./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/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_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/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 64bit --witnessprinter.graph.data.programhash b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd --- 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 01:09:08,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:08,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:08,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:08,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:08,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:08,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:08,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:08,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:08,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:08,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:08,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:08,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:08,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:08,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:08,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:08,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:08,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:08,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:08,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:08,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:08,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:08,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:08,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:08,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:08,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:08,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:08,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:08,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:08,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:08,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:08,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:08,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:08,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:08,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:08,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:08,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:08,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:08,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:08,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:08,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:08,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:09:08,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:08,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:08,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:08,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:08,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:08,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:08,973 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:08,974 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:08,974 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:08,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:08,975 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:08,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:08,976 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:08,976 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:08,976 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:08,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:08,977 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:08,977 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:08,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:08,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:08,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:08,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:08,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:08,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:08,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:08,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:08,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:08,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:08,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:08,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:08,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:08,981 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:08,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:08,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:08,981 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:08,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:08,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:08,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:08,982 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_b2829db8-d115-4a02-a21a-1ab4b3e482f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd [2022-11-22 01:09:09,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:09,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:09,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:09,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:09,311 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:09,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2022-11-22 01:09:12,294 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:13,319 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:13,320 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2022-11-22 01:09:13,413 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/data/b758cdbc7/ceb4b5a84b7740ddb8dfe728cdf49ac0/FLAGa28c4c537 [2022-11-22 01:09:13,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/data/b758cdbc7/ceb4b5a84b7740ddb8dfe728cdf49ac0 [2022-11-22 01:09:13,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:13,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:13,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:13,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:13,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:13,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:13" (1/1) ... [2022-11-22 01:09:13,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3a221a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:13, skipping insertion in model container [2022-11-22 01:09:13,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:13" (1/1) ... [2022-11-22 01:09:13,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:13,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:22,974 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_b2829db8-d115-4a02-a21a-1ab4b3e482f1/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2022-11-22 01:09:23,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:23,548 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:24,742 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_b2829db8-d115-4a02-a21a-1ab4b3e482f1/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2022-11-22 01:09:24,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:25,265 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:25,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25 WrapperNode [2022-11-22 01:09:25,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:25,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:25,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:25,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:25,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:25,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:25,916 INFO L138 Inliner]: procedures = 905, calls = 10026, calls flagged for inlining = 323, calls inlined = 188, statements flattened = 12732 [2022-11-22 01:09:25,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:25,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:25,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:25,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:25,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:25,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:25,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:25,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:26,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:26,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:26,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:26,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (1/1) ... [2022-11-22 01:09:26,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:26,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:27,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:27,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM_page [2022-11-22 01:09:27,062 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM_page [2022-11-22 01:09:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-22 01:09:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2022-11-22 01:09:27,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2022-11-22 01:09:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_status_to_errno [2022-11-22 01:09:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_status_to_errno [2022-11-22 01:09:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icms [2022-11-22 01:09:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icms [2022-11-22 01:09:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:09:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:09:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:09:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:09:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:09:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:09:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_key [2022-11-22 01:09:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_key [2022-11-22 01:09:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure key_to_hw_index [2022-11-22 01:09:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure key_to_hw_index [2022-11-22 01:09:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:09:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:09:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-22 01:09:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-22 01:09:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:09:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:09:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_icm [2022-11-22 01:09:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_icm [2022-11-22 01:09:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:09:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:09:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uarc_virt [2022-11-22 01:09:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uarc_virt [2022-11-22 01:09:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-11-22 01:09:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-11-22 01:09:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:09:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:09:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_ah [2022-11-22 01:09:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_ah [2022-11-22 01:09:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:09:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:09:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_zero [2022-11-22 01:09:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_zero [2022-11-22 01:09:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_cleanup [2022-11-22 01:09:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_cleanup [2022-11-22 01:09:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_device [2022-11-22 01:09:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_device [2022-11-22 01:09:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:09:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:09:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ib_query_port [2022-11-22 01:09:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_query_port [2022-11-22 01:09:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_region [2022-11-22 01:09:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_region [2022-11-22 01:09:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:09:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:09:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-22 01:09:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-22 01:09:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_pcie_cap [2022-11-22 01:09:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_pcie_cap [2022-11-22 01:09:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CLOSE_IB [2022-11-22 01:09:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CLOSE_IB [2022-11-22 01:09:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure clear_page [2022-11-22 01:09:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_page [2022-11-22 01:09:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_alloc [2022-11-22 01:09:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_alloc [2022-11-22 01:09:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:09:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_init_one [2022-11-22 01:09:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_init_one [2022-11-22 01:09:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_create_eq [2022-11-22 01:09:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_create_eq [2022-11-22 01:09:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt [2022-11-22 01:09:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt [2022-11-22 01:09:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm_table [2022-11-22 01:09:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm_table [2022-11-22 01:09:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_catas_cleanup [2022-11-22 01:09:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_catas_cleanup [2022-11-22 01:09:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure hw_index_to_key [2022-11-22 01:09:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_index_to_key [2022-11-22 01:09:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:09:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:09:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64_raw [2022-11-22 01:09:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64_raw [2022-11-22 01:09:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:09:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:09:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_use_polling [2022-11-22 01:09:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_use_polling [2022-11-22 01:09:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-22 01:09:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-22 01:09:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm_table [2022-11-22 01:09:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm_table [2022-11-22 01:09:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:09:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt_range [2022-11-22 01:09:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt_range [2022-11-22 01:09:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 01:09:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 01:09:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:09:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:09:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 01:09:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 01:09:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:09:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-22 01:09:27,077 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-22 01:09:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_free [2022-11-22 01:09:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_free [2022-11-22 01:09:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_cleanup [2022-11-22 01:09:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_cleanup [2022-11-22 01:09:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_eq_req_not [2022-11-22 01:09:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_eq_req_not [2022-11-22 01:09:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:09:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:09:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2022-11-22 01:09:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2022-11-22 01:09:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:09:27,079 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:09:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_cleanup [2022-11-22 01:09:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_cleanup [2022-11-22 01:09:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_eq_table [2022-11-22 01:09:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_eq_table [2022-11-22 01:09:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:09:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:09:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:27,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:09:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:09:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:09:27,081 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:09:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:09:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:09:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:09:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_av_table [2022-11-22 01:09:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_av_table [2022-11-22 01:09:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm [2022-11-22 01:09:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm [2022-11-22 01:09:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_alloc_mtt [2022-11-22 01:09:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_alloc_mtt [2022-11-22 01:09:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-11-22 01:09:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-11-22 01:09:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:09:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:09:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:09:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:09:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_is_memfree [2022-11-22 01:09:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_is_memfree [2022-11-22 01:09:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_eq_req_not [2022-11-22 01:09:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_eq_req_not [2022-11-22 01:09:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM [2022-11-22 01:09:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM [2022-11-22 01:09:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:09:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:09:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure set_eqe_hw [2022-11-22 01:09:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure set_eqe_hw [2022-11-22 01:09:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-22 01:09:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-22 01:09:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-22 01:09:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-22 01:09:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:09:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:09:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:09:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_update_rate [2022-11-22 01:09:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_update_rate [2022-11-22 01:09:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:09:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM [2022-11-22 01:09:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM [2022-11-22 01:09:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_init [2022-11-22 01:09:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_init [2022-11-22 01:09:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:09:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:09:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 01:09:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 01:09:27,087 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_uar_table [2022-11-22 01:09:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_uar_table [2022-11-22 01:09:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:09:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:09:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:09:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:09:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_addr [2022-11-22 01:09:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_addr [2022-11-22 01:09:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-22 01:09:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-22 01:09:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 01:09:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 01:09:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:09:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:09:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:09:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:09:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mtt [2022-11-22 01:09:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mtt [2022-11-22 01:09:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure go_bit [2022-11-22 01:09:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure go_bit [2022-11-22 01:09:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:09:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free [2022-11-22 01:09:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free [2022-11-22 01:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2022-11-22 01:09:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2022-11-22 01:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-22 01:09:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-22 01:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:09:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:09:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mthca_device_mutex [2022-11-22 01:09:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mthca_device_mutex [2022-11-22 01:09:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SW2HW_MPT [2022-11-22 01:09:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SW2HW_MPT [2022-11-22 01:09:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure pcie_capability_write_word [2022-11-22 01:09:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pcie_capability_write_word [2022-11-22 01:09:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_irqs [2022-11-22 01:09:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_irqs [2022-11-22 01:09:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mr_table [2022-11-22 01:09:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mr_table [2022-11-22 01:09:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __be64_to_cpup [2022-11-22 01:09:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __be64_to_cpup [2022-11-22 01:09:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_GET [2022-11-22 01:09:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2022-11-22 01:09:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2022-11-22 01:09:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-11-22 01:09:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-11-22 01:09:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_notrans [2022-11-22 01:09:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_notrans [2022-11-22 01:09:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-11-22 01:09:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-11-22 01:09:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 01:09:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 01:09:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_put [2022-11-22 01:09:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_put [2022-11-22 01:09:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc [2022-11-22 01:09:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc [2022-11-22 01:09:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64 [2022-11-22 01:09:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64 [2022-11-22 01:09:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-22 01:09:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-22 01:09:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_imm [2022-11-22 01:09:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_imm [2022-11-22 01:09:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mcg_table [2022-11-22 01:09:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mcg_table [2022-11-22 01:09:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_qp_table [2022-11-22 01:09:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_qp_table [2022-11-22 01:09:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:09:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:09:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_device [2022-11-22 01:09:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_device [2022-11-22 01:09:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_mad_agent [2022-11-22 01:09:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_mad_agent [2022-11-22 01:09:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:09:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:09:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:09:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:09:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_INIT_HCA [2022-11-22 01:09:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_INIT_HCA [2022-11-22 01:09:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_hw_index_to_key [2022-11-22 01:09:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_hw_index_to_key [2022-11-22 01:09:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:09:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:09:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:09:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:09:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-22 01:09:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-22 01:09:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_cq_table [2022-11-22 01:09:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_cq_table [2022-11-22 01:09:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_cleanup [2022-11-22 01:09:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_cleanup [2022-11-22 01:09:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:09:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:09:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_close_hca [2022-11-22 01:09:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_close_hca [2022-11-22 01:09:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_EQ [2022-11-22 01:09:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_EQ [2022-11-22 01:09:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure down [2022-11-22 01:09:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2022-11-22 01:09:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-22 01:09:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-22 01:09:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAD_IFC [2022-11-22 01:09:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAD_IFC [2022-11-22 01:09:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_cmd [2022-11-22 01:09:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_cmd [2022-11-22 01:09:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-22 01:09:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-22 01:09:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:09:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2022-11-22 01:09:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2022-11-22 01:09:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_eq [2022-11-22 01:09:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_eq [2022-11-22 01:09:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_alloc [2022-11-22 01:09:27,104 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_alloc [2022-11-22 01:09:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mailbox [2022-11-22 01:09:27,104 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mailbox [2022-11-22 01:09:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-22 01:09:27,104 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-22 01:09:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 01:09:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 01:09:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:09:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_DISABLE_LAM [2022-11-22 01:09:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_DISABLE_LAM [2022-11-22 01:09:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:09:27,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:09:27,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:09:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-11-22 01:09:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-11-22 01:09:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_alloc [2022-11-22 01:09:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_alloc [2022-11-22 01:09:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2022-11-22 01:09:27,106 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2022-11-22 01:09:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mthca_device_mutex [2022-11-22 01:09:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mthca_device_mutex [2022-11-22 01:09:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_setup_hca [2022-11-22 01:09:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_setup_hca [2022-11-22 01:09:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:09:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:09:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc [2022-11-22 01:09:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc [2022-11-22 01:09:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CONF_SPECIAL_QP [2022-11-22 01:09:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CONF_SPECIAL_QP [2022-11-22 01:09:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_reg [2022-11-22 01:09:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_reg [2022-11-22 01:09:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_check_profile_val [2022-11-22 01:09:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_check_profile_val [2022-11-22 01:09:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_sg [2022-11-22 01:09:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_sg [2022-11-22 01:09:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_FA [2022-11-22 01:09:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_FA [2022-11-22 01:09:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_free [2022-11-22 01:09:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_free [2022-11-22 01:09:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-22 01:09:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-22 01:09:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt_size [2022-11-22 01:09:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt_size [2022-11-22 01:09:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure dma_get_cache_alignment [2022-11-22 01:09:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_get_cache_alignment [2022-11-22 01:09:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mr [2022-11-22 01:09:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mr [2022-11-22 01:09:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mailbox [2022-11-22 01:09:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mailbox [2022-11-22 01:09:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 01:09:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 01:09:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:09:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:09:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_dev_lim [2022-11-22 01:09:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_dev_lim [2022-11-22 01:09:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2022-11-22 01:09:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2022-11-22 01:09:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_hw_index_to_key [2022-11-22 01:09:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_hw_index_to_key [2022-11-22 01:09:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_QUERY_FW [2022-11-22 01:09:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_QUERY_FW [2022-11-22 01:09:27,112 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2022-11-22 01:09:27,112 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2022-11-22 01:09:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 01:09:27,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 01:09:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SYS_DIS [2022-11-22 01:09:27,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SYS_DIS [2022-11-22 01:09:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_init [2022-11-22 01:09:27,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_init [2022-11-22 01:09:27,113 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_box [2022-11-22 01:09:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_box [2022-11-22 01:09:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:09:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-11-22 01:09:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-11-22 01:09:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:09:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:09:27,114 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_make_profile [2022-11-22 01:09:27,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_make_profile [2022-11-22 01:09:27,115 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2022-11-22 01:09:27,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2022-11-22 01:09:27,115 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:09:27,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:09:27,115 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unregister_device [2022-11-22 01:09:27,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unregister_device [2022-11-22 01:09:27,115 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_key_to_hw_index [2022-11-22 01:09:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_key_to_hw_index [2022-11-22 01:09:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-11-22 01:09:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-11-22 01:09:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:09:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:09:27,116 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-22 01:09:27,116 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-22 01:09:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-22 01:09:27,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-22 01:09:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-22 01:09:27,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-22 01:09:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:09:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_find [2022-11-22 01:09:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_find [2022-11-22 01:09:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm [2022-11-22 01:09:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm [2022-11-22 01:09:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_size [2022-11-22 01:09:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_size [2022-11-22 01:09:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:09:27,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:09:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-22 01:09:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-22 01:09:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_srq_table [2022-11-22 01:09:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_srq_table [2022-11-22 01:09:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_poll [2022-11-22 01:09:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_poll [2022-11-22 01:09:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM_AUX [2022-11-22 01:09:27,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM_AUX [2022-11-22 01:09:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-11-22 01:09:27,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-11-22 01:09:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_wait [2022-11-22 01:09:27,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_wait [2022-11-22 01:09:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_phys [2022-11-22 01:09:27,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_phys [2022-11-22 01:09:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_sg [2022-11-22 01:09:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_sg [2022-11-22 01:09:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:09:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:09:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure get_eqe [2022-11-22 01:09:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eqe [2022-11-22 01:09:27,121 INFO L130 BoogieDeclarations]: Found specification of procedure async_mask [2022-11-22 01:09:27,121 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mask [2022-11-22 01:09:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_init [2022-11-22 01:09:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_init [2022-11-22 01:09:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_free [2022-11-22 01:09:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_free [2022-11-22 01:09:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd [2022-11-22 01:09:27,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd [2022-11-22 01:09:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-22 01:09:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-22 01:09:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_get [2022-11-22 01:09:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_get [2022-11-22 01:09:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_remove_one [2022-11-22 01:09:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_remove_one [2022-11-22 01:09:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:09:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:09:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_pd_table [2022-11-22 01:09:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_pd_table [2022-11-22 01:09:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure init_query_mad [2022-11-22 01:09:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure init_query_mad [2022-11-22 01:09:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-22 01:09:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-22 01:09:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2022-11-22 01:09:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2022-11-22 01:09:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_post [2022-11-22 01:09:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_post [2022-11-22 01:09:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:09:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:09:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:09:27,125 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:09:27,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:09:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_regs [2022-11-22 01:09:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_regs [2022-11-22 01:09:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_PUT [2022-11-22 01:09:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt [2022-11-22 01:09:27,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt [2022-11-22 01:09:28,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:28,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:10:00,663 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:10:05,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:10:05,632 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:10:05,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:05 BoogieIcfgContainer [2022-11-22 01:10:05,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:10:05,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:10:05,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:10:05,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:10:05,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:13" (1/3) ... [2022-11-22 01:10:05,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dbd52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:05, skipping insertion in model container [2022-11-22 01:10:05,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:25" (2/3) ... [2022-11-22 01:10:05,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dbd52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:05, skipping insertion in model container [2022-11-22 01:10:05,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:05" (3/3) ... [2022-11-22 01:10:05,648 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2022-11-22 01:10:05,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:10:05,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:10:05,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:10:05,836 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;@2e23d544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:10:05,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:10:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 4015 states, 2590 states have (on average 1.3725868725868726) internal successors, (3555), 2659 states have internal predecessors, (3555), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) [2022-11-22 01:10:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:10:05,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:05,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:05,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:05,870 INFO L85 PathProgramCache]: Analyzing trace with hash -757964769, now seen corresponding path program 1 times [2022-11-22 01:10:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:05,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595844977] [2022-11-22 01:10:05,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:06,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:06,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595844977] [2022-11-22 01:10:06,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595844977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:06,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:06,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:10:06,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396817700] [2022-11-22 01:10:06,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:06,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:06,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:06,727 INFO L87 Difference]: Start difference. First operand has 4015 states, 2590 states have (on average 1.3725868725868726) internal successors, (3555), 2659 states have internal predecessors, (3555), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:09,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:15,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:16,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:18,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:20,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:22,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:22,572 INFO L93 Difference]: Finished difference Result 8103 states and 12240 transitions. [2022-11-22 01:10:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:22,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 01:10:22,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:22,619 INFO L225 Difference]: With dead ends: 8103 [2022-11-22 01:10:22,619 INFO L226 Difference]: Without dead ends: 4067 [2022-11-22 01:10:22,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:22,651 INFO L413 NwaCegarLoop]: 5429 mSDtfsCounter, 106 mSDsluCounter, 5410 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 10839 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:22,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 10839 Invalid, 1069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1065 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-11-22 01:10:22,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2022-11-22 01:10:22,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 4028. [2022-11-22 01:10:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2590 states have (on average 1.367953667953668) internal successors, (3543), 2658 states have internal predecessors, (3543), 1223 states have call successors, (1223), 215 states have call predecessors, (1223), 214 states have return successors, (1204), 1203 states have call predecessors, (1204), 1204 states have call successors, (1204) [2022-11-22 01:10:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5970 transitions. [2022-11-22 01:10:23,168 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5970 transitions. Word has length 16 [2022-11-22 01:10:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:23,169 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 5970 transitions. [2022-11-22 01:10:23,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5970 transitions. [2022-11-22 01:10:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:10:23,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:23,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:23,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:10:23,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:23,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:23,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1042187749, now seen corresponding path program 1 times [2022-11-22 01:10:23,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:23,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747273793] [2022-11-22 01:10:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:23,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:23,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747273793] [2022-11-22 01:10:23,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747273793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:23,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:23,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716173014] [2022-11-22 01:10:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:23,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:23,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:23,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:23,704 INFO L87 Difference]: Start difference. First operand 4028 states and 5970 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:10:26,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:29,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:31,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:35,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:37,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:38,705 INFO L93 Difference]: Finished difference Result 8080 states and 11971 transitions. [2022-11-22 01:10:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:38,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-22 01:10:38,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:38,732 INFO L225 Difference]: With dead ends: 8080 [2022-11-22 01:10:38,732 INFO L226 Difference]: Without dead ends: 4053 [2022-11-22 01:10:38,752 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 [2022-11-22 01:10:38,753 INFO L413 NwaCegarLoop]: 5377 mSDtfsCounter, 59 mSDsluCounter, 5340 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 10717 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:38,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 10717 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1062 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2022-11-22 01:10:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2022-11-22 01:10:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 4026. [2022-11-22 01:10:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 2599 states have (on average 1.3693728357060408) internal successors, (3559), 2666 states have internal predecessors, (3559), 1212 states have call successors, (1212), 215 states have call predecessors, (1212), 214 states have return successors, (1193), 1193 states have call predecessors, (1193), 1193 states have call successors, (1193) [2022-11-22 01:10:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5964 transitions. [2022-11-22 01:10:38,934 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5964 transitions. Word has length 16 [2022-11-22 01:10:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:38,935 INFO L495 AbstractCegarLoop]: Abstraction has 4026 states and 5964 transitions. [2022-11-22 01:10:38,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:10:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5964 transitions. [2022-11-22 01:10:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 01:10:38,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:38,938 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:38,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:10:38,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:38,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1629399414, now seen corresponding path program 1 times [2022-11-22 01:10:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:38,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128404025] [2022-11-22 01:10:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:10:39,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:39,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128404025] [2022-11-22 01:10:39,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128404025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:39,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:39,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:39,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036805120] [2022-11-22 01:10:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:39,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:39,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:39,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:39,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:39,470 INFO L87 Difference]: Start difference. First operand 4026 states and 5964 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:10:42,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:44,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:46,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:49,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:49,959 INFO L93 Difference]: Finished difference Result 4076 states and 6040 transitions. [2022-11-22 01:10:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2022-11-22 01:10:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:49,982 INFO L225 Difference]: With dead ends: 4076 [2022-11-22 01:10:49,982 INFO L226 Difference]: Without dead ends: 4073 [2022-11-22 01:10:49,986 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 [2022-11-22 01:10:49,987 INFO L413 NwaCegarLoop]: 5386 mSDtfsCounter, 5876 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5882 SdHoareTripleChecker+Valid, 5444 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:49,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5882 Valid, 5444 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-11-22 01:10:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2022-11-22 01:10:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4067. [2022-11-22 01:10:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 2630 states have (on average 1.3722433460076047) internal successors, (3609), 2698 states have internal predecessors, (3609), 1219 states have call successors, (1219), 218 states have call predecessors, (1219), 217 states have return successors, (1201), 1199 states have call predecessors, (1201), 1201 states have call successors, (1201) [2022-11-22 01:10:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 6029 transitions. [2022-11-22 01:10:50,206 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 6029 transitions. Word has length 64 [2022-11-22 01:10:50,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:50,207 INFO L495 AbstractCegarLoop]: Abstraction has 4067 states and 6029 transitions. [2022-11-22 01:10:50,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:10:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 6029 transitions. [2022-11-22 01:10:50,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-22 01:10:50,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:50,210 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:50,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:10:50,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:50,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1030310510, now seen corresponding path program 1 times [2022-11-22 01:10:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:50,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946523079] [2022-11-22 01:10:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:50,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:10:50,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:50,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946523079] [2022-11-22 01:10:50,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946523079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:50,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:50,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343353825] [2022-11-22 01:10:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:50,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:50,830 INFO L87 Difference]: Start difference. First operand 4067 states and 6029 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:10:53,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:55,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:57,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:10:59,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:01,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:02,679 INFO L93 Difference]: Finished difference Result 4075 states and 6038 transitions. [2022-11-22 01:11:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:11:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 65 [2022-11-22 01:11:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:02,712 INFO L225 Difference]: With dead ends: 4075 [2022-11-22 01:11:02,712 INFO L226 Difference]: Without dead ends: 4072 [2022-11-22 01:11:02,717 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 [2022-11-22 01:11:02,718 INFO L413 NwaCegarLoop]: 5384 mSDtfsCounter, 5873 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5879 SdHoareTripleChecker+Valid, 5442 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:02,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5879 Valid, 5442 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-22 01:11:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states. [2022-11-22 01:11:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 4066. [2022-11-22 01:11:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4066 states, 2630 states have (on average 1.3718631178707223) internal successors, (3608), 2697 states have internal predecessors, (3608), 1218 states have call successors, (1218), 218 states have call predecessors, (1218), 217 states have return successors, (1201), 1199 states have call predecessors, (1201), 1201 states have call successors, (1201) [2022-11-22 01:11:03,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 6027 transitions. [2022-11-22 01:11:03,026 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 6027 transitions. Word has length 65 [2022-11-22 01:11:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:03,029 INFO L495 AbstractCegarLoop]: Abstraction has 4066 states and 6027 transitions. [2022-11-22 01:11:03,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 6027 transitions. [2022-11-22 01:11:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 01:11:03,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:03,038 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:03,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:11:03,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1876934663, now seen corresponding path program 1 times [2022-11-22 01:11:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:03,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162643144] [2022-11-22 01:11:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:03,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:11:03,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:03,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162643144] [2022-11-22 01:11:03,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162643144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:03,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:03,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:03,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194518175] [2022-11-22 01:11:03,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:03,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:11:03,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:03,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:11:03,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:11:03,517 INFO L87 Difference]: Start difference. First operand 4066 states and 6027 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:06,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:09,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:10,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:13,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:14,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:17,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:20,308 INFO L93 Difference]: Finished difference Result 6444 states and 9467 transitions. [2022-11-22 01:11:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:11:20,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2022-11-22 01:11:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:20,363 INFO L225 Difference]: With dead ends: 6444 [2022-11-22 01:11:20,363 INFO L226 Difference]: Without dead ends: 6440 [2022-11-22 01:11:20,369 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 [2022-11-22 01:11:20,370 INFO L413 NwaCegarLoop]: 6561 mSDtfsCounter, 5821 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5825 SdHoareTripleChecker+Valid, 9647 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:20,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5825 Valid, 9647 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 941 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-22 01:11:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6440 states. [2022-11-22 01:11:20,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6440 to 6432. [2022-11-22 01:11:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6432 states, 4117 states have (on average 1.3585134806898227) internal successors, (5593), 4244 states have internal predecessors, (5593), 1917 states have call successors, (1917), 414 states have call predecessors, (1917), 397 states have return successors, (1945), 1851 states have call predecessors, (1945), 1900 states have call successors, (1945) [2022-11-22 01:11:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6432 states to 6432 states and 9455 transitions. [2022-11-22 01:11:20,953 INFO L78 Accepts]: Start accepts. Automaton has 6432 states and 9455 transitions. Word has length 66 [2022-11-22 01:11:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:20,954 INFO L495 AbstractCegarLoop]: Abstraction has 6432 states and 9455 transitions. [2022-11-22 01:11:20,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6432 states and 9455 transitions. [2022-11-22 01:11:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 01:11:20,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:20,958 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:20,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:11:20,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1942492533, now seen corresponding path program 1 times [2022-11-22 01:11:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:20,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498658525] [2022-11-22 01:11:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:20,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:11:21,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498658525] [2022-11-22 01:11:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498658525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:21,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:21,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642867295] [2022-11-22 01:11:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:11:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:11:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:11:21,380 INFO L87 Difference]: Start difference. First operand 6432 states and 9455 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:24,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:26,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:27,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:30,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:32,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:33,367 INFO L93 Difference]: Finished difference Result 6440 states and 9463 transitions. [2022-11-22 01:11:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:11:33,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 67 [2022-11-22 01:11:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:33,414 INFO L225 Difference]: With dead ends: 6440 [2022-11-22 01:11:33,415 INFO L226 Difference]: Without dead ends: 6437 [2022-11-22 01:11:33,420 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 [2022-11-22 01:11:33,421 INFO L413 NwaCegarLoop]: 5381 mSDtfsCounter, 5869 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5875 SdHoareTripleChecker+Valid, 5439 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:33,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5875 Valid, 5439 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-22 01:11:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2022-11-22 01:11:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 6437. [2022-11-22 01:11:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6437 states, 4121 states have (on average 1.3579228342635283) internal successors, (5596), 4247 states have internal predecessors, (5596), 1916 states have call successors, (1916), 414 states have call predecessors, (1916), 399 states have return successors, (1948), 1853 states have call predecessors, (1948), 1900 states have call successors, (1948) [2022-11-22 01:11:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 9460 transitions. [2022-11-22 01:11:33,855 INFO L78 Accepts]: Start accepts. Automaton has 6437 states and 9460 transitions. Word has length 67 [2022-11-22 01:11:33,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:33,855 INFO L495 AbstractCegarLoop]: Abstraction has 6437 states and 9460 transitions. [2022-11-22 01:11:33,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:33,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6437 states and 9460 transitions. [2022-11-22 01:11:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:11:33,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:33,858 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:33,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:11:33,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:33,859 INFO L85 PathProgramCache]: Analyzing trace with hash 85656188, now seen corresponding path program 1 times [2022-11-22 01:11:33,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:33,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669114045] [2022-11-22 01:11:33,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:33,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:11:34,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:34,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669114045] [2022-11-22 01:11:34,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669114045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:34,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:34,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:34,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875328595] [2022-11-22 01:11:34,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:34,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:11:34,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:11:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:11:34,275 INFO L87 Difference]: Start difference. First operand 6437 states and 9460 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:37,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:40,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:44,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:46,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:48,506 INFO L93 Difference]: Finished difference Result 6445 states and 9464 transitions. [2022-11-22 01:11:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:11:48,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2022-11-22 01:11:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:48,544 INFO L225 Difference]: With dead ends: 6445 [2022-11-22 01:11:48,544 INFO L226 Difference]: Without dead ends: 6441 [2022-11-22 01:11:48,548 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 [2022-11-22 01:11:48,548 INFO L413 NwaCegarLoop]: 5368 mSDtfsCounter, 105 mSDsluCounter, 5259 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 10627 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:48,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 10627 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1042 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time] [2022-11-22 01:11:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2022-11-22 01:11:48,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 6439. [2022-11-22 01:11:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6439 states, 4123 states have (on average 1.3570215862236237) internal successors, (5595), 4247 states have internal predecessors, (5595), 1914 states have call successors, (1914), 416 states have call predecessors, (1914), 401 states have return successors, (1948), 1853 states have call predecessors, (1948), 1900 states have call successors, (1948) [2022-11-22 01:11:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6439 states to 6439 states and 9457 transitions. [2022-11-22 01:11:48,955 INFO L78 Accepts]: Start accepts. Automaton has 6439 states and 9457 transitions. Word has length 68 [2022-11-22 01:11:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:48,956 INFO L495 AbstractCegarLoop]: Abstraction has 6439 states and 9457 transitions. [2022-11-22 01:11:48,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6439 states and 9457 transitions. [2022-11-22 01:11:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-22 01:11:48,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:48,957 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:48,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:11:48,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1641690792, now seen corresponding path program 1 times [2022-11-22 01:11:48,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:48,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144116358] [2022-11-22 01:11:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:48,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:11:49,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:49,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144116358] [2022-11-22 01:11:49,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144116358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:49,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:49,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:49,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777719664] [2022-11-22 01:11:49,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:49,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:11:49,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:49,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:11:49,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:11:49,400 INFO L87 Difference]: Start difference. First operand 6439 states and 9457 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:11:52,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:54,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:56,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:11:59,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:01,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:04,542 INFO L93 Difference]: Finished difference Result 10605 states and 15323 transitions. [2022-11-22 01:12:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2022-11-22 01:12:04,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:04,599 INFO L225 Difference]: With dead ends: 10605 [2022-11-22 01:12:04,599 INFO L226 Difference]: Without dead ends: 10602 [2022-11-22 01:12:04,609 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 [2022-11-22 01:12:04,610 INFO L413 NwaCegarLoop]: 6569 mSDtfsCounter, 5850 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5856 SdHoareTripleChecker+Valid, 9773 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:04,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5856 Valid, 9773 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 923 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2022-11-22 01:12:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-11-22 01:12:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 10591. [2022-11-22 01:12:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10591 states, 6673 states have (on average 1.3319346620710326) internal successors, (8888), 6886 states have internal predecessors, (8888), 3176 states have call successors, (3176), 767 states have call predecessors, (3176), 741 states have return successors, (3245), 3083 states have call predecessors, (3245), 3163 states have call successors, (3245) [2022-11-22 01:12:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10591 states to 10591 states and 15309 transitions. [2022-11-22 01:12:05,437 INFO L78 Accepts]: Start accepts. Automaton has 10591 states and 15309 transitions. Word has length 69 [2022-11-22 01:12:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:05,438 INFO L495 AbstractCegarLoop]: Abstraction has 10591 states and 15309 transitions. [2022-11-22 01:12:05,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 10591 states and 15309 transitions. [2022-11-22 01:12:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 01:12:05,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:05,440 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:05,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:12:05,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 645132543, now seen corresponding path program 1 times [2022-11-22 01:12:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:05,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960198706] [2022-11-22 01:12:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:12:05,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:05,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960198706] [2022-11-22 01:12:05,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960198706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:05,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:05,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634348827] [2022-11-22 01:12:05,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:05,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:05,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:05,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:05,834 INFO L87 Difference]: Start difference. First operand 10591 states and 15309 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:08,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:10,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:13,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:15,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:16,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:16,752 INFO L93 Difference]: Finished difference Result 10595 states and 15311 transitions. [2022-11-22 01:12:16,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:16,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 70 [2022-11-22 01:12:16,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:16,812 INFO L225 Difference]: With dead ends: 10595 [2022-11-22 01:12:16,813 INFO L226 Difference]: Without dead ends: 10592 [2022-11-22 01:12:16,823 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 [2022-11-22 01:12:16,823 INFO L413 NwaCegarLoop]: 5413 mSDtfsCounter, 5862 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5866 SdHoareTripleChecker+Valid, 5468 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:16,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5866 Valid, 5468 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 551 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-11-22 01:12:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-11-22 01:12:17,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 10592. [2022-11-22 01:12:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10592 states, 6674 states have (on average 1.3317350913994606) internal successors, (8888), 6886 states have internal predecessors, (8888), 3175 states have call successors, (3175), 768 states have call predecessors, (3175), 742 states have return successors, (3245), 3083 states have call predecessors, (3245), 3163 states have call successors, (3245) [2022-11-22 01:12:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10592 states to 10592 states and 15308 transitions. [2022-11-22 01:12:17,762 INFO L78 Accepts]: Start accepts. Automaton has 10592 states and 15308 transitions. Word has length 70 [2022-11-22 01:12:17,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:17,763 INFO L495 AbstractCegarLoop]: Abstraction has 10592 states and 15308 transitions. [2022-11-22 01:12:17,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 10592 states and 15308 transitions. [2022-11-22 01:12:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:12:17,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:17,770 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:17,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:12:17,771 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1477783237, now seen corresponding path program 1 times [2022-11-22 01:12:17,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:17,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912162265] [2022-11-22 01:12:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:12:18,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:18,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912162265] [2022-11-22 01:12:18,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912162265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:18,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:18,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:18,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650179170] [2022-11-22 01:12:18,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:18,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:18,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:18,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:18,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:18,166 INFO L87 Difference]: Start difference. First operand 10592 states and 15308 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:20,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:24,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:26,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:29,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:32,765 INFO L93 Difference]: Finished difference Result 12827 states and 18371 transitions. [2022-11-22 01:12:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:32,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71 [2022-11-22 01:12:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:32,839 INFO L225 Difference]: With dead ends: 12827 [2022-11-22 01:12:32,839 INFO L226 Difference]: Without dead ends: 12824 [2022-11-22 01:12:32,848 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 [2022-11-22 01:12:32,849 INFO L413 NwaCegarLoop]: 6172 mSDtfsCounter, 5626 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5632 SdHoareTripleChecker+Valid, 9600 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:32,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5632 Valid, 9600 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 901 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2022-11-22 01:12:32,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12824 states. [2022-11-22 01:12:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12824 to 12800. [2022-11-22 01:12:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12800 states, 8001 states have (on average 1.3193350831146107) internal successors, (10556), 8257 states have internal predecessors, (10556), 3858 states have call successors, (3858), 973 states have call predecessors, (3858), 940 states have return successors, (3929), 3757 states have call predecessors, (3929), 3847 states have call successors, (3929) [2022-11-22 01:12:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12800 states to 12800 states and 18343 transitions. [2022-11-22 01:12:33,849 INFO L78 Accepts]: Start accepts. Automaton has 12800 states and 18343 transitions. Word has length 71 [2022-11-22 01:12:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:33,850 INFO L495 AbstractCegarLoop]: Abstraction has 12800 states and 18343 transitions. [2022-11-22 01:12:33,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12800 states and 18343 transitions. [2022-11-22 01:12:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 01:12:33,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:33,853 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:33,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:12:33,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:33,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1431309186, now seen corresponding path program 1 times [2022-11-22 01:12:33,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:33,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890449557] [2022-11-22 01:12:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:33,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:12:34,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890449557] [2022-11-22 01:12:34,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890449557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:34,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:34,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:34,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704869189] [2022-11-22 01:12:34,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:34,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:34,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:34,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:34,353 INFO L87 Difference]: Start difference. First operand 12800 states and 18343 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:37,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:41,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:44,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:46,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:46,059 INFO L93 Difference]: Finished difference Result 14625 states and 20626 transitions. [2022-11-22 01:12:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2022-11-22 01:12:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:46,132 INFO L225 Difference]: With dead ends: 14625 [2022-11-22 01:12:46,133 INFO L226 Difference]: Without dead ends: 14621 [2022-11-22 01:12:46,148 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 [2022-11-22 01:12:46,149 INFO L413 NwaCegarLoop]: 5555 mSDtfsCounter, 5791 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 6226 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:46,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5797 Valid, 6226 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 645 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-11-22 01:12:46,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14621 states. [2022-11-22 01:12:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14621 to 14616. [2022-11-22 01:12:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14616 states, 9049 states have (on average 1.3033484362913028) internal successors, (11794), 9325 states have internal predecessors, (11794), 4373 states have call successors, (4373), 1238 states have call predecessors, (4373), 1193 states have return successors, (4446), 4260 states have call predecessors, (4446), 4364 states have call successors, (4446) [2022-11-22 01:12:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14616 states to 14616 states and 20613 transitions. [2022-11-22 01:12:47,402 INFO L78 Accepts]: Start accepts. Automaton has 14616 states and 20613 transitions. Word has length 72 [2022-11-22 01:12:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:47,402 INFO L495 AbstractCegarLoop]: Abstraction has 14616 states and 20613 transitions. [2022-11-22 01:12:47,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14616 states and 20613 transitions. [2022-11-22 01:12:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:12:47,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:47,404 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:12:47,404 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1418865950, now seen corresponding path program 1 times [2022-11-22 01:12:47,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:47,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720910951] [2022-11-22 01:12:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:12:47,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:47,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720910951] [2022-11-22 01:12:47,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720910951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:47,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:47,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:12:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935789739] [2022-11-22 01:12:47,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:47,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:12:47,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:12:47,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:12:47,790 INFO L87 Difference]: Start difference. First operand 14616 states and 20613 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:12:50,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:52,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:54,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:56,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:58,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:59,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:59,961 INFO L93 Difference]: Finished difference Result 14618 states and 20614 transitions. [2022-11-22 01:12:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:12:59,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2022-11-22 01:12:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:00,003 INFO L225 Difference]: With dead ends: 14618 [2022-11-22 01:13:00,004 INFO L226 Difference]: Without dead ends: 14615 [2022-11-22 01:13:00,011 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 [2022-11-22 01:13:00,012 INFO L413 NwaCegarLoop]: 5405 mSDtfsCounter, 5847 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5853 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:00,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5853 Valid, 5463 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 551 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-22 01:13:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14615 states. [2022-11-22 01:13:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14615 to 14615. [2022-11-22 01:13:01,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14615 states, 9049 states have (on average 1.303237926842745) internal successors, (11793), 9324 states have internal predecessors, (11793), 4372 states have call successors, (4372), 1238 states have call predecessors, (4372), 1193 states have return successors, (4446), 4260 states have call predecessors, (4446), 4364 states have call successors, (4446) [2022-11-22 01:13:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 20611 transitions. [2022-11-22 01:13:01,200 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 20611 transitions. Word has length 73 [2022-11-22 01:13:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 14615 states and 20611 transitions. [2022-11-22 01:13:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 20611 transitions. [2022-11-22 01:13:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:13:01,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:01,201 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:01,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:13:01,201 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:01,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1033130501, now seen corresponding path program 1 times [2022-11-22 01:13:01,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:01,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104878234] [2022-11-22 01:13:01,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:01,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:13:01,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:01,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104878234] [2022-11-22 01:13:01,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104878234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:01,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:01,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:13:01,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129684529] [2022-11-22 01:13:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:01,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:13:01,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:13:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:13:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:13:01,601 INFO L87 Difference]: Start difference. First operand 14615 states and 20611 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:04,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:06,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:07,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:09,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:12,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:13,379 INFO L93 Difference]: Finished difference Result 14617 states and 20612 transitions. [2022-11-22 01:13:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:13:13,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 74 [2022-11-22 01:13:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:13,423 INFO L225 Difference]: With dead ends: 14617 [2022-11-22 01:13:13,423 INFO L226 Difference]: Without dead ends: 14614 [2022-11-22 01:13:13,429 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 [2022-11-22 01:13:13,429 INFO L413 NwaCegarLoop]: 5403 mSDtfsCounter, 5844 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5850 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:13,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5850 Valid, 5461 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 551 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 01:13:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14614 states. [2022-11-22 01:13:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14614 to 14614. [2022-11-22 01:13:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14614 states, 9049 states have (on average 1.3031274173941871) internal successors, (11792), 9323 states have internal predecessors, (11792), 4371 states have call successors, (4371), 1238 states have call predecessors, (4371), 1193 states have return successors, (4446), 4260 states have call predecessors, (4446), 4364 states have call successors, (4446) [2022-11-22 01:13:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14614 states to 14614 states and 20609 transitions. [2022-11-22 01:13:14,582 INFO L78 Accepts]: Start accepts. Automaton has 14614 states and 20609 transitions. Word has length 74 [2022-11-22 01:13:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:14,583 INFO L495 AbstractCegarLoop]: Abstraction has 14614 states and 20609 transitions. [2022-11-22 01:13:14,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 14614 states and 20609 transitions. [2022-11-22 01:13:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 01:13:14,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:14,584 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:14,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:13:14,584 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:14,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:14,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1960238337, now seen corresponding path program 1 times [2022-11-22 01:13:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:14,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972051980] [2022-11-22 01:13:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:14,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:13:14,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:14,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972051980] [2022-11-22 01:13:14,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972051980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:14,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:14,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:13:14,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850618641] [2022-11-22 01:13:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:14,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:13:14,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:13:14,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:13:14,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:13:14,923 INFO L87 Difference]: Start difference. First operand 14614 states and 20609 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:17,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:19,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:22,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:24,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:26,247 INFO L93 Difference]: Finished difference Result 14616 states and 20610 transitions. [2022-11-22 01:13:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:13:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2022-11-22 01:13:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:26,288 INFO L225 Difference]: With dead ends: 14616 [2022-11-22 01:13:26,288 INFO L226 Difference]: Without dead ends: 14613 [2022-11-22 01:13:26,295 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 [2022-11-22 01:13:26,296 INFO L413 NwaCegarLoop]: 5401 mSDtfsCounter, 5841 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5847 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:26,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5847 Valid, 5459 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 551 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-22 01:13:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14613 states. [2022-11-22 01:13:27,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14613 to 14613. [2022-11-22 01:13:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14613 states, 9049 states have (on average 1.3030169079456293) internal successors, (11791), 9322 states have internal predecessors, (11791), 4370 states have call successors, (4370), 1238 states have call predecessors, (4370), 1193 states have return successors, (4446), 4260 states have call predecessors, (4446), 4364 states have call successors, (4446) [2022-11-22 01:13:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14613 states to 14613 states and 20607 transitions. [2022-11-22 01:13:27,312 INFO L78 Accepts]: Start accepts. Automaton has 14613 states and 20607 transitions. Word has length 75 [2022-11-22 01:13:27,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:27,313 INFO L495 AbstractCegarLoop]: Abstraction has 14613 states and 20607 transitions. [2022-11-22 01:13:27,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand 14613 states and 20607 transitions. [2022-11-22 01:13:27,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:13:27,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:27,315 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:13:27,315 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash 635815048, now seen corresponding path program 1 times [2022-11-22 01:13:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:27,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13938000] [2022-11-22 01:13:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:13:27,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:27,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13938000] [2022-11-22 01:13:27,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13938000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:27,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:27,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:13:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232138948] [2022-11-22 01:13:27,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:27,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:13:27,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:13:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:13:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:13:27,656 INFO L87 Difference]: Start difference. First operand 14613 states and 20607 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:30,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:34,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:36,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:38,384 INFO L93 Difference]: Finished difference Result 14615 states and 20608 transitions. [2022-11-22 01:13:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:13:38,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 76 [2022-11-22 01:13:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:38,429 INFO L225 Difference]: With dead ends: 14615 [2022-11-22 01:13:38,429 INFO L226 Difference]: Without dead ends: 14594 [2022-11-22 01:13:38,436 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 [2022-11-22 01:13:38,437 INFO L413 NwaCegarLoop]: 5400 mSDtfsCounter, 5838 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5844 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:38,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5844 Valid, 5458 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 550 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-11-22 01:13:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14594 states. [2022-11-22 01:13:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14594 to 14594. [2022-11-22 01:13:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14594 states, 9033 states have (on average 1.3031108158972655) internal successors, (11771), 9305 states have internal predecessors, (11771), 4368 states have call successors, (4368), 1237 states have call predecessors, (4368), 1192 states have return successors, (4445), 4259 states have call predecessors, (4445), 4363 states have call successors, (4445) [2022-11-22 01:13:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14594 states to 14594 states and 20584 transitions. [2022-11-22 01:13:39,404 INFO L78 Accepts]: Start accepts. Automaton has 14594 states and 20584 transitions. Word has length 76 [2022-11-22 01:13:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:39,404 INFO L495 AbstractCegarLoop]: Abstraction has 14594 states and 20584 transitions. [2022-11-22 01:13:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:13:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 14594 states and 20584 transitions. [2022-11-22 01:13:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 01:13:39,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:39,406 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:39,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:13:39,406 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash -139295472, now seen corresponding path program 1 times [2022-11-22 01:13:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:39,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253700988] [2022-11-22 01:13:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:39,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:13:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-22 01:13:40,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253700988] [2022-11-22 01:13:40,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253700988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:13:40,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:13:40,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:13:40,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325728725] [2022-11-22 01:13:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:13:40,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:13:40,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:13:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:13:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:13:40,020 INFO L87 Difference]: Start difference. First operand 14594 states and 20584 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:13:43,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:47,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:48,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:51,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:53,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:56,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:13:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:58,860 INFO L93 Difference]: Finished difference Result 29190 states and 41162 transitions. [2022-11-22 01:13:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:13:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2022-11-22 01:13:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:58,908 INFO L225 Difference]: With dead ends: 29190 [2022-11-22 01:13:58,908 INFO L226 Difference]: Without dead ends: 14608 [2022-11-22 01:13:58,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:13:58,964 INFO L413 NwaCegarLoop]: 5346 mSDtfsCounter, 17 mSDsluCounter, 10682 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 16028 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:58,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 16028 Invalid, 1597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1592 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2022-11-22 01:13:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14608 states. [2022-11-22 01:13:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14608 to 14596. [2022-11-22 01:13:59,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14596 states, 9035 states have (on average 1.3029330381848367) internal successors, (11772), 9307 states have internal predecessors, (11772), 4368 states have call successors, (4368), 1237 states have call predecessors, (4368), 1192 states have return successors, (4445), 4259 states have call predecessors, (4445), 4363 states have call successors, (4445) [2022-11-22 01:13:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14596 states to 14596 states and 20585 transitions. [2022-11-22 01:13:59,965 INFO L78 Accepts]: Start accepts. Automaton has 14596 states and 20585 transitions. Word has length 89 [2022-11-22 01:13:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:59,966 INFO L495 AbstractCegarLoop]: Abstraction has 14596 states and 20585 transitions. [2022-11-22 01:13:59,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:13:59,966 INFO L276 IsEmpty]: Start isEmpty. Operand 14596 states and 20585 transitions. [2022-11-22 01:13:59,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 01:13:59,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:59,968 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:59,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:13:59,968 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:13:59,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:59,969 INFO L85 PathProgramCache]: Analyzing trace with hash -694417218, now seen corresponding path program 1 times [2022-11-22 01:13:59,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:59,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044859030] [2022-11-22 01:13:59,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:59,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:14:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-22 01:14:00,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:14:00,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044859030] [2022-11-22 01:14:00,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044859030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:00,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:00,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:14:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939541520] [2022-11-22 01:14:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:00,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:14:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:14:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:14:00,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:14:00,439 INFO L87 Difference]: Start difference. First operand 14596 states and 20585 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:14:03,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:07,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:09,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:11,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:14,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:14:14,634 INFO L93 Difference]: Finished difference Result 14621 states and 20610 transitions. [2022-11-22 01:14:14,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:14:14,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 90 [2022-11-22 01:14:14,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:14:14,681 INFO L225 Difference]: With dead ends: 14621 [2022-11-22 01:14:14,681 INFO L226 Difference]: Without dead ends: 14618 [2022-11-22 01:14:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:14:14,689 INFO L413 NwaCegarLoop]: 6150 mSDtfsCounter, 5525 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 9657 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:14:14,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5531 Valid, 9657 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2022-11-22 01:14:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14618 states. [2022-11-22 01:14:15,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14618 to 14595. [2022-11-22 01:14:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14595 states, 9035 states have (on average 1.3027116768123963) internal successors, (11770), 9306 states have internal predecessors, (11770), 4367 states have call successors, (4367), 1237 states have call predecessors, (4367), 1192 states have return successors, (4445), 4259 states have call predecessors, (4445), 4363 states have call successors, (4445) [2022-11-22 01:14:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14595 states to 14595 states and 20582 transitions. [2022-11-22 01:14:15,690 INFO L78 Accepts]: Start accepts. Automaton has 14595 states and 20582 transitions. Word has length 90 [2022-11-22 01:14:15,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:14:15,690 INFO L495 AbstractCegarLoop]: Abstraction has 14595 states and 20582 transitions. [2022-11-22 01:14:15,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:14:15,690 INFO L276 IsEmpty]: Start isEmpty. Operand 14595 states and 20582 transitions. [2022-11-22 01:14:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-22 01:14:15,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:14:15,694 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:15,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:14:15,695 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:14:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:14:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2044964228, now seen corresponding path program 1 times [2022-11-22 01:14:15,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:14:15,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411428160] [2022-11-22 01:14:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:14:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:14:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-22 01:14:16,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:14:16,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411428160] [2022-11-22 01:14:16,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411428160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:16,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:16,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:14:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108963708] [2022-11-22 01:14:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:16,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:14:16,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:14:16,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:14:16,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:14:16,556 INFO L87 Difference]: Start difference. First operand 14595 states and 20582 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:14:20,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:23,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:27,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:29,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:14:32,739 INFO L93 Difference]: Finished difference Result 30733 states and 43168 transitions. [2022-11-22 01:14:32,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:14:32,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2022-11-22 01:14:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:14:32,786 INFO L225 Difference]: With dead ends: 30733 [2022-11-22 01:14:32,786 INFO L226 Difference]: Without dead ends: 16152 [2022-11-22 01:14:32,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:14:32,821 INFO L413 NwaCegarLoop]: 6086 mSDtfsCounter, 5869 mSDsluCounter, 7182 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 26 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5881 SdHoareTripleChecker+Valid, 13268 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:14:32,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5881 Valid, 13268 Invalid, 1475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 1446 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2022-11-22 01:14:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16152 states. [2022-11-22 01:14:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16152 to 15962. [2022-11-22 01:14:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15962 states, 9822 states have (on average 1.293931989411525) internal successors, (12709), 10111 states have internal predecessors, (12709), 4753 states have call successors, (4753), 1438 states have call predecessors, (4753), 1386 states have return successors, (4832), 4638 states have call predecessors, (4832), 4749 states have call successors, (4832) [2022-11-22 01:14:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15962 states to 15962 states and 22294 transitions. [2022-11-22 01:14:33,931 INFO L78 Accepts]: Start accepts. Automaton has 15962 states and 22294 transitions. Word has length 150 [2022-11-22 01:14:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:14:33,932 INFO L495 AbstractCegarLoop]: Abstraction has 15962 states and 22294 transitions. [2022-11-22 01:14:33,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:14:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 15962 states and 22294 transitions. [2022-11-22 01:14:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 01:14:33,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:14:33,935 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:33,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:14:33,936 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:14:33,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:14:33,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1335454680, now seen corresponding path program 1 times [2022-11-22 01:14:33,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:14:33,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226639344] [2022-11-22 01:14:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:14:33,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:14:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-22 01:14:34,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:14:34,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226639344] [2022-11-22 01:14:34,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226639344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:34,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:34,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:14:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005873015] [2022-11-22 01:14:34,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:34,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:14:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:14:34,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:14:34,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:14:34,593 INFO L87 Difference]: Start difference. First operand 15962 states and 22294 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:14:37,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:43,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:45,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:50,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:14:50,112 INFO L93 Difference]: Finished difference Result 32044 states and 44750 transitions. [2022-11-22 01:14:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:14:50,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 154 [2022-11-22 01:14:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:14:50,169 INFO L225 Difference]: With dead ends: 32044 [2022-11-22 01:14:50,170 INFO L226 Difference]: Without dead ends: 16096 [2022-11-22 01:14:50,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:14:50,210 INFO L413 NwaCegarLoop]: 6069 mSDtfsCounter, 9195 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 2333 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9201 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2333 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:14:50,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9201 Valid, 7146 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2333 Valid, 798 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2022-11-22 01:14:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16096 states. [2022-11-22 01:14:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16096 to 15890. [2022-11-22 01:14:51,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15890 states, 9788 states have (on average 1.2943400081732734) internal successors, (12669), 10077 states have internal predecessors, (12669), 4727 states have call successors, (4727), 1426 states have call predecessors, (4727), 1374 states have return successors, (4806), 4612 states have call predecessors, (4806), 4723 states have call successors, (4806) [2022-11-22 01:14:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15890 states to 15890 states and 22202 transitions. [2022-11-22 01:14:51,504 INFO L78 Accepts]: Start accepts. Automaton has 15890 states and 22202 transitions. Word has length 154 [2022-11-22 01:14:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:14:51,504 INFO L495 AbstractCegarLoop]: Abstraction has 15890 states and 22202 transitions. [2022-11-22 01:14:51,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:14:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 15890 states and 22202 transitions. [2022-11-22 01:14:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-22 01:14:51,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:14:51,508 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:51,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:14:51,508 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:14:51,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:14:51,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1277896485, now seen corresponding path program 1 times [2022-11-22 01:14:51,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:14:51,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982249941] [2022-11-22 01:14:51,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:14:51,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:14:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:14:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-11-22 01:14:51,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:14:51,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982249941] [2022-11-22 01:14:51,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982249941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:14:51,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:14:51,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:14:51,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759561084] [2022-11-22 01:14:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:14:51,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:14:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:14:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:14:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:14:51,937 INFO L87 Difference]: Start difference. First operand 15890 states and 22202 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:14:54,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:14:59,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:00,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:02,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:05,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:08,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:08,223 INFO L93 Difference]: Finished difference Result 15904 states and 22209 transitions. [2022-11-22 01:15:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:15:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 184 [2022-11-22 01:15:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:08,277 INFO L225 Difference]: With dead ends: 15904 [2022-11-22 01:15:08,277 INFO L226 Difference]: Without dead ends: 15901 [2022-11-22 01:15:08,285 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 [2022-11-22 01:15:08,286 INFO L413 NwaCegarLoop]: 5337 mSDtfsCounter, 130 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 10547 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:08,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 10547 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1056 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2022-11-22 01:15:08,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2022-11-22 01:15:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 15901. [2022-11-22 01:15:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15901 states, 9794 states have (on average 1.2933428629773331) internal successors, (12667), 10082 states have internal predecessors, (12667), 4726 states have call successors, (4726), 1432 states have call predecessors, (4726), 1380 states have return successors, (4806), 4612 states have call predecessors, (4806), 4723 states have call successors, (4806) [2022-11-22 01:15:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15901 states to 15901 states and 22199 transitions. [2022-11-22 01:15:09,402 INFO L78 Accepts]: Start accepts. Automaton has 15901 states and 22199 transitions. Word has length 184 [2022-11-22 01:15:09,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:09,403 INFO L495 AbstractCegarLoop]: Abstraction has 15901 states and 22199 transitions. [2022-11-22 01:15:09,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:15:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 15901 states and 22199 transitions. [2022-11-22 01:15:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-22 01:15:09,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:09,420 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:09,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:15:09,421 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:15:09,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1198900545, now seen corresponding path program 1 times [2022-11-22 01:15:09,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:09,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305491679] [2022-11-22 01:15:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:09,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:15:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:15:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-22 01:15:33,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:15:33,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305491679] [2022-11-22 01:15:33,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305491679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:15:33,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:15:33,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:15:33,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975921407] [2022-11-22 01:15:33,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:15:33,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:15:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:15:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:15:33,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:15:33,043 INFO L87 Difference]: Start difference. First operand 15901 states and 22199 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:15:36,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:39,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:43,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:45,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:48,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:15:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:15:51,819 INFO L93 Difference]: Finished difference Result 31806 states and 44409 transitions. [2022-11-22 01:15:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:15:51,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 343 [2022-11-22 01:15:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:15:51,868 INFO L225 Difference]: With dead ends: 31806 [2022-11-22 01:15:51,868 INFO L226 Difference]: Without dead ends: 15919 [2022-11-22 01:15:51,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:15:51,903 INFO L413 NwaCegarLoop]: 5346 mSDtfsCounter, 7 mSDsluCounter, 10675 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16021 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:15:51,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16021 Invalid, 1608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1596 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-22 01:15:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15919 states. [2022-11-22 01:15:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15919 to 15912. [2022-11-22 01:15:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15912 states, 9800 states have (on average 1.2931632653061225) internal successors, (12673), 10089 states have internal predecessors, (12673), 4730 states have call successors, (4730), 1432 states have call predecessors, (4730), 1381 states have return successors, (4811), 4616 states have call predecessors, (4811), 4727 states have call successors, (4811) [2022-11-22 01:15:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15912 states to 15912 states and 22214 transitions. [2022-11-22 01:15:53,185 INFO L78 Accepts]: Start accepts. Automaton has 15912 states and 22214 transitions. Word has length 343 [2022-11-22 01:15:53,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:15:53,186 INFO L495 AbstractCegarLoop]: Abstraction has 15912 states and 22214 transitions. [2022-11-22 01:15:53,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:15:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 15912 states and 22214 transitions. [2022-11-22 01:15:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-22 01:15:53,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:15:53,203 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:53,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:15:53,203 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:15:53,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:15:53,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2120866311, now seen corresponding path program 1 times [2022-11-22 01:15:53,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:15:53,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473019534] [2022-11-22 01:15:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:15:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-22 01:16:35,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:35,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473019534] [2022-11-22 01:16:35,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473019534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:35,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:35,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:16:35,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147686581] [2022-11-22 01:16:35,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:35,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:16:35,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:35,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:16:35,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:35,497 INFO L87 Difference]: Start difference. First operand 15912 states and 22214 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-22 01:16:39,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:16:42,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:16:46,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:16:48,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:16:51,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:16:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:57,185 INFO L93 Difference]: Finished difference Result 32022 states and 44750 transitions. [2022-11-22 01:16:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:16:57,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) Word has length 374 [2022-11-22 01:16:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:57,235 INFO L225 Difference]: With dead ends: 32022 [2022-11-22 01:16:57,235 INFO L226 Difference]: Without dead ends: 16124 [2022-11-22 01:16:57,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:57,272 INFO L413 NwaCegarLoop]: 5660 mSDtfsCounter, 236 mSDsluCounter, 16652 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 22312 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:57,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 22312 Invalid, 2218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2209 Invalid, 4 Unknown, 0 Unchecked, 20.1s Time] [2022-11-22 01:16:57,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16124 states. [2022-11-22 01:16:58,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16124 to 15909. [2022-11-22 01:16:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15909 states, 9799 states have (on average 1.2930911317481375) internal successors, (12671), 10087 states have internal predecessors, (12671), 4728 states have call successors, (4728), 1431 states have call predecessors, (4728), 1381 states have return successors, (4809), 4616 states have call predecessors, (4809), 4725 states have call successors, (4809) [2022-11-22 01:16:58,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15909 states to 15909 states and 22208 transitions. [2022-11-22 01:16:58,519 INFO L78 Accepts]: Start accepts. Automaton has 15909 states and 22208 transitions. Word has length 374 [2022-11-22 01:16:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:58,520 INFO L495 AbstractCegarLoop]: Abstraction has 15909 states and 22208 transitions. [2022-11-22 01:16:58,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-22 01:16:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 15909 states and 22208 transitions. [2022-11-22 01:16:58,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-11-22 01:16:58,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:58,533 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:58,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:16:58,534 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:58,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:58,534 INFO L85 PathProgramCache]: Analyzing trace with hash 478369363, now seen corresponding path program 1 times [2022-11-22 01:16:58,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:58,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799271159] [2022-11-22 01:16:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:58,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-11-22 01:17:27,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:27,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799271159] [2022-11-22 01:17:27,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799271159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:27,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:17:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791604769] [2022-11-22 01:17:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:27,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:17:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:17:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:17:27,573 INFO L87 Difference]: Start difference. First operand 15909 states and 22208 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 01:17:30,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:35,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:38,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:40,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:44,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:17:46,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:46,402 INFO L93 Difference]: Finished difference Result 32176 states and 44998 transitions. [2022-11-22 01:17:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:17:46,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 352 [2022-11-22 01:17:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:46,453 INFO L225 Difference]: With dead ends: 32176 [2022-11-22 01:17:46,453 INFO L226 Difference]: Without dead ends: 16281 [2022-11-22 01:17:46,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:46,503 INFO L413 NwaCegarLoop]: 5655 mSDtfsCounter, 391 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 158 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 16461 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:46,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 16461 Invalid, 1802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [158 Valid, 1641 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2022-11-22 01:17:46,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16281 states. [2022-11-22 01:17:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16281 to 15913. [2022-11-22 01:17:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15913 states, 9803 states have (on average 1.2929715393246966) internal successors, (12675), 10091 states have internal predecessors, (12675), 4728 states have call successors, (4728), 1431 states have call predecessors, (4728), 1381 states have return successors, (4809), 4616 states have call predecessors, (4809), 4725 states have call successors, (4809) [2022-11-22 01:17:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15913 states to 15913 states and 22212 transitions. [2022-11-22 01:17:47,824 INFO L78 Accepts]: Start accepts. Automaton has 15913 states and 22212 transitions. Word has length 352 [2022-11-22 01:17:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:47,825 INFO L495 AbstractCegarLoop]: Abstraction has 15913 states and 22212 transitions. [2022-11-22 01:17:47,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-22 01:17:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 15913 states and 22212 transitions. [2022-11-22 01:17:47,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-22 01:17:47,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:47,841 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:47,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:17:47,842 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:17:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:47,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1315383795, now seen corresponding path program 1 times [2022-11-22 01:17:47,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:47,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428451059] [2022-11-22 01:17:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:47,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2022-11-22 01:18:31,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:31,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428451059] [2022-11-22 01:18:31,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428451059] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:31,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82224699] [2022-11-22 01:18:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:31,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:31,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:31,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:18:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:44,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 33949 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:18:44,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-11-22 01:18:45,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:18:45,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82224699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:45,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:18:45,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-11-22 01:18:45,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726297027] [2022-11-22 01:18:45,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:45,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:18:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:18:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:18:45,036 INFO L87 Difference]: Start difference. First operand 15913 states and 22212 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-22 01:18:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:54,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:57,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:02,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:04,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:04,156 INFO L93 Difference]: Finished difference Result 31848 states and 44464 transitions. [2022-11-22 01:19:04,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:19:04,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 469 [2022-11-22 01:19:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:04,197 INFO L225 Difference]: With dead ends: 31848 [2022-11-22 01:19:04,197 INFO L226 Difference]: Without dead ends: 15949 [2022-11-22 01:19:04,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:19:04,229 INFO L413 NwaCegarLoop]: 5351 mSDtfsCounter, 7 mSDsluCounter, 10639 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 26 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15990 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:04,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15990 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1621 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2022-11-22 01:19:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15949 states. [2022-11-22 01:19:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15949 to 15923. [2022-11-22 01:19:05,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15923 states, 9809 states have (on average 1.2927923335712102) internal successors, (12681), 10099 states have internal predecessors, (12681), 4732 states have call successors, (4732), 1431 states have call predecessors, (4732), 1381 states have return successors, (4813), 4620 states have call predecessors, (4813), 4729 states have call successors, (4813) [2022-11-22 01:19:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15923 states to 15923 states and 22226 transitions. [2022-11-22 01:19:05,500 INFO L78 Accepts]: Start accepts. Automaton has 15923 states and 22226 transitions. Word has length 469 [2022-11-22 01:19:05,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:05,500 INFO L495 AbstractCegarLoop]: Abstraction has 15923 states and 22226 transitions. [2022-11-22 01:19:05,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 3 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-22 01:19:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 15923 states and 22226 transitions. [2022-11-22 01:19:05,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-11-22 01:19:05,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:05,508 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:05,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:19:05,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-22 01:19:05,709 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:05,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash 823440146, now seen corresponding path program 1 times [2022-11-22 01:19:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:05,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532006451] [2022-11-22 01:19:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:06,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:06,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532006451] [2022-11-22 01:19:06,104 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:19:06,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41507116] [2022-11-22 01:19:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:06,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:19:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:19:06,106 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:19:06,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:19:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:12,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 6716 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:19:12,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:19:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2022-11-22 01:19:13,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:19:13,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41507116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:13,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:13,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:13,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106592272] [2022-11-22 01:19:13,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:13,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:13,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:13,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:13,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:13,030 INFO L87 Difference]: Start difference. First operand 15923 states and 22226 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2022-11-22 01:19:15,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:20,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:23,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:27,109 INFO L93 Difference]: Finished difference Result 31853 states and 44492 transitions. [2022-11-22 01:19:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 506 [2022-11-22 01:19:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:27,149 INFO L225 Difference]: With dead ends: 31853 [2022-11-22 01:19:27,149 INFO L226 Difference]: Without dead ends: 15944 [2022-11-22 01:19:27,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:27,182 INFO L413 NwaCegarLoop]: 5336 mSDtfsCounter, 1 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10669 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:27,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10669 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1063 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-11-22 01:19:27,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15944 states. [2022-11-22 01:19:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15944 to 15930. [2022-11-22 01:19:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15930 states, 9816 states have (on average 1.2925835370823147) internal successors, (12688), 10106 states have internal predecessors, (12688), 4732 states have call successors, (4732), 1431 states have call predecessors, (4732), 1381 states have return successors, (4813), 4620 states have call predecessors, (4813), 4729 states have call successors, (4813) [2022-11-22 01:19:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15930 states to 15930 states and 22233 transitions. [2022-11-22 01:19:28,349 INFO L78 Accepts]: Start accepts. Automaton has 15930 states and 22233 transitions. Word has length 506 [2022-11-22 01:19:28,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:28,350 INFO L495 AbstractCegarLoop]: Abstraction has 15930 states and 22233 transitions. [2022-11-22 01:19:28,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2022-11-22 01:19:28,350 INFO L276 IsEmpty]: Start isEmpty. Operand 15930 states and 22233 transitions. [2022-11-22 01:19:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-11-22 01:19:28,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:28,357 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:28,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:19:28,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:19:28,559 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:28,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:28,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2093112849, now seen corresponding path program 1 times [2022-11-22 01:19:28,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:28,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667551354] [2022-11-22 01:19:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:28,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:29,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:29,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667551354] [2022-11-22 01:19:29,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:19:29,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258716019] [2022-11-22 01:19:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:29,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:19:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:19:29,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:19:29,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:19:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:35,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 6766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:19:35,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:19:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-11-22 01:19:36,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:19:36,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258716019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:36,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:36,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:19:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129957210] [2022-11-22 01:19:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:36,081 INFO L87 Difference]: Start difference. First operand 15930 states and 22233 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-22 01:19:38,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:43,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:46,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:49,673 INFO L93 Difference]: Finished difference Result 31881 states and 44545 transitions. [2022-11-22 01:19:49,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:49,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 517 [2022-11-22 01:19:49,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:49,807 INFO L225 Difference]: With dead ends: 31881 [2022-11-22 01:19:49,807 INFO L226 Difference]: Without dead ends: 15965 [2022-11-22 01:19:49,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:49,839 INFO L413 NwaCegarLoop]: 5336 mSDtfsCounter, 4 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10667 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:49,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10667 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1066 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 01:19:49,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15965 states. [2022-11-22 01:19:50,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15965 to 15937. [2022-11-22 01:19:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15937 states, 9823 states have (on average 1.29237503817571) internal successors, (12695), 10113 states have internal predecessors, (12695), 4732 states have call successors, (4732), 1431 states have call predecessors, (4732), 1381 states have return successors, (4813), 4620 states have call predecessors, (4813), 4729 states have call successors, (4813) [2022-11-22 01:19:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15937 states to 15937 states and 22240 transitions. [2022-11-22 01:19:51,002 INFO L78 Accepts]: Start accepts. Automaton has 15937 states and 22240 transitions. Word has length 517 [2022-11-22 01:19:51,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:51,002 INFO L495 AbstractCegarLoop]: Abstraction has 15937 states and 22240 transitions. [2022-11-22 01:19:51,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-22 01:19:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 15937 states and 22240 transitions. [2022-11-22 01:19:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-22 01:19:51,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:51,011 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:51,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:19:51,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-22 01:19:51,212 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash -166025274, now seen corresponding path program 1 times [2022-11-22 01:19:51,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:51,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124633557] [2022-11-22 01:19:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:51,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:51,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:51,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124633557] [2022-11-22 01:19:51,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:19:51,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874375992] [2022-11-22 01:19:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:51,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:19:51,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:19:51,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:19:51,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2829db8-d115-4a02-a21a-1ab4b3e482f1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:19:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:58,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 7472 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:19:58,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:19:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-22 01:19:58,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:19:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-11-22 01:19:59,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874375992] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:19:59,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [285913960] [2022-11-22 01:19:59,628 INFO L159 IcfgInterpreter]: Started Sifa with 335 locations of interest [2022-11-22 01:19:59,629 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:19:59,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:19:59,640 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:19:59,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:20:09,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 669 treesize of output 563 [2022-11-22 01:20:10,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:10,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:11,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:12,394 INFO L217 Elim1Store]: Index analysis took 1064 ms [2022-11-22 01:20:12,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 110 select indices, 110 select index equivalence classes, 6216 disjoint index pairs (out of 5995 index pairs), introduced 110 new quantified variables, introduced 0 case distinctions, treesize of input 4305 treesize of output 3754 [2022-11-22 01:20:17,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:20:17,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 677 treesize of output 571 [2022-11-22 01:22:34,162 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 15 treesize of output 1 [2022-11-22 01:22:34,174 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 19 treesize of output 11 [2022-11-22 01:22:34,184 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 15 treesize of output 1 [2022-11-22 01:22:43,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 676 treesize of output 524 [2022-11-22 01:22:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:43,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-22 01:22:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:43,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 7 [2022-11-22 01:22:44,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-22 01:22:44,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,373 INFO L217 Elim1Store]: Index analysis took 117 ms [2022-11-22 01:22:44,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 561 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 103 [2022-11-22 01:22:44,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-22 01:22:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-22 01:22:44,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2022-11-22 01:22:44,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:44,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-22 01:22:44,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 49 [2022-11-22 01:22:46,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 112 select indices, 112 select index equivalence classes, 6216 disjoint index pairs (out of 6216 index pairs), introduced 112 new quantified variables, introduced 0 case distinctions, treesize of input 4306 treesize of output 3200 [2022-11-22 01:22:46,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-11-22 01:22:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:22:46,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25