,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:18,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:19,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:19,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:19,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:19,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:19,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,404 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:19,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:19,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:19,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:19,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849144038] [2022-11-26 00:23:19,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849144038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:19,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:19,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546410724] [2022-11-26 00:23:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:19,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:19,459 INFO L87 Difference]: Start difference. First operand 11042 states and 23138 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:24,948 INFO L93 Difference]: Finished difference Result 13641 states and 28465 transitions. [2022-11-26 00:23:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:23:24,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:24,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:24,966 INFO L225 Difference]: With dead ends: 13641 [2022-11-26 00:23:24,966 INFO L226 Difference]: Without dead ends: 13641 [2022-11-26 00:23:24,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:23:24,967 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 283 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 2157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:24,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 329 Invalid, 2157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:23:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-11-26 00:23:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 11065. [2022-11-26 00:23:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11065 states, 11022 states have (on average 2.103429504627109) internal successors, (23184), 11064 states have internal predecessors, (23184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11065 states to 11065 states and 23184 transitions. [2022-11-26 00:23:25,112 INFO L78 Accepts]: Start accepts. Automaton has 11065 states and 23184 transitions. Word has length 31 [2022-11-26 00:23:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:25,112 INFO L495 AbstractCegarLoop]: Abstraction has 11065 states and 23184 transitions. [2022-11-26 00:23:25,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 11065 states and 23184 transitions. [2022-11-26 00:23:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:25,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:25,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:25,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-11-26 00:23:25,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:25,329 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash -522307302, now seen corresponding path program 30 times [2022-11-26 00:23:25,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:25,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137957322] [2022-11-26 00:23:25,330 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:23:25,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:25,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:25,332 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:25,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-26 00:23:25,676 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:23:25,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:23:25,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:23:25,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:25,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:25,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:25,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:25,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:23:25,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:25,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:25,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:26,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:23:26,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:26,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:26,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:26,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:26,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:26,842 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:26,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:26,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:26,897 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:26,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137957322] [2022-11-26 00:23:26,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137957322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:26,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:26,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:26,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766690717] [2022-11-26 00:23:26,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:26,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:26,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:26,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:26,899 INFO L87 Difference]: Start difference. First operand 11065 states and 23184 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:34,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:34,287 INFO L93 Difference]: Finished difference Result 13700 states and 28584 transitions. [2022-11-26 00:23:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:23:34,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:34,307 INFO L225 Difference]: With dead ends: 13700 [2022-11-26 00:23:34,307 INFO L226 Difference]: Without dead ends: 13700 [2022-11-26 00:23:34,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:23:34,308 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 263 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:34,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 380 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:23:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13700 states. [2022-11-26 00:23:34,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13700 to 11054. [2022-11-26 00:23:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 11011 states have (on average 2.103532830805558) internal successors, (23162), 11053 states have internal predecessors, (23162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 23162 transitions. [2022-11-26 00:23:34,468 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 23162 transitions. Word has length 31 [2022-11-26 00:23:34,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:34,468 INFO L495 AbstractCegarLoop]: Abstraction has 11054 states and 23162 transitions. [2022-11-26 00:23:34,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:34,468 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 23162 transitions. [2022-11-26 00:23:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:34,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:34,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:34,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:34,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:34,672 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash -842422818, now seen corresponding path program 31 times [2022-11-26 00:23:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:34,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275411663] [2022-11-26 00:23:34,672 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:23:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:34,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:34,673 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:34,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-26 00:23:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:35,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:23:35,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:35,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:35,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:23:35,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:35,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:35,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:35,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:23:35,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:23:35,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:35,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:35,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:23:35,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:23:35,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:35,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:35,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:35,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:35,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:36,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:36,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:36,125 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:36,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:36,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:36,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:36,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275411663] [2022-11-26 00:23:36,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275411663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:36,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:36,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:36,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486273318] [2022-11-26 00:23:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:36,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:36,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:36,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:36,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:36,187 INFO L87 Difference]: Start difference. First operand 11054 states and 23162 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:43,956 INFO L93 Difference]: Finished difference Result 13806 states and 28796 transitions. [2022-11-26 00:23:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:23:43,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:43,977 INFO L225 Difference]: With dead ends: 13806 [2022-11-26 00:23:43,977 INFO L226 Difference]: Without dead ends: 13806 [2022-11-26 00:23:43,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:23:43,978 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 262 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:43,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 380 Invalid, 2998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:23:44,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2022-11-26 00:23:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11043. [2022-11-26 00:23:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11043 states, 11000 states have (on average 2.1036363636363635) internal successors, (23140), 11042 states have internal predecessors, (23140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11043 states to 11043 states and 23140 transitions. [2022-11-26 00:23:44,157 INFO L78 Accepts]: Start accepts. Automaton has 11043 states and 23140 transitions. Word has length 31 [2022-11-26 00:23:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:44,157 INFO L495 AbstractCegarLoop]: Abstraction has 11043 states and 23140 transitions. [2022-11-26 00:23:44,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11043 states and 23140 transitions. [2022-11-26 00:23:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:44,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:44,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:44,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:44,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:44,360 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1324406892, now seen corresponding path program 32 times [2022-11-26 00:23:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:44,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497409450] [2022-11-26 00:23:44,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:23:44,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:44,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:44,362 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:44,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-26 00:23:44,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:23:44,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:23:44,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-26 00:23:44,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:44,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:44,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:44,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:23:44,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:44,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:44,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:45,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:45,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:23:45,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:45,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:45,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:45,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:23:45,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:45,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:23:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:45,884 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:45,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:45,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:45,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:45,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497409450] [2022-11-26 00:23:45,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497409450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:45,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:45,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:45,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081768035] [2022-11-26 00:23:45,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:45,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:45,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:45,944 INFO L87 Difference]: Start difference. First operand 11043 states and 23140 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:52,428 INFO L93 Difference]: Finished difference Result 13585 states and 28353 transitions. [2022-11-26 00:23:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:23:52,429 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:23:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:52,448 INFO L225 Difference]: With dead ends: 13585 [2022-11-26 00:23:52,448 INFO L226 Difference]: Without dead ends: 13585 [2022-11-26 00:23:52,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:23:52,449 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 259 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:52,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 375 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:23:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13585 states. [2022-11-26 00:23:52,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13585 to 11056. [2022-11-26 00:23:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11056 states, 11013 states have (on average 2.103514028874966) internal successors, (23166), 11055 states have internal predecessors, (23166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:52,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11056 states to 11056 states and 23166 transitions. [2022-11-26 00:23:52,600 INFO L78 Accepts]: Start accepts. Automaton has 11056 states and 23166 transitions. Word has length 31 [2022-11-26 00:23:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:52,601 INFO L495 AbstractCegarLoop]: Abstraction has 11056 states and 23166 transitions. [2022-11-26 00:23:52,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 11056 states and 23166 transitions. [2022-11-26 00:23:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:23:52,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:52,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:52,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:52,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:52,804 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:23:52,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1108505700, now seen corresponding path program 33 times [2022-11-26 00:23:52,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:23:52,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926429916] [2022-11-26 00:23:52,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:23:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:23:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:23:52,806 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:23:52,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-26 00:23:53,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:23:53,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:23:53,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:23:53,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:53,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:23:53,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:23:53,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:23:53,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:23:53,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:23:53,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:23:53,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:23:53,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:53,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:53,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:53,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:53,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:23:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:53,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:23:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:23:54,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:23:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,289 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:23:54,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:23:54,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:54,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:54,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:23:54,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926429916] [2022-11-26 00:23:54,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926429916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:54,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:54,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:23:54,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675979725] [2022-11-26 00:23:54,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:54,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:23:54,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:23:54,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:23:54,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:23:54,347 INFO L87 Difference]: Start difference. First operand 11056 states and 23166 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:01,310 INFO L93 Difference]: Finished difference Result 13629 states and 28442 transitions. [2022-11-26 00:24:01,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:24:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:01,331 INFO L225 Difference]: With dead ends: 13629 [2022-11-26 00:24:01,331 INFO L226 Difference]: Without dead ends: 13629 [2022-11-26 00:24:01,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:24:01,331 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 294 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:01,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 377 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:24:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13629 states. [2022-11-26 00:24:01,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13629 to 11045. [2022-11-26 00:24:01,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11045 states, 11002 states have (on average 2.1036175240865296) internal successors, (23144), 11044 states have internal predecessors, (23144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 23144 transitions. [2022-11-26 00:24:01,484 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 23144 transitions. Word has length 31 [2022-11-26 00:24:01,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:01,484 INFO L495 AbstractCegarLoop]: Abstraction has 11045 states and 23144 transitions. [2022-11-26 00:24:01,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 23144 transitions. [2022-11-26 00:24:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:01,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:01,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:01,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:01,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:01,702 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:01,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1240859800, now seen corresponding path program 10 times [2022-11-26 00:24:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483646136] [2022-11-26 00:24:01,703 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:24:01,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:01,704 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:01,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-26 00:24:02,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:24:02,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:24:02,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-26 00:24:02,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:02,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:02,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:02,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:24:02,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:02,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:02,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:24:02,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:24:02,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:24:02,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:24:02,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:24:03,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:03,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:03,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:03,073 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:03,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:24:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:03,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:03,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483646136] [2022-11-26 00:24:03,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483646136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:03,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:03,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:24:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616400350] [2022-11-26 00:24:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:03,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:24:03,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:03,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:24:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:24:03,164 INFO L87 Difference]: Start difference. First operand 11045 states and 23144 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:11,650 INFO L93 Difference]: Finished difference Result 14284 states and 29651 transitions. [2022-11-26 00:24:11,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:24:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:11,673 INFO L225 Difference]: With dead ends: 14284 [2022-11-26 00:24:11,673 INFO L226 Difference]: Without dead ends: 14284 [2022-11-26 00:24:11,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:24:11,673 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 577 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 3163 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 3288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:11,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 823 Invalid, 3288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3163 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-26 00:24:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2022-11-26 00:24:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 11395. [2022-11-26 00:24:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11395 states, 11352 states have (on average 2.102272727272727) internal successors, (23865), 11394 states have internal predecessors, (23865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 23865 transitions. [2022-11-26 00:24:11,861 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 23865 transitions. Word has length 31 [2022-11-26 00:24:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 11395 states and 23865 transitions. [2022-11-26 00:24:11,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 23865 transitions. [2022-11-26 00:24:11,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:11,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:11,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:11,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:12,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:12,065 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -44731731, now seen corresponding path program 10 times [2022-11-26 00:24:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:12,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697218488] [2022-11-26 00:24:12,066 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:24:12,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:12,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:12,067 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:12,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-26 00:24:12,432 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:24:12,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:24:12,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:24:12,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:12,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:12,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:12,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:24:12,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:12,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:12,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:24:13,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:24:13,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:24:13,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:13,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:24:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,286 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:13,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:24:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:13,346 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:13,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:24:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:13,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:13,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:13,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697218488] [2022-11-26 00:24:13,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697218488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:13,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:13,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:24:13,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182044721] [2022-11-26 00:24:13,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:13,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:24:13,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:13,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:24:13,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:24:13,409 INFO L87 Difference]: Start difference. First operand 11395 states and 23865 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:21,206 INFO L93 Difference]: Finished difference Result 13869 states and 28808 transitions. [2022-11-26 00:24:21,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:24:21,206 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:21,226 INFO L225 Difference]: With dead ends: 13869 [2022-11-26 00:24:21,226 INFO L226 Difference]: Without dead ends: 13869 [2022-11-26 00:24:21,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-11-26 00:24:21,227 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 489 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 3165 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 3348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 3165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:21,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1035 Invalid, 3348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 3165 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:24:21,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13869 states. [2022-11-26 00:24:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13869 to 11104. [2022-11-26 00:24:21,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11104 states, 11061 states have (on average 2.10405930747672) internal successors, (23273), 11103 states have internal predecessors, (23273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11104 states to 11104 states and 23273 transitions. [2022-11-26 00:24:21,434 INFO L78 Accepts]: Start accepts. Automaton has 11104 states and 23273 transitions. Word has length 31 [2022-11-26 00:24:21,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:21,434 INFO L495 AbstractCegarLoop]: Abstraction has 11104 states and 23273 transitions. [2022-11-26 00:24:21,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:21,434 INFO L276 IsEmpty]: Start isEmpty. Operand 11104 states and 23273 transitions. [2022-11-26 00:24:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:21,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:21,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:21,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:21,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:21,637 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:21,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:21,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1059975278, now seen corresponding path program 11 times [2022-11-26 00:24:21,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:21,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828244440] [2022-11-26 00:24:21,639 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:24:21,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:21,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:21,640 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:21,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-26 00:24:22,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:24:22,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:24:22,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 00:24:22,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:22,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:22,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:24:22,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:22,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:22,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:24:22,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:24:22,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:24:22,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:24:23,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:24:23,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:23,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:23,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:23,155 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:23,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:24:23,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:23,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:23,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:23,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828244440] [2022-11-26 00:24:23,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828244440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:23,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:23,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:24:23,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035449404] [2022-11-26 00:24:23,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:23,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:24:23,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:23,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:24:23,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:24:23,260 INFO L87 Difference]: Start difference. First operand 11104 states and 23273 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:31,958 INFO L93 Difference]: Finished difference Result 15649 states and 32488 transitions. [2022-11-26 00:24:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:24:31,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:31,982 INFO L225 Difference]: With dead ends: 15649 [2022-11-26 00:24:31,982 INFO L226 Difference]: Without dead ends: 15649 [2022-11-26 00:24:31,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:24:31,982 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 632 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:31,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 930 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-26 00:24:31,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15649 states. [2022-11-26 00:24:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15649 to 13215. [2022-11-26 00:24:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13215 states, 13172 states have (on average 2.1087154570300637) internal successors, (27776), 13214 states have internal predecessors, (27776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13215 states to 13215 states and 27776 transitions. [2022-11-26 00:24:32,180 INFO L78 Accepts]: Start accepts. Automaton has 13215 states and 27776 transitions. Word has length 31 [2022-11-26 00:24:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:32,181 INFO L495 AbstractCegarLoop]: Abstraction has 13215 states and 27776 transitions. [2022-11-26 00:24:32,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13215 states and 27776 transitions. [2022-11-26 00:24:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:32,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:32,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:32,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:32,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:32,384 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:32,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:32,385 INFO L85 PathProgramCache]: Analyzing trace with hash 794479808, now seen corresponding path program 12 times [2022-11-26 00:24:32,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:32,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271213896] [2022-11-26 00:24:32,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:24:32,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:32,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:32,386 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:32,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-26 00:24:32,755 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:24:32,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:24:32,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-26 00:24:32,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:32,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:32,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:32,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:24:32,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:33,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:33,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:24:33,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:24:33,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:24:33,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:24:33,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:24:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:33,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:33,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:33,792 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:33,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:24:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:33,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:33,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:33,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271213896] [2022-11-26 00:24:33,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271213896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:33,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:33,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:24:33,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133736768] [2022-11-26 00:24:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:33,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:24:33,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:33,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:24:33,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:24:33,882 INFO L87 Difference]: Start difference. First operand 13215 states and 27776 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:41,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:41,339 INFO L93 Difference]: Finished difference Result 15723 states and 32877 transitions. [2022-11-26 00:24:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:24:41,340 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:41,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:41,362 INFO L225 Difference]: With dead ends: 15723 [2022-11-26 00:24:41,362 INFO L226 Difference]: Without dead ends: 15723 [2022-11-26 00:24:41,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:24:41,363 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 515 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:41,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 706 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:24:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15723 states. [2022-11-26 00:24:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15723 to 13217. [2022-11-26 00:24:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13217 states, 13174 states have (on average 2.108698952482162) internal successors, (27780), 13216 states have internal predecessors, (27780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13217 states to 13217 states and 27780 transitions. [2022-11-26 00:24:41,549 INFO L78 Accepts]: Start accepts. Automaton has 13217 states and 27780 transitions. Word has length 31 [2022-11-26 00:24:41,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:41,549 INFO L495 AbstractCegarLoop]: Abstraction has 13217 states and 27780 transitions. [2022-11-26 00:24:41,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:41,549 INFO L276 IsEmpty]: Start isEmpty. Operand 13217 states and 27780 transitions. [2022-11-26 00:24:41,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:41,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:41,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:41,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2022-11-26 00:24:41,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:41,759 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash 806155958, now seen corresponding path program 13 times [2022-11-26 00:24:41,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239243438] [2022-11-26 00:24:41,760 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:24:41,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:41,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:41,761 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:41,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-26 00:24:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:42,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:24:42,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:42,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:42,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:24:42,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:42,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:42,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:24:42,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:24:42,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:24:42,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:24:43,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:24:43,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:43,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:43,173 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:43,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:24:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:43,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:43,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:43,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239243438] [2022-11-26 00:24:43,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239243438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:43,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:43,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:24:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999924519] [2022-11-26 00:24:43,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:43,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:24:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:43,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:24:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:24:43,259 INFO L87 Difference]: Start difference. First operand 13217 states and 27780 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:52,164 INFO L93 Difference]: Finished difference Result 15767 states and 32963 transitions. [2022-11-26 00:24:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:24:52,165 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:24:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:52,187 INFO L225 Difference]: With dead ends: 15767 [2022-11-26 00:24:52,187 INFO L226 Difference]: Without dead ends: 15767 [2022-11-26 00:24:52,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:24:52,187 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 520 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:52,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 788 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-26 00:24:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15767 states. [2022-11-26 00:24:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15767 to 13213. [2022-11-26 00:24:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13213 states, 13170 states have (on average 2.1084282460136676) internal successors, (27768), 13212 states have internal predecessors, (27768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13213 states to 13213 states and 27768 transitions. [2022-11-26 00:24:52,454 INFO L78 Accepts]: Start accepts. Automaton has 13213 states and 27768 transitions. Word has length 31 [2022-11-26 00:24:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:52,454 INFO L495 AbstractCegarLoop]: Abstraction has 13213 states and 27768 transitions. [2022-11-26 00:24:52,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13213 states and 27768 transitions. [2022-11-26 00:24:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:24:52,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:52,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:52,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:52,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:52,657 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:24:52,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1518432250, now seen corresponding path program 14 times [2022-11-26 00:24:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:52,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047479083] [2022-11-26 00:24:52,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:24:52,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:24:52,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:52,659 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:24:52,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-26 00:24:53,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:24:53,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:24:53,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 00:24:53,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:24:53,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:24:53,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:24:53,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:53,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:24:53,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:24:53,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:24:53,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:24:53,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:24:54,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:54,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:54,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:54,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:54,025 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:24:54,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:24:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:54,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:54,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:54,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047479083] [2022-11-26 00:24:54,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047479083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:54,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:54,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:24:54,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208549967] [2022-11-26 00:24:54,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:54,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:24:54,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:24:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:24:54,115 INFO L87 Difference]: Start difference. First operand 13213 states and 27768 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:00,531 INFO L93 Difference]: Finished difference Result 15852 states and 33123 transitions. [2022-11-26 00:25:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:25:00,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:00,611 INFO L225 Difference]: With dead ends: 15852 [2022-11-26 00:25:00,611 INFO L226 Difference]: Without dead ends: 15852 [2022-11-26 00:25:00,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:25:00,612 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 398 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:00,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 983 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:25:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15852 states. [2022-11-26 00:25:00,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15852 to 13146. [2022-11-26 00:25:00,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13146 states, 13103 states have (on average 2.1082194917194537) internal successors, (27624), 13145 states have internal predecessors, (27624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13146 states to 13146 states and 27624 transitions. [2022-11-26 00:25:00,783 INFO L78 Accepts]: Start accepts. Automaton has 13146 states and 27624 transitions. Word has length 31 [2022-11-26 00:25:00,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:00,783 INFO L495 AbstractCegarLoop]: Abstraction has 13146 states and 27624 transitions. [2022-11-26 00:25:00,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13146 states and 27624 transitions. [2022-11-26 00:25:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:00,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:00,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:00,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:00,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:00,986 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash 577187681, now seen corresponding path program 11 times [2022-11-26 00:25:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:00,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971471845] [2022-11-26 00:25:00,988 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:25:00,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:00,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:00,989 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:00,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-26 00:25:01,370 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:25:01,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:01,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-26 00:25:01,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:01,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:01,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:01,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:01,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:25:01,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:01,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:25:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:25:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:25:02,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:02,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:25:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:02,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:02,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:02,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:02,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:02,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:02,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:25:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:02,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:02,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:02,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971471845] [2022-11-26 00:25:02,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971471845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:02,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:02,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:25:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108176499] [2022-11-26 00:25:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:02,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:25:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:02,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:25:02,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:25:02,557 INFO L87 Difference]: Start difference. First operand 13146 states and 27624 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:09,913 INFO L93 Difference]: Finished difference Result 14870 states and 31126 transitions. [2022-11-26 00:25:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:25:09,914 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:09,933 INFO L225 Difference]: With dead ends: 14870 [2022-11-26 00:25:09,934 INFO L226 Difference]: Without dead ends: 14870 [2022-11-26 00:25:09,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:25:09,934 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 404 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:09,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 361 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:25:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14870 states. [2022-11-26 00:25:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14870 to 13144. [2022-11-26 00:25:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13144 states, 13101 states have (on average 2.1082360125181285) internal successors, (27620), 13143 states have internal predecessors, (27620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13144 states to 13144 states and 27620 transitions. [2022-11-26 00:25:10,110 INFO L78 Accepts]: Start accepts. Automaton has 13144 states and 27620 transitions. Word has length 31 [2022-11-26 00:25:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:10,110 INFO L495 AbstractCegarLoop]: Abstraction has 13144 states and 27620 transitions. [2022-11-26 00:25:10,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 13144 states and 27620 transitions. [2022-11-26 00:25:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:10,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:10,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:10,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2022-11-26 00:25:10,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:10,314 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:10,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:10,314 INFO L85 PathProgramCache]: Analyzing trace with hash 619200097, now seen corresponding path program 12 times [2022-11-26 00:25:10,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:10,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779780630] [2022-11-26 00:25:10,315 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:25:10,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:10,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:10,316 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:10,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-26 00:25:10,700 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:25:10,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:10,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-26 00:25:10,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:10,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:10,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:10,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:10,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:25:10,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:11,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:25:11,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:25:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:25:11,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:25:11,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:25:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:11,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:11,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:12,011 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:12,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:12,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:12,074 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:12,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779780630] [2022-11-26 00:25:12,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779780630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:12,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:12,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:25:12,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870563612] [2022-11-26 00:25:12,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:12,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:25:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:25:12,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:25:12,075 INFO L87 Difference]: Start difference. First operand 13144 states and 27620 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:21,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:21,367 INFO L93 Difference]: Finished difference Result 16120 states and 33641 transitions. [2022-11-26 00:25:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:25:21,368 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:21,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:21,455 INFO L225 Difference]: With dead ends: 16120 [2022-11-26 00:25:21,455 INFO L226 Difference]: Without dead ends: 16120 [2022-11-26 00:25:21,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=320, Invalid=940, Unknown=0, NotChecked=0, Total=1260 [2022-11-26 00:25:21,455 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 533 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:21,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 649 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-26 00:25:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16120 states. [2022-11-26 00:25:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16120 to 13550. [2022-11-26 00:25:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13507 states have (on average 2.1073517435403866) internal successors, (28464), 13549 states have internal predecessors, (28464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 28464 transitions. [2022-11-26 00:25:21,619 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 28464 transitions. Word has length 31 [2022-11-26 00:25:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:21,619 INFO L495 AbstractCegarLoop]: Abstraction has 13550 states and 28464 transitions. [2022-11-26 00:25:21,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 28464 transitions. [2022-11-26 00:25:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:21,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:21,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:21,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:21,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:21,823 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:21,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:21,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1279290715, now seen corresponding path program 13 times [2022-11-26 00:25:21,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:21,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471277204] [2022-11-26 00:25:21,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:25:21,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:21,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:21,825 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:21,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-26 00:25:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:22,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-26 00:25:22,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:22,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:22,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:22,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:22,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:25:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:22,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:25:22,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:22,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:25:22,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:22,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:22,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:25:23,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:25:23,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:23,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:23,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:23,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:23,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:23,322 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:23,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:25:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:23,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:23,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:23,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471277204] [2022-11-26 00:25:23,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471277204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:23,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:23,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:25:23,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800100033] [2022-11-26 00:25:23,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:23,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:25:23,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:23,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:25:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:25:23,382 INFO L87 Difference]: Start difference. First operand 13550 states and 28464 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:30,660 INFO L93 Difference]: Finished difference Result 15427 states and 32277 transitions. [2022-11-26 00:25:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:25:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:30,682 INFO L225 Difference]: With dead ends: 15427 [2022-11-26 00:25:30,682 INFO L226 Difference]: Without dead ends: 15427 [2022-11-26 00:25:30,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-26 00:25:30,683 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 518 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:30,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 427 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:25:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15427 states. [2022-11-26 00:25:30,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15427 to 13594. [2022-11-26 00:25:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13594 states, 13551 states have (on average 2.10700317319755) internal successors, (28552), 13593 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 28552 transitions. [2022-11-26 00:25:30,865 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 28552 transitions. Word has length 31 [2022-11-26 00:25:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:30,865 INFO L495 AbstractCegarLoop]: Abstraction has 13594 states and 28552 transitions. [2022-11-26 00:25:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:30,865 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 28552 transitions. [2022-11-26 00:25:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:30,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:30,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:30,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:31,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:31,069 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -445862883, now seen corresponding path program 14 times [2022-11-26 00:25:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:31,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466935925] [2022-11-26 00:25:31,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:25:31,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:31,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:31,071 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:31,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-26 00:25:31,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:25:31,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:31,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-26 00:25:31,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:31,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:31,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:31,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:32,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:25:32,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:32,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-26 00:25:32,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:25:32,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:25:32,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:25:32,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:32,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:32,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:32,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:32,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-26 00:25:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:32,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:32,644 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:32,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466935925] [2022-11-26 00:25:32,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466935925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:32,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:32,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:25:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702846408] [2022-11-26 00:25:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:32,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:25:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:25:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:25:32,645 INFO L87 Difference]: Start difference. First operand 13594 states and 28552 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:39,733 INFO L93 Difference]: Finished difference Result 15439 states and 32294 transitions. [2022-11-26 00:25:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:25:39,738 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:39,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:39,758 INFO L225 Difference]: With dead ends: 15439 [2022-11-26 00:25:39,759 INFO L226 Difference]: Without dead ends: 15439 [2022-11-26 00:25:39,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2022-11-26 00:25:39,759 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 541 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:39,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 427 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:25:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15439 states. [2022-11-26 00:25:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15439 to 13556. [2022-11-26 00:25:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 13513 states have (on average 2.1070820691186265) internal successors, (28473), 13555 states have internal predecessors, (28473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 28473 transitions. [2022-11-26 00:25:39,981 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 28473 transitions. Word has length 31 [2022-11-26 00:25:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:39,981 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 28473 transitions. [2022-11-26 00:25:39,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 28473 transitions. [2022-11-26 00:25:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:39,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:39,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:39,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:40,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:40,184 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:40,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash 994689566, now seen corresponding path program 34 times [2022-11-26 00:25:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:40,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793742460] [2022-11-26 00:25:40,185 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:25:40,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:40,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:40,186 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:40,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-26 00:25:40,587 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:25:40,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:40,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:25:40,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:40,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:40,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:40,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:40,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:40,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:40,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:25:40,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:25:40,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:25:40,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:25:41,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:25:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:41,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:25:41,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:25:41,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:25:41,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:25:41,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:41,761 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:41,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:41,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:41,819 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:41,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793742460] [2022-11-26 00:25:41,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793742460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:41,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:41,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:25:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492253472] [2022-11-26 00:25:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:41,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:25:41,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:25:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:25:41,820 INFO L87 Difference]: Start difference. First operand 13556 states and 28473 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:47,469 INFO L93 Difference]: Finished difference Result 17282 states and 36076 transitions. [2022-11-26 00:25:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:25:47,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:47,493 INFO L225 Difference]: With dead ends: 17282 [2022-11-26 00:25:47,493 INFO L226 Difference]: Without dead ends: 17282 [2022-11-26 00:25:47,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:25:47,493 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 261 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:47,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 248 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:25:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2022-11-26 00:25:47,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 13578. [2022-11-26 00:25:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13578 states, 13535 states have (on average 2.106908016254156) internal successors, (28517), 13577 states have internal predecessors, (28517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13578 states to 13578 states and 28517 transitions. [2022-11-26 00:25:47,686 INFO L78 Accepts]: Start accepts. Automaton has 13578 states and 28517 transitions. Word has length 31 [2022-11-26 00:25:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:47,686 INFO L495 AbstractCegarLoop]: Abstraction has 13578 states and 28517 transitions. [2022-11-26 00:25:47,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13578 states and 28517 transitions. [2022-11-26 00:25:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:47,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:47,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:47,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:47,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:47,891 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:47,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1438223026, now seen corresponding path program 35 times [2022-11-26 00:25:47,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:47,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999326775] [2022-11-26 00:25:47,892 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:25:47,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:47,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:47,892 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:47,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-26 00:25:48,295 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:25:48,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:48,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:25:48,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:48,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:48,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:48,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:48,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:25:48,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:25:48,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:25:48,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:25:48,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:25:48,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:48,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:48,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:25:48,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:25:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:25:48,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:25:49,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:49,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:49,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:25:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,324 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:49,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:49,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:49,380 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:49,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999326775] [2022-11-26 00:25:49,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999326775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:49,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:49,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:25:49,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559606076] [2022-11-26 00:25:49,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:49,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:25:49,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:49,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:25:49,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:25:49,381 INFO L87 Difference]: Start difference. First operand 13578 states and 28517 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:56,886 INFO L93 Difference]: Finished difference Result 17341 states and 36195 transitions. [2022-11-26 00:25:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:25:56,886 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:25:56,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:56,908 INFO L225 Difference]: With dead ends: 17341 [2022-11-26 00:25:56,908 INFO L226 Difference]: Without dead ends: 17341 [2022-11-26 00:25:56,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:25:56,909 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 219 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 2993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:56,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 304 Invalid, 2993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:25:56,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17341 states. [2022-11-26 00:25:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17341 to 13567. [2022-11-26 00:25:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13567 states, 13524 states have (on average 2.106994971901804) internal successors, (28495), 13566 states have internal predecessors, (28495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13567 states to 13567 states and 28495 transitions. [2022-11-26 00:25:57,091 INFO L78 Accepts]: Start accepts. Automaton has 13567 states and 28495 transitions. Word has length 31 [2022-11-26 00:25:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:57,091 INFO L495 AbstractCegarLoop]: Abstraction has 13567 states and 28495 transitions. [2022-11-26 00:25:57,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 13567 states and 28495 transitions. [2022-11-26 00:25:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:25:57,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:57,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:57,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:57,294 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:25:57,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1758338542, now seen corresponding path program 36 times [2022-11-26 00:25:57,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:57,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635725018] [2022-11-26 00:25:57,295 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:25:57,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:25:57,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:57,296 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:25:57,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-26 00:25:57,739 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:25:57,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:57,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:25:57,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:57,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:57,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:25:57,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:57,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:25:57,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:25:57,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:25:58,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:25:58,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:25:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:25:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:25:58,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:25:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:25:58,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:25:58,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:25:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:25:58,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:25:58,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:25:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:25:58,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:58,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:58,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:25:58,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:25:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,725 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:25:58,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:25:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:58,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:58,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:58,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635725018] [2022-11-26 00:25:58,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635725018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:58,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:58,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:25:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965850898] [2022-11-26 00:25:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:58,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:25:58,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:25:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:25:58,776 INFO L87 Difference]: Start difference. First operand 13567 states and 28495 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:05,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:05,767 INFO L93 Difference]: Finished difference Result 17395 states and 36303 transitions. [2022-11-26 00:26:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:26:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:05,788 INFO L225 Difference]: With dead ends: 17395 [2022-11-26 00:26:05,788 INFO L226 Difference]: Without dead ends: 17395 [2022-11-26 00:26:05,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:26:05,789 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 331 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:05,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 259 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-26 00:26:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17395 states. [2022-11-26 00:26:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17395 to 13556. [2022-11-26 00:26:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 13513 states have (on average 2.1070820691186265) internal successors, (28473), 13555 states have internal predecessors, (28473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 28473 transitions. [2022-11-26 00:26:05,957 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 28473 transitions. Word has length 31 [2022-11-26 00:26:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:05,957 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 28473 transitions. [2022-11-26 00:26:05,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 28473 transitions. [2022-11-26 00:26:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:05,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:05,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:05,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:06,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:06,161 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:06,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:06,162 INFO L85 PathProgramCache]: Analyzing trace with hash -5523154, now seen corresponding path program 37 times [2022-11-26 00:26:06,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:06,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646477435] [2022-11-26 00:26:06,162 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:26:06,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:06,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:06,170 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:06,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-26 00:26:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:06,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:26:06,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:06,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:26:06,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:06,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:06,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:26:06,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-26 00:26:06,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:26:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:26:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:26:06,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:26:06,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:26:06,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:06,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-26 00:26:07,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-26 00:26:07,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:07,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:07,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:07,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:07,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:07,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:07,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:07,417 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:07,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:07,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:07,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:07,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:07,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646477435] [2022-11-26 00:26:07,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646477435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:07,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:07,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:07,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400454529] [2022-11-26 00:26:07,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:07,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:07,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:07,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:07,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:07,470 INFO L87 Difference]: Start difference. First operand 13556 states and 28473 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:13,744 INFO L93 Difference]: Finished difference Result 17297 states and 36100 transitions. [2022-11-26 00:26:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:26:13,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:13,766 INFO L225 Difference]: With dead ends: 17297 [2022-11-26 00:26:13,766 INFO L226 Difference]: Without dead ends: 17297 [2022-11-26 00:26:13,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:26:13,767 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 300 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:13,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 260 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:26:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17297 states. [2022-11-26 00:26:13,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17297 to 13538. [2022-11-26 00:26:13,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13538 states, 13495 states have (on average 2.1072248981104114) internal successors, (28437), 13537 states have internal predecessors, (28437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 28437 transitions. [2022-11-26 00:26:13,950 INFO L78 Accepts]: Start accepts. Automaton has 13538 states and 28437 transitions. Word has length 31 [2022-11-26 00:26:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:13,950 INFO L495 AbstractCegarLoop]: Abstraction has 13538 states and 28437 transitions. [2022-11-26 00:26:13,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13538 states and 28437 transitions. [2022-11-26 00:26:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:13,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:13,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:13,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:14,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:14,153 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1054088388, now seen corresponding path program 38 times [2022-11-26 00:26:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:14,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749058542] [2022-11-26 00:26:14,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:26:14,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:14,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:14,155 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:14,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-26 00:26:14,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:26:14,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:14,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:26:14,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:14,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:14,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:14,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:14,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:26:14,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:14,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:14,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:14,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:26:14,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:15,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:15,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:15,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:15,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:15,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:15,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:15,740 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:15,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:15,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:15,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:15,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749058542] [2022-11-26 00:26:15,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749058542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:15,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:15,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:15,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109422057] [2022-11-26 00:26:15,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:15,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:15,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:15,803 INFO L87 Difference]: Start difference. First operand 13538 states and 28437 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:22,847 INFO L93 Difference]: Finished difference Result 17734 states and 36991 transitions. [2022-11-26 00:26:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:26:22,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:22,870 INFO L225 Difference]: With dead ends: 17734 [2022-11-26 00:26:22,870 INFO L226 Difference]: Without dead ends: 17734 [2022-11-26 00:26:22,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:26:22,871 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 216 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 2605 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:22,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 296 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2605 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-26 00:26:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17734 states. [2022-11-26 00:26:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17734 to 13561. [2022-11-26 00:26:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13561 states, 13518 states have (on average 2.1070424619026484) internal successors, (28483), 13560 states have internal predecessors, (28483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13561 states to 13561 states and 28483 transitions. [2022-11-26 00:26:23,107 INFO L78 Accepts]: Start accepts. Automaton has 13561 states and 28483 transitions. Word has length 31 [2022-11-26 00:26:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:23,107 INFO L495 AbstractCegarLoop]: Abstraction has 13561 states and 28483 transitions. [2022-11-26 00:26:23,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 13561 states and 28483 transitions. [2022-11-26 00:26:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:23,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:23,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:23,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:23,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:23,310 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash 807966316, now seen corresponding path program 39 times [2022-11-26 00:26:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:23,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334777284] [2022-11-26 00:26:23,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:26:23,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:23,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:23,316 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:23,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-26 00:26:23,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:26:23,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:23,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:26:23,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:23,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:23,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:26:23,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:23,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:23,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:24,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:26:24,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:24,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:24,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:24,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:24,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:24,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:24,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:24,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:24,818 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:24,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334777284] [2022-11-26 00:26:24,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334777284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:24,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:24,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:24,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815340719] [2022-11-26 00:26:24,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:24,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:24,820 INFO L87 Difference]: Start difference. First operand 13561 states and 28483 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:33,044 INFO L93 Difference]: Finished difference Result 17793 states and 37110 transitions. [2022-11-26 00:26:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:26:33,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:33,067 INFO L225 Difference]: With dead ends: 17793 [2022-11-26 00:26:33,067 INFO L226 Difference]: Without dead ends: 17793 [2022-11-26 00:26:33,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:26:33,068 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 263 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:33,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 256 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 00:26:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17793 states. [2022-11-26 00:26:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17793 to 13550. [2022-11-26 00:26:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13507 states have (on average 2.107129636484786) internal successors, (28461), 13549 states have internal predecessors, (28461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 28461 transitions. [2022-11-26 00:26:33,250 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 28461 transitions. Word has length 31 [2022-11-26 00:26:33,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:33,250 INFO L495 AbstractCegarLoop]: Abstraction has 13550 states and 28461 transitions. [2022-11-26 00:26:33,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 28461 transitions. [2022-11-26 00:26:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:33,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:33,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:33,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:33,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:33,454 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:33,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash 487850800, now seen corresponding path program 40 times [2022-11-26 00:26:33,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:33,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979027983] [2022-11-26 00:26:33,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:26:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:33,456 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:33,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-26 00:26:33,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:26:33,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:33,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:26:33,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:33,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:33,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:33,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:33,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:26:33,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:34,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:34,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:34,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:26:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:26:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:26:34,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:26:34,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:26:34,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:26:34,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:26:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:26:34,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:26:34,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:34,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:34,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:34,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:34,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:34,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:34,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:34,898 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:34,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:34,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:34,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:34,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979027983] [2022-11-26 00:26:34,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979027983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:34,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:34,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884911993] [2022-11-26 00:26:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:34,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:34,950 INFO L87 Difference]: Start difference. First operand 13550 states and 28461 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:42,043 INFO L93 Difference]: Finished difference Result 17899 states and 37322 transitions. [2022-11-26 00:26:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:26:42,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:42,067 INFO L225 Difference]: With dead ends: 17899 [2022-11-26 00:26:42,067 INFO L226 Difference]: Without dead ends: 17899 [2022-11-26 00:26:42,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:26:42,067 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 293 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:42,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 254 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:26:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17899 states. [2022-11-26 00:26:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17899 to 13539. [2022-11-26 00:26:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13496 states have (on average 2.10721695317131) internal successors, (28439), 13538 states have internal predecessors, (28439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 28439 transitions. [2022-11-26 00:26:42,314 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 28439 transitions. Word has length 31 [2022-11-26 00:26:42,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:42,314 INFO L495 AbstractCegarLoop]: Abstraction has 13539 states and 28439 transitions. [2022-11-26 00:26:42,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:42,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 28439 transitions. [2022-11-26 00:26:42,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:42,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:42,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:42,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:42,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:42,517 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:42,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1640286786, now seen corresponding path program 41 times [2022-11-26 00:26:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:42,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517716589] [2022-11-26 00:26:42,519 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:26:42,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:42,519 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:42,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-11-26 00:26:42,946 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:26:42,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:42,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:26:42,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:42,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:42,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:42,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:42,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:26:42,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:43,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:43,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:43,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:43,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:26:43,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:43,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:43,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:43,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:26:43,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:43,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:43,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:43,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:44,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:26:44,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:44,116 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:44,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:44,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:44,167 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:44,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517716589] [2022-11-26 00:26:44,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517716589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:44,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:44,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144374328] [2022-11-26 00:26:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:44,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:44,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:44,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:44,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:44,168 INFO L87 Difference]: Start difference. First operand 13539 states and 28439 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:49,484 INFO L93 Difference]: Finished difference Result 17696 states and 36915 transitions. [2022-11-26 00:26:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:26:49,485 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:49,507 INFO L225 Difference]: With dead ends: 17696 [2022-11-26 00:26:49,507 INFO L226 Difference]: Without dead ends: 17696 [2022-11-26 00:26:49,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:26:49,508 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 301 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:49,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 247 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-26 00:26:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17696 states. [2022-11-26 00:26:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17696 to 13551. [2022-11-26 00:26:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 13508 states have (on average 2.1071217056559077) internal successors, (28463), 13550 states have internal predecessors, (28463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 28463 transitions. [2022-11-26 00:26:49,697 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 28463 transitions. Word has length 31 [2022-11-26 00:26:49,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:49,698 INFO L495 AbstractCegarLoop]: Abstraction has 13551 states and 28463 transitions. [2022-11-26 00:26:49,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 28463 transitions. [2022-11-26 00:26:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:49,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:49,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:49,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Ended with exit code 0 [2022-11-26 00:26:49,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:49,901 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash 221767918, now seen corresponding path program 42 times [2022-11-26 00:26:49,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:49,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908310347] [2022-11-26 00:26:49,902 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:26:49,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:49,903 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:49,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-26 00:26:50,335 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:26:50,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:50,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:26:50,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:26:50,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:50,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:26:50,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:26:50,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:26:50,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:26:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:50,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:50,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:26:50,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:50,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:26:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:51,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:26:51,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:26:51,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:51,290 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:51,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:26:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:51,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:51,342 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:51,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908310347] [2022-11-26 00:26:51,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908310347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:51,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:51,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:26:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627279322] [2022-11-26 00:26:51,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:26:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:26:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:26:51,344 INFO L87 Difference]: Start difference. First operand 13551 states and 28463 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:57,706 INFO L93 Difference]: Finished difference Result 17740 states and 37004 transitions. [2022-11-26 00:26:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:26:57,706 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:26:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:57,729 INFO L225 Difference]: With dead ends: 17740 [2022-11-26 00:26:57,729 INFO L226 Difference]: Without dead ends: 17740 [2022-11-26 00:26:57,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:26:57,730 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 258 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:57,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 299 Invalid, 2661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:26:57,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17740 states. [2022-11-26 00:26:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17740 to 13537. [2022-11-26 00:26:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13537 states, 13494 states have (on average 2.107232844227064) internal successors, (28435), 13536 states have internal predecessors, (28435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13537 states to 13537 states and 28435 transitions. [2022-11-26 00:26:57,916 INFO L78 Accepts]: Start accepts. Automaton has 13537 states and 28435 transitions. Word has length 31 [2022-11-26 00:26:57,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:57,917 INFO L495 AbstractCegarLoop]: Abstraction has 13537 states and 28435 transitions. [2022-11-26 00:26:57,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:26:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand 13537 states and 28435 transitions. [2022-11-26 00:26:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:26:57,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:57,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:57,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:58,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:58,134 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:26:58,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:58,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1904718400, now seen corresponding path program 15 times [2022-11-26 00:26:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551710506] [2022-11-26 00:26:58,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:26:58,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:26:58,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:58,136 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:26:58,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-26 00:26:58,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:26:58,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:26:58,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 00:26:58,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:58,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:58,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:26:58,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:58,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:26:58,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:26:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:59,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:26:59,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-26 00:26:59,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-26 00:26:59,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-26 00:26:59,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-26 00:26:59,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:59,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:59,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:59,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:59,729 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:26:59,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-26 00:26:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:26:59,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:59,839 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:59,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551710506] [2022-11-26 00:26:59,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551710506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:59,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:59,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:26:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030190734] [2022-11-26 00:26:59,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:59,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:26:59,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:59,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:26:59,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:26:59,841 INFO L87 Difference]: Start difference. First operand 13537 states and 28435 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:09,590 INFO L93 Difference]: Finished difference Result 17258 states and 35981 transitions. [2022-11-26 00:27:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:27:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:09,669 INFO L225 Difference]: With dead ends: 17258 [2022-11-26 00:27:09,669 INFO L226 Difference]: Without dead ends: 17258 [2022-11-26 00:27:09,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:27:09,669 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 459 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 3475 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:09,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1253 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3475 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-26 00:27:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17258 states. [2022-11-26 00:27:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17258 to 13839. [2022-11-26 00:27:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13839 states, 13796 states have (on average 2.1062626848361843) internal successors, (29058), 13838 states have internal predecessors, (29058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13839 states to 13839 states and 29058 transitions. [2022-11-26 00:27:09,836 INFO L78 Accepts]: Start accepts. Automaton has 13839 states and 29058 transitions. Word has length 31 [2022-11-26 00:27:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 13839 states and 29058 transitions. [2022-11-26 00:27:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 13839 states and 29058 transitions. [2022-11-26 00:27:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:09,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:09,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:09,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Ended with exit code 0 [2022-11-26 00:27:10,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:10,040 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:10,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:10,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1949473715, now seen corresponding path program 15 times [2022-11-26 00:27:10,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:10,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474190426] [2022-11-26 00:27:10,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:27:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:10,042 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:10,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-26 00:27:10,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:27:10,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:27:10,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-26 00:27:10,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:10,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:27:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:10,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:27:10,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:27:11,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:27:11,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-26 00:27:11,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-26 00:27:11,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-26 00:27:11,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:27:11,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:11,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:11,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:11,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:11,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:11,761 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:27:11,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:11,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:11,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474190426] [2022-11-26 00:27:11,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474190426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:11,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:11,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-26 00:27:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899637520] [2022-11-26 00:27:11,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:11,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:27:11,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:11,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:27:11,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:27:11,827 INFO L87 Difference]: Start difference. First operand 13839 states and 29058 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:22,531 INFO L93 Difference]: Finished difference Result 16823 states and 35095 transitions. [2022-11-26 00:27:22,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:27:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:22,554 INFO L225 Difference]: With dead ends: 16823 [2022-11-26 00:27:22,554 INFO L226 Difference]: Without dead ends: 16823 [2022-11-26 00:27:22,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-11-26 00:27:22,555 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 385 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 3561 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 3684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:22,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 709 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3561 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-26 00:27:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16823 states. [2022-11-26 00:27:22,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16823 to 14231. [2022-11-26 00:27:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 14188 states have (on average 2.10558218212574) internal successors, (29874), 14230 states have internal predecessors, (29874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 29874 transitions. [2022-11-26 00:27:22,747 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 29874 transitions. Word has length 31 [2022-11-26 00:27:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:22,748 INFO L495 AbstractCegarLoop]: Abstraction has 14231 states and 29874 transitions. [2022-11-26 00:27:22,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:22,748 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 29874 transitions. [2022-11-26 00:27:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:22,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:22,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:22,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:22,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:22,952 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2143069184, now seen corresponding path program 43 times [2022-11-26 00:27:22,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:22,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751023232] [2022-11-26 00:27:22,953 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:27:22,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:22,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:22,954 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:22,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-26 00:27:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:23,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:27:23,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:23,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:27:23,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:27:23,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:27:23,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:27:23,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:27:23,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:27:23,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:27:23,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:27:23,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:23,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:23,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:23,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:24,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:24,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:24,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:27:24,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:24,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:24,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:24,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751023232] [2022-11-26 00:27:24,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751023232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:24,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:24,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:27:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504528204] [2022-11-26 00:27:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:24,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:27:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:27:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:27:24,580 INFO L87 Difference]: Start difference. First operand 14231 states and 29874 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:30,960 INFO L93 Difference]: Finished difference Result 18001 states and 37558 transitions. [2022-11-26 00:27:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:27:30,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:30,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:30,984 INFO L225 Difference]: With dead ends: 18001 [2022-11-26 00:27:30,984 INFO L226 Difference]: Without dead ends: 18001 [2022-11-26 00:27:30,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:27:30,984 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 217 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:30,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 298 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:27:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18001 states. [2022-11-26 00:27:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18001 to 14242. [2022-11-26 00:27:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14242 states, 14199 states have (on average 2.105500387351222) internal successors, (29896), 14241 states have internal predecessors, (29896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14242 states to 14242 states and 29896 transitions. [2022-11-26 00:27:31,170 INFO L78 Accepts]: Start accepts. Automaton has 14242 states and 29896 transitions. Word has length 31 [2022-11-26 00:27:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:31,170 INFO L495 AbstractCegarLoop]: Abstraction has 14242 states and 29896 transitions. [2022-11-26 00:27:31,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14242 states and 29896 transitions. [2022-11-26 00:27:31,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:31,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:31,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:31,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:31,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:31,374 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:31,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash -289843408, now seen corresponding path program 44 times [2022-11-26 00:27:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:31,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729006706] [2022-11-26 00:27:31,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:27:31,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:31,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:31,376 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:31,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-26 00:27:31,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:27:31,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:27:31,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 00:27:31,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:31,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:31,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:27:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:31,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:27:31,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:27:31,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:27:32,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:27:32,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:27:32,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:27:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:27:32,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:27:32,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:27:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:27:32,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:27:32,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:32,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:27:32,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:32,879 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:27:32,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:32,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:32,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:32,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729006706] [2022-11-26 00:27:32,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729006706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:32,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:32,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:27:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132251654] [2022-11-26 00:27:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:32,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:27:32,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:27:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:27:32,936 INFO L87 Difference]: Start difference. First operand 14242 states and 29896 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:40,456 INFO L93 Difference]: Finished difference Result 18060 states and 37677 transitions. [2022-11-26 00:27:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:27:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:40,481 INFO L225 Difference]: With dead ends: 18060 [2022-11-26 00:27:40,482 INFO L226 Difference]: Without dead ends: 18060 [2022-11-26 00:27:40,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:27:40,482 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 264 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:40,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 299 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:27:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18060 states. [2022-11-26 00:27:40,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18060 to 14231. [2022-11-26 00:27:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 14188 states have (on average 2.10558218212574) internal successors, (29874), 14230 states have internal predecessors, (29874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 29874 transitions. [2022-11-26 00:27:40,690 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 29874 transitions. Word has length 31 [2022-11-26 00:27:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:40,690 INFO L495 AbstractCegarLoop]: Abstraction has 14231 states and 29874 transitions. [2022-11-26 00:27:40,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 29874 transitions. [2022-11-26 00:27:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:40,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:40,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:40,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:40,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:40,897 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:40,897 INFO L85 PathProgramCache]: Analyzing trace with hash -609958924, now seen corresponding path program 45 times [2022-11-26 00:27:40,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:40,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806491419] [2022-11-26 00:27:40,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:27:40,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:40,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:40,898 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:40,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-11-26 00:27:41,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:27:41,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:27:41,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:27:41,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:41,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:27:41,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:27:41,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:27:41,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:27:41,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:27:41,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:27:41,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:27:41,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:27:41,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:27:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:27:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:27:41,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:27:41,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-26 00:27:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:41,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-26 00:27:42,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:27:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:27:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:27:42,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:27:42,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:42,360 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:27:42,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:42,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:42,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:42,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806491419] [2022-11-26 00:27:42,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806491419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:42,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:42,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:27:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463967615] [2022-11-26 00:27:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:42,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:27:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:27:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:27:42,420 INFO L87 Difference]: Start difference. First operand 14231 states and 29874 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:50,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:50,556 INFO L93 Difference]: Finished difference Result 17942 states and 37434 transitions. [2022-11-26 00:27:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:27:50,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:50,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:50,581 INFO L225 Difference]: With dead ends: 17942 [2022-11-26 00:27:50,581 INFO L226 Difference]: Without dead ends: 17942 [2022-11-26 00:27:50,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=233, Invalid=523, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:27:50,581 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 277 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 2826 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 3061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 2826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:50,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 255 Invalid, 3061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 2826 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 00:27:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17942 states. [2022-11-26 00:27:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17942 to 14213. [2022-11-26 00:27:50,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14213 states, 14170 states have (on average 2.1057163020465772) internal successors, (29838), 14212 states have internal predecessors, (29838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14213 states to 14213 states and 29838 transitions. [2022-11-26 00:27:50,826 INFO L78 Accepts]: Start accepts. Automaton has 14213 states and 29838 transitions. Word has length 31 [2022-11-26 00:27:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:50,826 INFO L495 AbstractCegarLoop]: Abstraction has 14213 states and 29838 transitions. [2022-11-26 00:27:50,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 14213 states and 29838 transitions. [2022-11-26 00:27:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:50,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:50,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:50,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:51,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:51,030 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:51,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1556870786, now seen corresponding path program 46 times [2022-11-26 00:27:51,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:51,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528954779] [2022-11-26 00:27:51,031 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:27:51,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:51,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:51,032 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:51,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-26 00:27:51,492 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:27:51,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:27:51,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-26 00:27:51,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:51,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:27:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:27:51,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:27:51,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:27:51,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:27:51,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:27:51,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:27:51,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:27:51,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:51,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:52,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:52,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:52,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:27:52,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:52,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:27:52,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:27:52,606 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:27:52,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:27:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:52,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:52,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:52,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528954779] [2022-11-26 00:27:52,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528954779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:52,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:52,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:27:52,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795188411] [2022-11-26 00:27:52,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:52,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:27:52,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:27:52,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:27:52,664 INFO L87 Difference]: Start difference. First operand 14213 states and 29838 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:59,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:59,270 INFO L93 Difference]: Finished difference Result 18407 states and 38381 transitions. [2022-11-26 00:27:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:27:59,271 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:27:59,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:59,296 INFO L225 Difference]: With dead ends: 18407 [2022-11-26 00:27:59,296 INFO L226 Difference]: Without dead ends: 18407 [2022-11-26 00:27:59,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=186, Invalid=414, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:27:59,296 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 227 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:59,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 294 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:27:59,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18407 states. [2022-11-26 00:27:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18407 to 14225. [2022-11-26 00:27:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14225 states, 14182 states have (on average 2.1056268509378087) internal successors, (29862), 14224 states have internal predecessors, (29862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14225 states to 14225 states and 29862 transitions. [2022-11-26 00:27:59,502 INFO L78 Accepts]: Start accepts. Automaton has 14225 states and 29862 transitions. Word has length 31 [2022-11-26 00:27:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:59,502 INFO L495 AbstractCegarLoop]: Abstraction has 14225 states and 29862 transitions. [2022-11-26 00:27:59,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:27:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 14225 states and 29862 transitions. [2022-11-26 00:27:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:27:59,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:59,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:59,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:59,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:59,706 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:27:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash -876041806, now seen corresponding path program 47 times [2022-11-26 00:27:59,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:59,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246579692] [2022-11-26 00:27:59,707 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-26 00:27:59,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:59,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:59,708 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:27:59,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2022-11-26 00:28:00,191 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:28:00,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:28:00,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:28:00,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:00,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:28:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:28:00,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:28:00,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:28:00,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:28:00,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:28:00,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:28:00,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:28:00,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:00,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:00,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:00,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:00,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:00,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:00,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:00,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:01,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:28:01,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:01,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:01,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:28:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:01,305 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:28:01,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:28:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:01,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:01,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:28:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246579692] [2022-11-26 00:28:01,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246579692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:01,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:01,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:28:01,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690360015] [2022-11-26 00:28:01,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:01,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:28:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:28:01,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:28:01,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:28:01,374 INFO L87 Difference]: Start difference. First operand 14225 states and 29862 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:08,157 INFO L93 Difference]: Finished difference Result 18451 states and 38470 transitions. [2022-11-26 00:28:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:28:08,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:28:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:08,194 INFO L225 Difference]: With dead ends: 18451 [2022-11-26 00:28:08,194 INFO L226 Difference]: Without dead ends: 18451 [2022-11-26 00:28:08,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=214, Invalid=488, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:28:08,195 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 282 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:08,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 252 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:28:08,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18451 states. [2022-11-26 00:28:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18451 to 14212. [2022-11-26 00:28:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14212 states, 14169 states have (on average 2.1057237631448937) internal successors, (29836), 14211 states have internal predecessors, (29836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14212 states to 14212 states and 29836 transitions. [2022-11-26 00:28:08,490 INFO L78 Accepts]: Start accepts. Automaton has 14212 states and 29836 transitions. Word has length 31 [2022-11-26 00:28:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:08,490 INFO L495 AbstractCegarLoop]: Abstraction has 14212 states and 29836 transitions. [2022-11-26 00:28:08,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 14212 states and 29836 transitions. [2022-11-26 00:28:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:28:08,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:08,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:08,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2022-11-26 00:28:08,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:28:08,694 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:28:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash -747181602, now seen corresponding path program 48 times [2022-11-26 00:28:08,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:28:08,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173520444] [2022-11-26 00:28:08,695 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-26 00:28:08,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:28:08,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:28:08,696 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:28:08,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2022-11-26 00:28:09,201 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-26 00:28:09,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:28:09,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-26 00:28:09,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:09,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:28:09,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:28:09,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:28:09,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:28:09,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:28:09,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:28:09,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:28:09,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:28:09,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:28:09,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:09,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:09,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:09,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:09,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:28:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:28:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-26 00:28:10,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:10,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:28:10,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:10,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:10,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-26 00:28:10,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:10,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:28:10,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:28:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:10,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:10,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:28:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173520444] [2022-11-26 00:28:10,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173520444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:10,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:10,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:28:10,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111547784] [2022-11-26 00:28:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:10,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:28:10,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:28:10,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:28:10,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:28:10,456 INFO L87 Difference]: Start difference. First operand 14212 states and 29836 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:16,889 INFO L93 Difference]: Finished difference Result 17925 states and 37406 transitions. [2022-11-26 00:28:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:28:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-26 00:28:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:16,916 INFO L225 Difference]: With dead ends: 17925 [2022-11-26 00:28:16,916 INFO L226 Difference]: Without dead ends: 17925 [2022-11-26 00:28:16,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:28:16,916 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 237 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:16,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 291 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:28:16,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17925 states. [2022-11-26 00:28:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17925 to 14200. [2022-11-26 00:28:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14200 states, 14157 states have (on average 2.105813378540651) internal successors, (29812), 14199 states have internal predecessors, (29812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14200 states to 14200 states and 29812 transitions. [2022-11-26 00:28:17,133 INFO L78 Accepts]: Start accepts. Automaton has 14200 states and 29812 transitions. Word has length 31 [2022-11-26 00:28:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:17,133 INFO L495 AbstractCegarLoop]: Abstraction has 14200 states and 29812 transitions. [2022-11-26 00:28:17,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14200 states and 29812 transitions. [2022-11-26 00:28:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:28:17,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:17,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:17,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2022-11-26 00:28:17,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:28:17,338 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-26 00:28:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:17,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1114873102, now seen corresponding path program 49 times [2022-11-26 00:28:17,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:28:17,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836768226] [2022-11-26 00:28:17,338 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:28:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:28:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:28:17,339 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:28:17,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd56e0-c171-4e8f-b96b-a74b85764904/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-26 00:28:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:17,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-26 00:28:17,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:17,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:17,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-26 00:28:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:17,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:28:17,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:28:17,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:28:17,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-26 00:28:18,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-26 00:28:18,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:28:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:28:18,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-26 00:28:18,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-26 00:28:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-26 00:28:18,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-26 00:28:18,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,859 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:28:18,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-26 00:28:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:18,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:18,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:28:18,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836768226] [2022-11-26 00:28:18,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836768226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:18,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:18,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:28:18,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472524668] [2022-11-26 00:28:18,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:18,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:28:18,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:28:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:28:18,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:28:18,915 INFO L87 Difference]: Start difference. First operand 14200 states and 29812 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)