./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:38:54,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:38:54,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:38:54,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:38:54,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:38:54,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:38:54,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:38:54,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:38:54,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:38:54,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:38:54,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:38:54,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:38:54,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:38:54,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:38:54,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:38:54,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:38:54,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:38:54,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:38:54,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:38:54,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:38:54,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:38:54,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:38:54,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:38:54,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:38:54,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:38:54,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:38:54,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:38:54,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:38:54,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:38:54,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:38:54,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:38:54,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:38:54,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:38:54,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:38:54,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:38:54,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:38:54,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:38:54,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:38:54,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:38:54,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:38:54,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:38:54,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:38:55,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:38:55,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:38:55,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:38:55,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:38:55,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:38:55,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:38:55,018 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:38:55,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:38:55,019 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:38:55,019 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:38:55,020 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:38:55,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:38:55,021 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:38:55,021 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:38:55,021 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:38:55,021 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:38:55,022 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:38:55,022 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:38:55,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:38:55,023 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:38:55,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:38:55,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:38:55,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:38:55,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:38:55,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:38:55,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:38:55,025 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:38:55,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:38:55,025 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:38:55,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:38:55,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:38:55,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:38:55,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:38:55,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:38:55,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:38:55,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:38:55,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:38:55,028 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:38:55,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:38:55,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:38:55,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:38:55,028 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_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 [2022-11-26 00:38:55,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:38:55,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:38:55,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:38:55,394 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:38:55,395 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:38:55,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2022-11-26 00:38:58,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:38:58,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:38:58,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2022-11-26 00:38:58,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/data/1d55848e2/c6bac9d74a91457a9f2de871a788e4be/FLAG0c7fa8a9b [2022-11-26 00:38:58,954 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/data/1d55848e2/c6bac9d74a91457a9f2de871a788e4be [2022-11-26 00:38:58,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:38:58,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:38:58,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:38:58,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:38:58,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:38:58,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:38:58" (1/1) ... [2022-11-26 00:38:58,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d93d376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:58, skipping insertion in model container [2022-11-26 00:38:58,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:38:58" (1/1) ... [2022-11-26 00:38:58,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:38:59,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:38:59,463 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_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2022-11-26 00:38:59,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:38:59,649 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:38:59,678 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_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2022-11-26 00:38:59,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:38:59,781 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:38:59,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59 WrapperNode [2022-11-26 00:38:59,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:38:59,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:38:59,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:38:59,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:38:59,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,906 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-26 00:38:59,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:38:59,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:38:59,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:38:59,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:38:59,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:38:59,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:39:00,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:39:00,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:39:00,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:39:00,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:39:00,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:39:00,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:39:00,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (1/1) ... [2022-11-26 00:39:00,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:39:00,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:00,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:39:00,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:39:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:39:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:39:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:39:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:39:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:39:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:39:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:39:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:39:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:39:00,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:39:00,431 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:39:00,436 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:39:02,817 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:39:03,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:39:03,318 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-26 00:39:03,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:39:03 BoogieIcfgContainer [2022-11-26 00:39:03,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:39:03,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:39:03,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:39:03,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:39:03,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:38:58" (1/3) ... [2022-11-26 00:39:03,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a471749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:39:03, skipping insertion in model container [2022-11-26 00:39:03,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:38:59" (2/3) ... [2022-11-26 00:39:03,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a471749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:39:03, skipping insertion in model container [2022-11-26 00:39:03,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:39:03" (3/3) ... [2022-11-26 00:39:03,331 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-1.i [2022-11-26 00:39:03,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:39:03,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:39:03,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:39:03,419 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;@126ae8c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:39:03,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:39:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:39:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:39:03,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:03,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:39:03,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:39:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-26 00:39:03,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:03,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179229045] [2022-11-26 00:39:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:03,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:03,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179229045] [2022-11-26 00:39:03,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179229045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:03,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:39:03,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:39:03,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825913710] [2022-11-26 00:39:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:03,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:39:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:03,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:39:03,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:39:03,742 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:06,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:39:08,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:39:10,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:39:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:10,877 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-26 00:39:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:39:10,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:39:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:10,900 INFO L225 Difference]: With dead ends: 347 [2022-11-26 00:39:10,900 INFO L226 Difference]: Without dead ends: 220 [2022-11-26 00:39:10,903 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 [2022-11-26 00:39:10,906 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:10,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-26 00:39:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-26 00:39:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-26 00:39:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:39:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-26 00:39:10,977 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-26 00:39:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:10,980 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-26 00:39:10,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-26 00:39:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-26 00:39:10,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:10,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:39:10,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:39:10,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:39:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-26 00:39:10,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:10,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924380747] [2022-11-26 00:39:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:10,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:11,334 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:39:11,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429177349] [2022-11-26 00:39:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:11,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:11,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:11,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:39:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:39:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:12,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:39:12,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:39:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:12,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:39:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:13,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:13,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924380747] [2022-11-26 00:39:13,028 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:39:13,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429177349] [2022-11-26 00:39:13,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429177349] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:39:13,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [333547284] [2022-11-26 00:39:13,049 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-26 00:39:13,050 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:39:13,054 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:39:13,059 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:39:13,060 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:39:13,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,320 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:39:13,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:39:13,383 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:39:13,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:39:13,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:39:13,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:13,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:39:14,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:39:14,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:14,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:14,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,143 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:39:14,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:39:14,182 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:39:14,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 00:39:14,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:14,247 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:39:14,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:39:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:14,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:39:14,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:39:14,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:14,951 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:39:22,868 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:39:30,335 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:39:30,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [333547284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:30,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:39:30,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:39:30,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270040010] [2022-11-26 00:39:30,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:30,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:39:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:30,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:39:30,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-26 00:39:30,348 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:34,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:39:36,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:39:38,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:39:45,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:39:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:45,424 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-26 00:39:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:39:45,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-26 00:39:45,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:45,427 INFO L225 Difference]: With dead ends: 265 [2022-11-26 00:39:45,427 INFO L226 Difference]: Without dead ends: 140 [2022-11-26 00:39:45,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-26 00:39:45,429 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:45,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 466 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 211 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2022-11-26 00:39:45,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-26 00:39:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-26 00:39:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:39:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-26 00:39:45,454 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-26 00:39:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:45,455 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-26 00:39:45,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-26 00:39:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-26 00:39:45,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:45,458 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:39:45,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:39:45,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:45,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:39:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-26 00:39:45,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:45,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042144987] [2022-11-26 00:39:45,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:45,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:45,849 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:39:45,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289912439] [2022-11-26 00:39:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:45,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:45,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:39:45,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:39:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:47,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:39:47,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:39:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:39:47,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:39:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:39:47,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:47,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042144987] [2022-11-26 00:39:47,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:39:47,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289912439] [2022-11-26 00:39:47,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289912439] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:39:47,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1502339746] [2022-11-26 00:39:47,372 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:39:47,372 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:39:47,373 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:39:47,373 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:39:47,373 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:39:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:47,497 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:39:47,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:39:47,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:47,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:39:47,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:47,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:39:47,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:47,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:39:47,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:47,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:39:48,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:48,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:39:48,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:48,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:48,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:39:48,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:39:48,327 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:39:48,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:39:48,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:39:48,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:39:48,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:48,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:48,841 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:39:48,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:39:48,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:39:48,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:48,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:48,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:39:48,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:39:49,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:49,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:39:49,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:39:49,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:39:49,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:39:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:49,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:49,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:49,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:39:50,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:39:50,165 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:39:50,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:39:50,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:39:50,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:50,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:39:50,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:39:50,624 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-26 00:39:50,725 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:39:56,847 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:04,784 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:14,805 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:27,201 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:40,075 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:40,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1502339746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:40:40,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:40:40,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:40:40,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594310566] [2022-11-26 00:40:40,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:40:40,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:40:40,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:40:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:40:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:40:40,652 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:40:43,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:45,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:47,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:49,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:51,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:53,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:56,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:40:58,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:41:00,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:41:06,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:08,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:41:11,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:12,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:41:14,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:16,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:17,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:41:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:17,532 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-26 00:41:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:41:17,532 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-26 00:41:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:17,534 INFO L225 Difference]: With dead ends: 267 [2022-11-26 00:41:17,534 INFO L226 Difference]: Without dead ends: 142 [2022-11-26 00:41:17,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.9s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:41:17,536 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:17,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 641 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 9 Unknown, 0 Unchecked, 36.8s Time] [2022-11-26 00:41:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-26 00:41:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-26 00:41:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-26 00:41:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-26 00:41:17,588 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-26 00:41:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:17,588 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-26 00:41:17,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:41:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-26 00:41:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:41:17,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:17,601 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:41:17,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:41:17,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:17,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:41:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-26 00:41:17,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:17,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552489499] [2022-11-26 00:41:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:17,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:17,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:41:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171845002] [2022-11-26 00:41:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:17,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:17,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:17,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:41:18,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2b9a6a-dcc3-4eaa-bb82-617c7d68d67c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:41:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:19,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:41:19,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:41:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:41:19,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:41:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:41:19,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:41:19,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552489499] [2022-11-26 00:41:19,517 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:41:19,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171845002] [2022-11-26 00:41:19,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171845002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:41:19,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1711963445] [2022-11-26 00:41:19,521 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:41:19,522 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:41:19,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:41:19,522 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:41:19,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:41:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:19,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:19,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:19,621 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:41:19,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:41:19,679 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:41:19,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:41:19,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:19,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:41:19,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:41:19,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:19,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:41:20,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:20,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:41:20,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:41:20,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:41:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:41:20,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:41:20,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:41:20,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:41:20,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:41:20,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:41:20,546 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:41:20,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-26 00:41:20,632 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:41:20,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:41:20,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:41:20,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:41:20,801 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 14 treesize of output 10 [2022-11-26 00:41:20,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:41:20,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:41:20,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-26 00:41:20,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:41:20,858 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 14 treesize of output 10 [2022-11-26 00:41:20,865 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 14 treesize of output 10 [2022-11-26 00:41:20,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:20,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:41:20,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:41:20,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:41:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:21,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:41:21,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:41:21,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:41:22,294 INFO L217 Elim1Store]: Index analysis took 849 ms [2022-11-26 00:41:30,999 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 60 DAG size of output: 18 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:41:30,999 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-26 00:41:31,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-26 00:41:33,462 INFO L217 Elim1Store]: Index analysis took 2278 ms [2022-11-26 00:41:37,167 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-26 00:41:37,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-26 00:41:46,367 WARN L233 SmtUtils]: Spent 9.12s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:41:46,368 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-26 00:41:46,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-26 00:42:17,377 WARN L233 SmtUtils]: Spent 30.84s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:42:17,378 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:42:17,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-26 00:42:18,465 INFO L217 Elim1Store]: Index analysis took 790 ms [2022-11-26 00:42:38,111 WARN L233 SmtUtils]: Spent 19.09s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:42:38,113 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-26 00:42:38,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-26 00:42:39,801 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-26 00:42:39,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-26 00:42:39,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:42:40,282 INFO L217 Elim1Store]: Index analysis took 227 ms [2022-11-26 00:42:41,983 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:42:41,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-26 00:42:47,577 INFO L217 Elim1Store]: Index analysis took 805 ms