./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- 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-b5237d8 [2022-11-22 00:26:03,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:26:03,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:26:03,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:26:03,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:26:03,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:26:03,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:26:03,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:26:03,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:26:03,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:26:03,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:26:03,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:26:03,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:26:03,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:26:03,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:26:03,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:26:03,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:26:03,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:26:03,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:26:03,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:26:03,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:26:03,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:26:03,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:26:03,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:26:03,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:26:03,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:26:03,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:26:03,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:26:03,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:26:03,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:26:03,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:26:03,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:26:03,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:26:03,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:26:03,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:26:03,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:26:03,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:26:03,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:26:03,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:26:03,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:26:03,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:26:03,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:26:03,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:26:03,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:26:03,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:26:03,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:26:03,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:26:03,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:26:03,509 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:26:03,509 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:26:03,509 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:26:03,510 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:26:03,510 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:26:03,510 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:26:03,510 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:26:03,510 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:26:03,511 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:26:03,511 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:26:03,511 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:26:03,511 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:26:03,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:26:03,512 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:26:03,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:26:03,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:26:03,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:26:03,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:26:03,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:26:03,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:26:03,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:26:03,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:26:03,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:26:03,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:26:03,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:26:03,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:26:03,515 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:26:03,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:26:03,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:26:03,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:26:03,516 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2022-11-22 00:26:03,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:26:03,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:26:03,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:26:03,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:26:03,859 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:26:03,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-22 00:26:06,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:26:07,290 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:26:07,295 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-22 00:26:07,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/data/09c93ca3d/8130ea3c6a6e4715bf5b3f73f11111e9/FLAG72387ae94 [2022-11-22 00:26:07,325 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/data/09c93ca3d/8130ea3c6a6e4715bf5b3f73f11111e9 [2022-11-22 00:26:07,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:26:07,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:26:07,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:26:07,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:26:07,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:26:07,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586bd114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07, skipping insertion in model container [2022-11-22 00:26:07,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:26:07,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:26:07,775 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-22 00:26:07,788 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-22 00:26:07,790 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-22 00:26:07,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:26:07,807 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:26:07,886 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-22 00:26:07,890 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-22 00:26:07,891 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_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-22 00:26:07,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:26:07,921 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:26:07,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07 WrapperNode [2022-11-22 00:26:07,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:26:07,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:26:07,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:26:07,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:26:07,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,971 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2022-11-22 00:26:07,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:26:07,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:26:07,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:26:07,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:26:07,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:07,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:08,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:08,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:08,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:26:08,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:26:08,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:26:08,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:26:08,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (1/1) ... [2022-11-22 00:26:08,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:26:08,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:26:08,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:26:08,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:26:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-22 00:26:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-22 00:26:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-22 00:26:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:26:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:26:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:26:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:26:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-22 00:26:08,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-22 00:26:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:26:08,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:26:08,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:26:08,297 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:26:08,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:26:08,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:26:08,820 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 00:26:08,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:26:08 BoogieIcfgContainer [2022-11-22 00:26:08,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:26:08,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:26:08,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:26:08,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:26:08,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:26:07" (1/3) ... [2022-11-22 00:26:08,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b558f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:26:08, skipping insertion in model container [2022-11-22 00:26:08,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:07" (2/3) ... [2022-11-22 00:26:08,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b558f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:26:08, skipping insertion in model container [2022-11-22 00:26:08,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:26:08" (3/3) ... [2022-11-22 00:26:08,833 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2022-11-22 00:26:08,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:26:08,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:26:08,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:26:08,914 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;@3b3d6daf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:26:08,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:26:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-22 00:26:08,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 00:26:08,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:08,929 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:26:08,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2027166430, now seen corresponding path program 1 times [2022-11-22 00:26:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023963921] [2022-11-22 00:26:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:26:09,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:09,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023963921] [2022-11-22 00:26:09,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023963921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:09,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:09,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:26:09,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671037456] [2022-11-22 00:26:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:09,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:26:09,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:26:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:26:09,353 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 00:26:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:09,495 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions. [2022-11-22 00:26:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:26:09,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-22 00:26:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:09,511 INFO L225 Difference]: With dead ends: 88 [2022-11-22 00:26:09,511 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 00:26:09,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:26:09,523 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:09,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:26:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 00:26:09,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-22 00:26:09,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-22 00:26:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-22 00:26:09,632 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19 [2022-11-22 00:26:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:09,632 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-22 00:26:09,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 00:26:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-22 00:26:09,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 00:26:09,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:09,637 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:26:09,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:26:09,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1652159754, now seen corresponding path program 1 times [2022-11-22 00:26:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:09,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487734806] [2022-11-22 00:26:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:26:10,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:10,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487734806] [2022-11-22 00:26:10,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487734806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:10,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:10,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:26:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440062409] [2022-11-22 00:26:10,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:10,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:26:10,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:26:10,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:26:10,121 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 00:26:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:10,527 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2022-11-22 00:26:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:26:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-22 00:26:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:10,530 INFO L225 Difference]: With dead ends: 133 [2022-11-22 00:26:10,530 INFO L226 Difference]: Without dead ends: 92 [2022-11-22 00:26:10,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:26:10,533 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:10,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:26:10,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-22 00:26:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 71. [2022-11-22 00:26:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 49 states have internal predecessors, (55), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-22 00:26:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2022-11-22 00:26:10,552 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 20 [2022-11-22 00:26:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:10,553 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2022-11-22 00:26:10,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 00:26:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2022-11-22 00:26:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-22 00:26:10,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:10,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:26:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:26:10,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:10,558 INFO L85 PathProgramCache]: Analyzing trace with hash -194427046, now seen corresponding path program 1 times [2022-11-22 00:26:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:10,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371663648] [2022-11-22 00:26:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:10,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:26:17,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:17,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371663648] [2022-11-22 00:26:17,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371663648] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:26:17,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262460243] [2022-11-22 00:26:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:17,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:26:17,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:26:17,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:26:17,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:26:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:17,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-22 00:26:17,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:26:17,728 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:26:17,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:26:18,041 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:26:18,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 00:26:18,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3 [2022-11-22 00:26:18,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3 [2022-11-22 00:26:20,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,435 INFO L321 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2022-11-22 00:26:20,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 155 [2022-11-22 00:26:20,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,488 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 41 treesize of output 28 [2022-11-22 00:26:20,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 80 [2022-11-22 00:26:20,537 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-22 00:26:20,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-22 00:26:20,568 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-22 00:26:20,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 79 treesize of output 71 [2022-11-22 00:26:20,587 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:20,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 94 treesize of output 74 [2022-11-22 00:26:20,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:20,616 INFO L321 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2022-11-22 00:26:20,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 00:26:20,629 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 40 treesize of output 32 [2022-11-22 00:26:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:26:22,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:26:25,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262460243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:26:25,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259105978] [2022-11-22 00:26:25,299 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-22 00:26:25,299 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:26:25,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:26:25,309 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:26:25,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:26:25,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 00:26:25,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:26:25,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:25,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:25,601 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:25,604 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:25,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:25,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:25,742 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:25,745 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:25,969 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:26:25,979 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:26:25,989 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:26:26,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,127 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-22 00:26:26,128 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-22 00:26:26,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,234 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-22 00:26:26,235 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-22 00:26:26,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,362 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-22 00:26:26,363 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 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-22 00:26:26,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:26,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 00:26:26,451 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:26,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 00:26:26,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:26,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 00:26:26,529 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:26,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 00:26:26,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:26,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:26,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:26:26,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:26:26,624 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:26,626 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:26,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:26:26,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:26,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 00:26:26,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:26,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-22 00:26:26,805 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:26,812 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:26,815 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:26:27,049 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 15 for LOIs [2022-11-22 00:26:27,257 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:26:27,278 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:26:27,292 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:26:27,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:26:27,380 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:27,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 00:26:27,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:26:27,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:27,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 00:26:27,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:26:27,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:27,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 00:26:27,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:26:27,523 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:26:27,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 00:26:27,740 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 57 for LOIs [2022-11-22 00:26:27,796 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 30 for LOIs [2022-11-22 00:26:27,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 00:26:27,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:26:27,840 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 23 for LOIs [2022-11-22 00:26:27,899 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:26:37,423 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '746#(and (= |mutex_lock_#in~m#1.base| |mutex_lock_~m#1.base|) (= |~#mutexes~0.base| 3) (<= |mutex_lock_~m#1.offset| 0) (<= 0 |mutex_lock_~m#1.offset|) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (= |mutex_lock_#in~m#1.offset| |mutex_lock_~m#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:26:37,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:26:37,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:26:37,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-22 00:26:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435984582] [2022-11-22 00:26:37,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 00:26:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-22 00:26:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-22 00:26:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=6372, Unknown=19, NotChecked=0, Total=6806 [2022-11-22 00:26:37,429 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-22 00:26:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:51,343 INFO L93 Difference]: Finished difference Result 186 states and 237 transitions. [2022-11-22 00:26:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-22 00:26:51,344 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 47 [2022-11-22 00:26:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:51,346 INFO L225 Difference]: With dead ends: 186 [2022-11-22 00:26:51,347 INFO L226 Difference]: Without dead ends: 119 [2022-11-22 00:26:51,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3159 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=867, Invalid=11543, Unknown=22, NotChecked=0, Total=12432 [2022-11-22 00:26:51,353 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 441 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 173 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:51,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 884 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2314 Invalid, 4 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 00:26:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-22 00:26:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 80. [2022-11-22 00:26:51,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.196078431372549) internal successors, (61), 56 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-22 00:26:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2022-11-22 00:26:51,389 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 47 [2022-11-22 00:26:51,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:51,390 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2022-11-22 00:26:51,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-22 00:26:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2022-11-22 00:26:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 00:26:51,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:51,396 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:26:51,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:26:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:26:51,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:26:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -968639607, now seen corresponding path program 1 times [2022-11-22 00:26:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:51,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452251045] [2022-11-22 00:26:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:26:56,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:56,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452251045] [2022-11-22 00:26:56,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452251045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:26:56,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829898038] [2022-11-22 00:26:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:56,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:26:56,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:26:56,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:26:56,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c0b5b7a-a2b1-45f7-9ec9-885b63ee81c9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:26:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:56,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 196 conjunts are in the unsatisfiable core [2022-11-22 00:26:56,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:26:56,624 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:26:56,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:26:56,874 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:26:56,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:26:56,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3 [2022-11-22 00:26:56,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3 [2022-11-22 00:26:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:59,522 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-22 00:26:59,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 198 [2022-11-22 00:26:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:59,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:59,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:26:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:26:59,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 53 [2022-11-22 00:27:11,043 WARN L233 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 668 DAG size of output: 88 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 00:27:11,044 INFO L321 Elim1Store]: treesize reduction 4982, result has 3.9 percent of original size [2022-11-22 00:27:11,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 17 new quantified variables, introduced 81 case distinctions, treesize of input 18309 treesize of output 15826 [2022-11-22 00:27:12,013 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:27:12,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 11330 treesize of output 10211 [2022-11-22 00:27:12,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:12,805 INFO L217 Elim1Store]: Index analysis took 209 ms [2022-11-22 00:27:13,122 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:27:13,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 126 [2022-11-22 00:27:13,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 37 treesize of output 44 [2022-11-22 00:27:14,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 190 treesize of output 153 [2022-11-22 00:27:41,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 165 [2022-11-22 00:27:43,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:43,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:43,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:43,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:44,132 INFO L321 Elim1Store]: treesize reduction 234, result has 20.7 percent of original size [2022-11-22 00:27:44,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1655 treesize of output 1907 [2022-11-22 00:27:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,407 INFO L321 Elim1Store]: treesize reduction 241, result has 34.5 percent of original size [2022-11-22 00:27:51,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2137 treesize of output 177 [2022-11-22 00:27:51,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:51,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:51,720 INFO L321 Elim1Store]: treesize reduction 98, result has 8.4 percent of original size [2022-11-22 00:27:51,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 6402 treesize of output 3202 [2022-11-22 00:27:52,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:52,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:52,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:52,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:52,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:52,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 603 treesize of output 126 [2022-11-22 00:27:54,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14430 treesize of output 14220 [2022-11-22 00:27:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:55,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:27:57,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:27:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:28:00,964 INFO L321 Elim1Store]: treesize reduction 1276, result has 6.7 percent of original size [2022-11-22 00:28:00,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 35645127983917 treesize of output 35643517325226