./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d --- 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-8393723 [2022-11-19 07:42:12,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:42:12,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:42:12,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:42:12,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:42:12,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:42:12,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:42:12,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:42:12,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:42:12,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:42:12,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:42:12,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:42:12,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:42:12,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:42:12,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:42:12,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:42:12,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:42:12,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:42:12,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:42:12,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:42:12,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:42:12,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:42:12,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:42:12,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:42:12,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:42:12,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:42:12,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:42:12,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:42:12,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:42:12,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:42:12,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:42:12,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:42:12,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:42:12,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:42:12,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:42:12,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:42:12,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:42:12,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:42:12,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:42:12,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:42:12,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:42:12,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:42:12,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:42:12,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:42:12,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:42:12,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:42:12,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:42:12,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:42:12,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:42:12,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:42:12,917 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:42:12,917 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:42:12,918 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:42:12,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:42:12,919 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:42:12,919 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:42:12,919 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:42:12,920 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:42:12,920 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:42:12,920 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:42:12,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:42:12,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:42:12,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:42:12,921 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:42:12,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:42:12,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:42:12,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:42:12,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:42:12,924 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:42:12,924 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:42:12,924 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:42:12,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:42:12,925 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:42:12,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:42:12,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:42:12,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:42:12,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:42:12,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:12,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:42:12,926 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:42:12,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:42:12,927 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:42:12,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:42:12,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:42:12,927 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d [2022-11-19 07:42:13,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:42:13,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:42:13,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:42:13,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:42:13,315 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:42:13,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/forester-heap/sll-01-1.i [2022-11-19 07:42:13,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/data/16e90b02d/17b2361990684919a4e9a564c30f7861/FLAGad79ad4fe [2022-11-19 07:42:13,930 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:42:13,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i [2022-11-19 07:42:13,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/data/16e90b02d/17b2361990684919a4e9a564c30f7861/FLAGad79ad4fe [2022-11-19 07:42:14,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/data/16e90b02d/17b2361990684919a4e9a564c30f7861 [2022-11-19 07:42:14,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:42:14,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:42:14,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:14,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:42:14,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:42:14,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d227a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14, skipping insertion in model container [2022-11-19 07:42:14,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:42:14,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:42:14,693 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2022-11-19 07:42:14,711 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2022-11-19 07:42:14,715 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2022-11-19 07:42:14,716 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2022-11-19 07:42:14,724 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2022-11-19 07:42:14,727 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2022-11-19 07:42:14,732 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2022-11-19 07:42:14,734 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2022-11-19 07:42:14,735 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2022-11-19 07:42:14,737 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2022-11-19 07:42:14,743 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2022-11-19 07:42:14,745 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2022-11-19 07:42:14,746 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2022-11-19 07:42:14,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:14,770 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:42:14,817 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2022-11-19 07:42:14,820 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2022-11-19 07:42:14,821 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2022-11-19 07:42:14,822 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2022-11-19 07:42:14,836 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2022-11-19 07:42:14,840 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2022-11-19 07:42:14,844 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2022-11-19 07:42:14,848 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2022-11-19 07:42:14,849 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2022-11-19 07:42:14,850 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2022-11-19 07:42:14,851 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2022-11-19 07:42:14,852 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2022-11-19 07:42:14,852 WARN L234 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_48404b3c-50f2-41d5-9e19-5a05e951aee3/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2022-11-19 07:42:14,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:42:14,886 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:42:14,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14 WrapperNode [2022-11-19 07:42:14,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:42:14,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:14,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:42:14,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:42:14,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,942 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 227 [2022-11-19 07:42:14,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:42:14,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:42:14,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:42:14,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:42:14,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:14,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:15,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:15,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:15,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:15,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:42:15,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:42:15,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:42:15,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:42:15,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (1/1) ... [2022-11-19 07:42:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:42:15,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:15,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:42:15,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:42:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:42:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:42:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:42:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:42:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:42:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:42:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:42:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:42:15,252 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:42:15,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:42:15,877 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:42:15,979 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:42:15,979 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-19 07:42:15,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:15 BoogieIcfgContainer [2022-11-19 07:42:15,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:42:15,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:42:15,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:42:15,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:42:15,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:14" (1/3) ... [2022-11-19 07:42:15,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0ead86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:15, skipping insertion in model container [2022-11-19 07:42:15,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:14" (2/3) ... [2022-11-19 07:42:15,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0ead86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:15, skipping insertion in model container [2022-11-19 07:42:15,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:15" (3/3) ... [2022-11-19 07:42:15,991 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-01-1.i [2022-11-19 07:42:16,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:42:16,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-19 07:42:16,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:42:16,089 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@69c5d775, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:42:16,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-19 07:42:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:42:16,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:16,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:42:16,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 14698, now seen corresponding path program 1 times [2022-11-19 07:42:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:16,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582728628] [2022-11-19 07:42:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:16,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:16,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582728628] [2022-11-19 07:42:16,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582728628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:16,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:16,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:42:16,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629768390] [2022-11-19 07:42:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:16,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:16,373 INFO L87 Difference]: Start difference. First operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:16,639 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2022-11-19 07:42:16,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:16,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-19 07:42:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:16,651 INFO L225 Difference]: With dead ends: 169 [2022-11-19 07:42:16,651 INFO L226 Difference]: Without dead ends: 167 [2022-11-19 07:42:16,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:16,657 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 161 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:16,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 91 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-19 07:42:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2022-11-19 07:42:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 93 states have (on average 1.8709677419354838) internal successors, (174), 162 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 174 transitions. [2022-11-19 07:42:16,704 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 174 transitions. Word has length 2 [2022-11-19 07:42:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:16,705 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 174 transitions. [2022-11-19 07:42:16,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 174 transitions. [2022-11-19 07:42:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:42:16,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:16,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:42:16,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:42:16,707 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 14699, now seen corresponding path program 1 times [2022-11-19 07:42:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:16,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658986134] [2022-11-19 07:42:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:16,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658986134] [2022-11-19 07:42:16,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658986134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:16,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:16,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:42:16,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231432065] [2022-11-19 07:42:16,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:16,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:16,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:16,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:16,827 INFO L87 Difference]: Start difference. First operand 163 states and 174 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:17,004 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2022-11-19 07:42:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-19 07:42:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:17,013 INFO L225 Difference]: With dead ends: 190 [2022-11-19 07:42:17,014 INFO L226 Difference]: Without dead ends: 190 [2022-11-19 07:42:17,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:17,016 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 152 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:17,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 117 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-19 07:42:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 171. [2022-11-19 07:42:17,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 108 states have (on average 1.787037037037037) internal successors, (193), 170 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 193 transitions. [2022-11-19 07:42:17,046 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 193 transitions. Word has length 2 [2022-11-19 07:42:17,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:17,048 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 193 transitions. [2022-11-19 07:42:17,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 193 transitions. [2022-11-19 07:42:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:42:17,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:17,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:42:17,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:42:17,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash 14124170, now seen corresponding path program 1 times [2022-11-19 07:42:17,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192934977] [2022-11-19 07:42:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:17,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:17,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:17,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192934977] [2022-11-19 07:42:17,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192934977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:17,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:17,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:42:17,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302995501] [2022-11-19 07:42:17,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:17,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:17,137 INFO L87 Difference]: Start difference. First operand 171 states and 193 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:17,241 INFO L93 Difference]: Finished difference Result 186 states and 196 transitions. [2022-11-19 07:42:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:17,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:42:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:17,243 INFO L225 Difference]: With dead ends: 186 [2022-11-19 07:42:17,243 INFO L226 Difference]: Without dead ends: 186 [2022-11-19 07:42:17,243 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 [2022-11-19 07:42:17,245 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:17,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 154 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-19 07:42:17,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 169. [2022-11-19 07:42:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 168 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2022-11-19 07:42:17,257 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 4 [2022-11-19 07:42:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:17,257 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2022-11-19 07:42:17,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2022-11-19 07:42:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:42:17,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:17,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:17,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:42:17,259 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -106303121, now seen corresponding path program 1 times [2022-11-19 07:42:17,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:17,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667988897] [2022-11-19 07:42:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:17,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:17,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667988897] [2022-11-19 07:42:17,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667988897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:17,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:17,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:17,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271292553] [2022-11-19 07:42:17,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:17,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:17,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:17,539 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:17,768 INFO L93 Difference]: Finished difference Result 168 states and 189 transitions. [2022-11-19 07:42:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:42:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:17,770 INFO L225 Difference]: With dead ends: 168 [2022-11-19 07:42:17,770 INFO L226 Difference]: Without dead ends: 168 [2022-11-19 07:42:17,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:17,772 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:17,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 409 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:17,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-19 07:42:17,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-19 07:42:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 107 states have (on average 1.766355140186916) internal successors, (189), 167 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2022-11-19 07:42:17,781 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 9 [2022-11-19 07:42:17,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:17,782 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2022-11-19 07:42:17,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2022-11-19 07:42:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:42:17,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:17,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:17,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:42:17,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:17,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:17,784 INFO L85 PathProgramCache]: Analyzing trace with hash -106303120, now seen corresponding path program 1 times [2022-11-19 07:42:17,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:17,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186089690] [2022-11-19 07:42:17,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:17,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:18,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186089690] [2022-11-19 07:42:18,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186089690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:18,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:18,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:18,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232685313] [2022-11-19 07:42:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:18,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:18,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:18,121 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:18,365 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2022-11-19 07:42:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:18,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:42:18,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:18,367 INFO L225 Difference]: With dead ends: 167 [2022-11-19 07:42:18,367 INFO L226 Difference]: Without dead ends: 167 [2022-11-19 07:42:18,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:18,369 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:18,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 420 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-19 07:42:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-11-19 07:42:18,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 107 states have (on average 1.7570093457943925) internal successors, (188), 166 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 188 transitions. [2022-11-19 07:42:18,392 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 188 transitions. Word has length 9 [2022-11-19 07:42:18,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:18,392 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 188 transitions. [2022-11-19 07:42:18,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 188 transitions. [2022-11-19 07:42:18,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:42:18,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:18,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:18,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:42:18,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 922299713, now seen corresponding path program 1 times [2022-11-19 07:42:18,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:18,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869028789] [2022-11-19 07:42:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:18,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:18,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869028789] [2022-11-19 07:42:18,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869028789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:18,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:18,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:42:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864790695] [2022-11-19 07:42:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:18,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:42:18,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:42:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:42:18,650 INFO L87 Difference]: Start difference. First operand 167 states and 188 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:18,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:18,993 INFO L93 Difference]: Finished difference Result 167 states and 187 transitions. [2022-11-19 07:42:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:42:18,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:42:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:18,994 INFO L225 Difference]: With dead ends: 167 [2022-11-19 07:42:18,995 INFO L226 Difference]: Without dead ends: 167 [2022-11-19 07:42:18,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:18,996 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 145 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:18,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 431 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:42:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-19 07:42:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2022-11-19 07:42:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2022-11-19 07:42:19,002 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2022-11-19 07:42:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:19,002 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2022-11-19 07:42:19,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2022-11-19 07:42:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:42:19,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:19,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:19,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:42:19,004 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:19,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:19,004 INFO L85 PathProgramCache]: Analyzing trace with hash 922299714, now seen corresponding path program 1 times [2022-11-19 07:42:19,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:19,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002381781] [2022-11-19 07:42:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:19,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:19,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:19,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002381781] [2022-11-19 07:42:19,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002381781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:19,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:19,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:42:19,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991505545] [2022-11-19 07:42:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:19,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:42:19,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:42:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:42:19,405 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:19,884 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2022-11-19 07:42:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:42:19,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:42:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:19,885 INFO L225 Difference]: With dead ends: 166 [2022-11-19 07:42:19,886 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:42:19,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:19,887 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 142 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:19,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 431 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:42:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2022-11-19 07:42:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2022-11-19 07:42:19,892 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 11 [2022-11-19 07:42:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:19,892 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2022-11-19 07:42:19,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2022-11-19 07:42:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:42:19,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:19,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:19,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:42:19,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash 402977103, now seen corresponding path program 1 times [2022-11-19 07:42:19,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220554290] [2022-11-19 07:42:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:19,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:19,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220554290] [2022-11-19 07:42:19,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220554290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:19,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:19,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:42:19,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986001367] [2022-11-19 07:42:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:19,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:19,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:19,939 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:19,993 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2022-11-19 07:42:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:42:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:19,995 INFO L225 Difference]: With dead ends: 166 [2022-11-19 07:42:19,995 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:42:19,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:19,999 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:19,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:42:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:42:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 07:42:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2022-11-19 07:42:20,005 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2022-11-19 07:42:20,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:20,005 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2022-11-19 07:42:20,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2022-11-19 07:42:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:42:20,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:20,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:20,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:42:20,008 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash -392184971, now seen corresponding path program 1 times [2022-11-19 07:42:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:20,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294921745] [2022-11-19 07:42:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:20,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:20,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:20,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294921745] [2022-11-19 07:42:20,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294921745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:20,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:20,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:42:20,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191810036] [2022-11-19 07:42:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:20,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:20,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:20,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:20,128 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:20,300 INFO L93 Difference]: Finished difference Result 246 states and 272 transitions. [2022-11-19 07:42:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:20,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:42:20,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:20,302 INFO L225 Difference]: With dead ends: 246 [2022-11-19 07:42:20,302 INFO L226 Difference]: Without dead ends: 246 [2022-11-19 07:42:20,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:20,304 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 87 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:20,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 386 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-19 07:42:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 163. [2022-11-19 07:42:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.7358490566037736) internal successors, (184), 162 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2022-11-19 07:42:20,315 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 12 [2022-11-19 07:42:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:20,315 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2022-11-19 07:42:20,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2022-11-19 07:42:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:42:20,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:20,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:20,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:42:20,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash -975517286, now seen corresponding path program 1 times [2022-11-19 07:42:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:20,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048482429] [2022-11-19 07:42:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:20,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048482429] [2022-11-19 07:42:20,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048482429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:20,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:20,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49508712] [2022-11-19 07:42:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:20,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:42:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:42:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:42:20,461 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:20,617 INFO L93 Difference]: Finished difference Result 246 states and 271 transitions. [2022-11-19 07:42:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 07:42:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:20,619 INFO L225 Difference]: With dead ends: 246 [2022-11-19 07:42:20,619 INFO L226 Difference]: Without dead ends: 246 [2022-11-19 07:42:20,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:20,620 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:20,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 340 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-19 07:42:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 165. [2022-11-19 07:42:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2022-11-19 07:42:20,626 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 15 [2022-11-19 07:42:20,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:20,626 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2022-11-19 07:42:20,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2022-11-19 07:42:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:42:20,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:20,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:20,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:42:20,628 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:20,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash -635957056, now seen corresponding path program 1 times [2022-11-19 07:42:20,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:20,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554772609] [2022-11-19 07:42:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:20,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:20,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554772609] [2022-11-19 07:42:20,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554772609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:20,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:20,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:42:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617899624] [2022-11-19 07:42:20,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:42:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:42:20,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:42:20,867 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:21,143 INFO L93 Difference]: Finished difference Result 219 states and 232 transitions. [2022-11-19 07:42:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:21,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:42:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:21,145 INFO L225 Difference]: With dead ends: 219 [2022-11-19 07:42:21,145 INFO L226 Difference]: Without dead ends: 219 [2022-11-19 07:42:21,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:42:21,146 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 613 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:21,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 144 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-19 07:42:21,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 184. [2022-11-19 07:42:21,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.7165354330708662) internal successors, (218), 183 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 218 transitions. [2022-11-19 07:42:21,151 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 218 transitions. Word has length 16 [2022-11-19 07:42:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:21,152 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 218 transitions. [2022-11-19 07:42:21,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 218 transitions. [2022-11-19 07:42:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:42:21,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:21,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:21,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:42:21,153 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:21,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1269325843, now seen corresponding path program 1 times [2022-11-19 07:42:21,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:21,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491855270] [2022-11-19 07:42:21,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:21,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:21,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:21,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491855270] [2022-11-19 07:42:21,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491855270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:21,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:21,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:42:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181873098] [2022-11-19 07:42:21,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:21,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:42:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:42:21,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:42:21,222 INFO L87 Difference]: Start difference. First operand 184 states and 218 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:21,376 INFO L93 Difference]: Finished difference Result 214 states and 226 transitions. [2022-11-19 07:42:21,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:21,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:42:21,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:21,377 INFO L225 Difference]: With dead ends: 214 [2022-11-19 07:42:21,377 INFO L226 Difference]: Without dead ends: 214 [2022-11-19 07:42:21,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:21,379 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 198 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:21,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 214 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:21,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-19 07:42:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 182. [2022-11-19 07:42:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 126 states have (on average 1.7063492063492063) internal successors, (215), 181 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2022-11-19 07:42:21,385 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 18 [2022-11-19 07:42:21,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:21,385 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2022-11-19 07:42:21,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2022-11-19 07:42:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:42:21,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:21,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:21,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:42:21,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029620, now seen corresponding path program 1 times [2022-11-19 07:42:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:21,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119467048] [2022-11-19 07:42:21,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:21,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:21,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119467048] [2022-11-19 07:42:21,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119467048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:21,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:21,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:21,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665257579] [2022-11-19 07:42:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:21,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:21,528 INFO L87 Difference]: Start difference. First operand 182 states and 215 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:21,750 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2022-11-19 07:42:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:42:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:21,752 INFO L225 Difference]: With dead ends: 171 [2022-11-19 07:42:21,752 INFO L226 Difference]: Without dead ends: 171 [2022-11-19 07:42:21,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:42:21,753 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 84 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:21,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 248 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-19 07:42:21,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2022-11-19 07:42:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.5952380952380953) internal successors, (201), 169 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2022-11-19 07:42:21,758 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 18 [2022-11-19 07:42:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:21,758 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2022-11-19 07:42:21,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2022-11-19 07:42:21,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:42:21,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:21,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:21,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:42:21,759 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:21,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029619, now seen corresponding path program 1 times [2022-11-19 07:42:21,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:21,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112022796] [2022-11-19 07:42:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:21,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:21,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112022796] [2022-11-19 07:42:21,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112022796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:21,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:21,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:21,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562253973] [2022-11-19 07:42:21,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:21,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:21,953 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:22,181 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2022-11-19 07:42:22,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:42:22,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:42:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:22,182 INFO L225 Difference]: With dead ends: 162 [2022-11-19 07:42:22,183 INFO L226 Difference]: Without dead ends: 162 [2022-11-19 07:42:22,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:42:22,183 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 32 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:22,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 293 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:22,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-19 07:42:22,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2022-11-19 07:42:22,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 122 states have (on average 1.5327868852459017) internal successors, (187), 156 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 187 transitions. [2022-11-19 07:42:22,188 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 187 transitions. Word has length 18 [2022-11-19 07:42:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:22,188 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 187 transitions. [2022-11-19 07:42:22,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,188 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 187 transitions. [2022-11-19 07:42:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:42:22,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:22,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:42:22,189 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash 233249804, now seen corresponding path program 1 times [2022-11-19 07:42:22,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:22,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984180361] [2022-11-19 07:42:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:22,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:22,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984180361] [2022-11-19 07:42:22,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984180361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:22,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:22,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:42:22,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358823014] [2022-11-19 07:42:22,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:22,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:22,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:22,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:22,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:22,277 INFO L87 Difference]: Start difference. First operand 157 states and 187 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:22,428 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2022-11-19 07:42:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:42:22,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:42:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:22,430 INFO L225 Difference]: With dead ends: 158 [2022-11-19 07:42:22,430 INFO L226 Difference]: Without dead ends: 158 [2022-11-19 07:42:22,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:42:22,431 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 29 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:22,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 338 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-19 07:42:22,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 153. [2022-11-19 07:42:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 120 states have (on average 1.525) internal successors, (183), 152 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2022-11-19 07:42:22,440 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 20 [2022-11-19 07:42:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:22,441 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2022-11-19 07:42:22,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2022-11-19 07:42:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:42:22,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:22,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:22,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:42:22,444 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1038454311, now seen corresponding path program 1 times [2022-11-19 07:42:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:22,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13062842] [2022-11-19 07:42:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:22,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:22,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:22,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13062842] [2022-11-19 07:42:22,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13062842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:22,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:22,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:42:22,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336586350] [2022-11-19 07:42:22,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:22,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:22,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:22,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:22,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:22,493 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:22,543 INFO L93 Difference]: Finished difference Result 218 states and 263 transitions. [2022-11-19 07:42:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:22,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 07:42:22,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:22,545 INFO L225 Difference]: With dead ends: 218 [2022-11-19 07:42:22,546 INFO L226 Difference]: Without dead ends: 218 [2022-11-19 07:42:22,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:22,547 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 45 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:22,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 203 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:42:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-19 07:42:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 157. [2022-11-19 07:42:22,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 156 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2022-11-19 07:42:22,552 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 23 [2022-11-19 07:42:22,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:22,552 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2022-11-19 07:42:22,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,552 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2022-11-19 07:42:22,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 07:42:22,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:22,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:22,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:42:22,554 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:22,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:22,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1038456107, now seen corresponding path program 1 times [2022-11-19 07:42:22,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:22,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113517435] [2022-11-19 07:42:22,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:22,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:22,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:22,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113517435] [2022-11-19 07:42:22,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113517435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:22,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:22,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:42:22,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650323132] [2022-11-19 07:42:22,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:22,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:22,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:22,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:22,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:22,604 INFO L87 Difference]: Start difference. First operand 157 states and 189 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:22,662 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2022-11-19 07:42:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:22,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 07:42:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:22,664 INFO L225 Difference]: With dead ends: 155 [2022-11-19 07:42:22,664 INFO L226 Difference]: Without dead ends: 155 [2022-11-19 07:42:22,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:22,665 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 18 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:22,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 177 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-19 07:42:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-19 07:42:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 123 states have (on average 1.5121951219512195) internal successors, (186), 154 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2022-11-19 07:42:22,670 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 23 [2022-11-19 07:42:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:22,670 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2022-11-19 07:42:22,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2022-11-19 07:42:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:42:22,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:22,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:22,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 07:42:22,672 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:22,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2127372574, now seen corresponding path program 1 times [2022-11-19 07:42:22,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:22,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258554572] [2022-11-19 07:42:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:22,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:22,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:22,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258554572] [2022-11-19 07:42:22,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258554572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:22,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:22,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:42:22,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047913796] [2022-11-19 07:42:22,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:22,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:42:22,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:22,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:42:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:22,841 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:23,122 INFO L93 Difference]: Finished difference Result 246 states and 284 transitions. [2022-11-19 07:42:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:42:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 07:42:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:23,123 INFO L225 Difference]: With dead ends: 246 [2022-11-19 07:42:23,123 INFO L226 Difference]: Without dead ends: 246 [2022-11-19 07:42:23,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:42:23,124 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 263 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:23,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 323 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:23,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-19 07:42:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 166. [2022-11-19 07:42:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 165 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2022-11-19 07:42:23,128 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 24 [2022-11-19 07:42:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:23,129 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2022-11-19 07:42:23,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2022-11-19 07:42:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:42:23,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:23,130 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:42:23,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 07:42:23,130 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:23,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:23,130 INFO L85 PathProgramCache]: Analyzing trace with hash -52715562, now seen corresponding path program 1 times [2022-11-19 07:42:23,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:23,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106776448] [2022-11-19 07:42:23,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:23,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:23,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:23,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106776448] [2022-11-19 07:42:23,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106776448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:23,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921757570] [2022-11-19 07:42:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:23,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:23,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:23,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:42:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:23,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 07:42:23,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:23,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:23,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:23,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:23,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:23,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:23,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:42:23,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:42:23,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:42:23,826 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:23,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2022-11-19 07:42:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:23,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:24,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 07:42:24,442 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 14 treesize of output 12 [2022-11-19 07:42:24,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 07:42:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:24,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921757570] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:24,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668016263] [2022-11-19 07:42:24,489 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-19 07:42:24,489 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:24,493 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:24,499 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:24,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:42:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,553 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 [2022-11-19 07:42:24,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:42:24,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:42:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:24,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:24,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:24,957 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:42:27,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1668016263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:27,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:42:27,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 22 [2022-11-19 07:42:27,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964887551] [2022-11-19 07:42:27,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:27,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:42:27,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:27,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:42:27,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-19 07:42:27,145 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:28,043 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2022-11-19 07:42:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:42:28,044 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-19 07:42:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:28,045 INFO L225 Difference]: With dead ends: 220 [2022-11-19 07:42:28,045 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 07:42:28,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:42:28,046 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 132 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:28,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 311 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:42:28,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 07:42:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 188. [2022-11-19 07:42:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 156 states have (on average 1.4294871794871795) internal successors, (223), 187 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2022-11-19 07:42:28,051 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 26 [2022-11-19 07:42:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:28,052 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2022-11-19 07:42:28,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2022-11-19 07:42:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:42:28,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:28,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:28,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:28,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:28,258 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:28,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295682, now seen corresponding path program 1 times [2022-11-19 07:42:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520900601] [2022-11-19 07:42:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:28,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:28,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:28,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520900601] [2022-11-19 07:42:28,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520900601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:28,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:28,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:28,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285655671] [2022-11-19 07:42:28,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:28,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:42:28,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:28,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:42:28,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:28,604 INFO L87 Difference]: Start difference. First operand 188 states and 223 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:29,153 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2022-11-19 07:42:29,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:42:29,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:42:29,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:29,155 INFO L225 Difference]: With dead ends: 321 [2022-11-19 07:42:29,155 INFO L226 Difference]: Without dead ends: 321 [2022-11-19 07:42:29,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-19 07:42:29,156 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 515 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:29,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 488 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-19 07:42:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 197. [2022-11-19 07:42:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 167 states have (on average 1.3952095808383234) internal successors, (233), 196 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 233 transitions. [2022-11-19 07:42:29,161 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 233 transitions. Word has length 27 [2022-11-19 07:42:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:29,162 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 233 transitions. [2022-11-19 07:42:29,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 233 transitions. [2022-11-19 07:42:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:42:29,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:29,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:29,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 07:42:29,163 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:29,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295683, now seen corresponding path program 1 times [2022-11-19 07:42:29,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:29,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953113008] [2022-11-19 07:42:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:29,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:29,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:29,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953113008] [2022-11-19 07:42:29,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953113008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:29,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:29,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475120782] [2022-11-19 07:42:29,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:29,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:42:29,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:29,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:42:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:29,659 INFO L87 Difference]: Start difference. First operand 197 states and 233 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:30,537 INFO L93 Difference]: Finished difference Result 373 states and 415 transitions. [2022-11-19 07:42:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:42:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:42:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:30,539 INFO L225 Difference]: With dead ends: 373 [2022-11-19 07:42:30,540 INFO L226 Difference]: Without dead ends: 373 [2022-11-19 07:42:30,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:42:30,540 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 418 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:30,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 664 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:42:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-19 07:42:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 203. [2022-11-19 07:42:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 173 states have (on average 1.3872832369942196) internal successors, (240), 202 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 240 transitions. [2022-11-19 07:42:30,546 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 240 transitions. Word has length 27 [2022-11-19 07:42:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:30,546 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 240 transitions. [2022-11-19 07:42:30,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 240 transitions. [2022-11-19 07:42:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:42:30,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:30,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:30,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 07:42:30,548 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:30,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:30,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749567, now seen corresponding path program 1 times [2022-11-19 07:42:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:30,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014741839] [2022-11-19 07:42:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:30,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:30,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:30,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014741839] [2022-11-19 07:42:30,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014741839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:30,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:30,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:30,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638688451] [2022-11-19 07:42:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:30,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:30,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:30,663 INFO L87 Difference]: Start difference. First operand 203 states and 240 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:30,823 INFO L93 Difference]: Finished difference Result 202 states and 239 transitions. [2022-11-19 07:42:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:42:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:30,828 INFO L225 Difference]: With dead ends: 202 [2022-11-19 07:42:30,828 INFO L226 Difference]: Without dead ends: 202 [2022-11-19 07:42:30,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:30,829 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:30,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 301 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:30,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-19 07:42:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-11-19 07:42:30,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 173 states have (on average 1.3815028901734103) internal successors, (239), 201 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 239 transitions. [2022-11-19 07:42:30,835 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 239 transitions. Word has length 27 [2022-11-19 07:42:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:30,836 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 239 transitions. [2022-11-19 07:42:30,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 239 transitions. [2022-11-19 07:42:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:42:30,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:30,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:30,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 07:42:30,837 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749568, now seen corresponding path program 1 times [2022-11-19 07:42:30,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:30,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721504380] [2022-11-19 07:42:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:30,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:31,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:31,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721504380] [2022-11-19 07:42:31,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721504380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:31,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:31,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:31,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781808996] [2022-11-19 07:42:31,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:31,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:31,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:31,078 INFO L87 Difference]: Start difference. First operand 202 states and 239 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:31,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:31,258 INFO L93 Difference]: Finished difference Result 201 states and 238 transitions. [2022-11-19 07:42:31,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:42:31,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:31,259 INFO L225 Difference]: With dead ends: 201 [2022-11-19 07:42:31,259 INFO L226 Difference]: Without dead ends: 201 [2022-11-19 07:42:31,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:31,260 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:31,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 298 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-19 07:42:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-19 07:42:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3757225433526012) internal successors, (238), 200 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:31,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 238 transitions. [2022-11-19 07:42:31,264 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 238 transitions. Word has length 27 [2022-11-19 07:42:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:31,264 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 238 transitions. [2022-11-19 07:42:31,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 238 transitions. [2022-11-19 07:42:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:42:31,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:31,265 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:42:31,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 07:42:31,266 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:31,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:31,266 INFO L85 PathProgramCache]: Analyzing trace with hash -121860294, now seen corresponding path program 1 times [2022-11-19 07:42:31,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:31,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630843120] [2022-11-19 07:42:31,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:31,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:31,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:31,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:31,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630843120] [2022-11-19 07:42:31,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630843120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:31,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142181612] [2022-11-19 07:42:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:31,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:31,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:31,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:31,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:42:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:31,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 07:42:31,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:32,039 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:32,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2022-11-19 07:42:32,049 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:32,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 21 [2022-11-19 07:42:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:32,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:42:32,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142181612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:32,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:42:32,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-11-19 07:42:32,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757976398] [2022-11-19 07:42:32,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:32,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:42:32,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:32,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:42:32,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:42:32,136 INFO L87 Difference]: Start difference. First operand 201 states and 238 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:32,718 INFO L93 Difference]: Finished difference Result 304 states and 336 transitions. [2022-11-19 07:42:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:42:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:42:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:32,719 INFO L225 Difference]: With dead ends: 304 [2022-11-19 07:42:32,719 INFO L226 Difference]: Without dead ends: 301 [2022-11-19 07:42:32,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:42:32,720 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 250 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:32,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 573 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-19 07:42:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 201. [2022-11-19 07:42:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.369942196531792) internal successors, (237), 200 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 237 transitions. [2022-11-19 07:42:32,725 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 237 transitions. Word has length 29 [2022-11-19 07:42:32,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:32,726 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 237 transitions. [2022-11-19 07:42:32,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 237 transitions. [2022-11-19 07:42:32,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:42:32,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:32,727 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] [2022-11-19 07:42:32,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 07:42:32,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-19 07:42:32,933 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash -68526270, now seen corresponding path program 1 times [2022-11-19 07:42:32,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:32,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017386496] [2022-11-19 07:42:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:33,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:33,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017386496] [2022-11-19 07:42:33,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017386496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:33,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:33,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:42:33,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072626359] [2022-11-19 07:42:33,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:33,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:42:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:42:33,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:42:33,678 INFO L87 Difference]: Start difference. First operand 201 states and 237 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:34,733 INFO L93 Difference]: Finished difference Result 381 states and 415 transitions. [2022-11-19 07:42:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 07:42:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:42:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:34,735 INFO L225 Difference]: With dead ends: 381 [2022-11-19 07:42:34,735 INFO L226 Difference]: Without dead ends: 381 [2022-11-19 07:42:34,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:42:34,737 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 540 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:34,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 880 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:42:34,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-19 07:42:34,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 201. [2022-11-19 07:42:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3641618497109826) internal successors, (236), 200 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:34,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2022-11-19 07:42:34,742 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 29 [2022-11-19 07:42:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:34,743 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2022-11-19 07:42:34,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2022-11-19 07:42:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:42:34,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:34,744 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] [2022-11-19 07:42:34,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 07:42:34,744 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash -855629912, now seen corresponding path program 1 times [2022-11-19 07:42:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:34,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635932024] [2022-11-19 07:42:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:35,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:35,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635932024] [2022-11-19 07:42:35,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635932024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:35,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:35,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:35,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535030909] [2022-11-19 07:42:35,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:35,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:42:35,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:35,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:42:35,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:35,035 INFO L87 Difference]: Start difference. First operand 201 states and 236 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:35,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:35,374 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2022-11-19 07:42:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:42:35,375 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:42:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:35,376 INFO L225 Difference]: With dead ends: 201 [2022-11-19 07:42:35,376 INFO L226 Difference]: Without dead ends: 201 [2022-11-19 07:42:35,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:42:35,377 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 63 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:35,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 416 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:42:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-19 07:42:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2022-11-19 07:42:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2022-11-19 07:42:35,381 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2022-11-19 07:42:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:35,382 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2022-11-19 07:42:35,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2022-11-19 07:42:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:42:35,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:35,382 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] [2022-11-19 07:42:35,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 07:42:35,383 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -855629911, now seen corresponding path program 1 times [2022-11-19 07:42:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:35,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129589506] [2022-11-19 07:42:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:35,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:35,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129589506] [2022-11-19 07:42:35,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129589506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:35,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:35,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351422251] [2022-11-19 07:42:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:35,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:42:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:42:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:42:35,801 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:36,263 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2022-11-19 07:42:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:42:36,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:42:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:36,264 INFO L225 Difference]: With dead ends: 200 [2022-11-19 07:42:36,264 INFO L226 Difference]: Without dead ends: 200 [2022-11-19 07:42:36,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:42:36,265 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:36,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 521 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:42:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-19 07:42:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-11-19 07:42:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 173 states have (on average 1.3526011560693643) internal successors, (234), 198 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2022-11-19 07:42:36,269 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2022-11-19 07:42:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:36,269 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2022-11-19 07:42:36,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2022-11-19 07:42:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:42:36,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:36,270 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] [2022-11-19 07:42:36,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 07:42:36,270 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:36,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1262003309, now seen corresponding path program 1 times [2022-11-19 07:42:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:36,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197968183] [2022-11-19 07:42:36,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:36,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:36,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:36,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197968183] [2022-11-19 07:42:36,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197968183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:36,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:36,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:42:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158586379] [2022-11-19 07:42:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:36,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:42:36,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:42:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:36,312 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:36,374 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2022-11-19 07:42:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:42:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:42:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:36,376 INFO L225 Difference]: With dead ends: 200 [2022-11-19 07:42:36,376 INFO L226 Difference]: Without dead ends: 200 [2022-11-19 07:42:36,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:42:36,377 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:36,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-19 07:42:36,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-19 07:42:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2022-11-19 07:42:36,383 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2022-11-19 07:42:36,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:36,383 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2022-11-19 07:42:36,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:36,383 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2022-11-19 07:42:36,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:42:36,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:36,384 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:42:36,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 07:42:36,385 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:36,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:36,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1174961652, now seen corresponding path program 1 times [2022-11-19 07:42:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:36,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617105735] [2022-11-19 07:42:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:42:36,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:36,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617105735] [2022-11-19 07:42:36,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617105735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:36,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:36,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 07:42:36,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085139170] [2022-11-19 07:42:36,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:36,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:42:36,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:36,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:42:36,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:42:36,625 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:37,015 INFO L93 Difference]: Finished difference Result 265 states and 309 transitions. [2022-11-19 07:42:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:42:37,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 07:42:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:37,017 INFO L225 Difference]: With dead ends: 265 [2022-11-19 07:42:37,017 INFO L226 Difference]: Without dead ends: 265 [2022-11-19 07:42:37,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:42:37,018 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 202 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:37,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 545 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:42:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-19 07:42:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2022-11-19 07:42:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 187 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2022-11-19 07:42:37,022 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 30 [2022-11-19 07:42:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:37,022 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2022-11-19 07:42:37,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2022-11-19 07:42:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:42:37,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:37,027 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] [2022-11-19 07:42:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 07:42:37,028 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1990784287, now seen corresponding path program 1 times [2022-11-19 07:42:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:37,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170487571] [2022-11-19 07:42:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:37,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:37,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:37,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170487571] [2022-11-19 07:42:37,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170487571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:37,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:37,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:42:37,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228625454] [2022-11-19 07:42:37,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:37,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:37,125 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:37,305 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2022-11-19 07:42:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:37,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 07:42:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:37,307 INFO L225 Difference]: With dead ends: 190 [2022-11-19 07:42:37,307 INFO L226 Difference]: Without dead ends: 190 [2022-11-19 07:42:37,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:37,308 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 32 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:37,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 286 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:37,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-19 07:42:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2022-11-19 07:42:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3580246913580247) internal successors, (220), 187 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2022-11-19 07:42:37,315 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 30 [2022-11-19 07:42:37,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:37,315 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2022-11-19 07:42:37,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2022-11-19 07:42:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:42:37,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:37,316 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] [2022-11-19 07:42:37,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 07:42:37,317 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:37,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:37,317 INFO L85 PathProgramCache]: Analyzing trace with hash -467082512, now seen corresponding path program 1 times [2022-11-19 07:42:37,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:37,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783609330] [2022-11-19 07:42:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:37,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:37,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:37,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783609330] [2022-11-19 07:42:37,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783609330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:37,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:37,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:42:37,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622251481] [2022-11-19 07:42:37,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:37,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:37,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:37,460 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:37,632 INFO L93 Difference]: Finished difference Result 195 states and 229 transitions. [2022-11-19 07:42:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:42:37,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 07:42:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:37,633 INFO L225 Difference]: With dead ends: 195 [2022-11-19 07:42:37,634 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 07:42:37,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:42:37,634 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 10 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:37,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 306 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:42:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 07:42:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2022-11-19 07:42:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35625) internal successors, (217), 184 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2022-11-19 07:42:37,639 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 30 [2022-11-19 07:42:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:37,640 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2022-11-19 07:42:37,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:37,640 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2022-11-19 07:42:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:42:37,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:37,641 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] [2022-11-19 07:42:37,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 07:42:37,641 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1352456197, now seen corresponding path program 1 times [2022-11-19 07:42:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:37,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280445940] [2022-11-19 07:42:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:37,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:38,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:38,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280445940] [2022-11-19 07:42:38,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280445940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:38,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:38,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-19 07:42:38,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793343243] [2022-11-19 07:42:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:38,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:42:38,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:38,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:42:38,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:42:38,344 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:39,088 INFO L93 Difference]: Finished difference Result 272 states and 307 transitions. [2022-11-19 07:42:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:42:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 07:42:39,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:39,090 INFO L225 Difference]: With dead ends: 272 [2022-11-19 07:42:39,090 INFO L226 Difference]: Without dead ends: 272 [2022-11-19 07:42:39,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:42:39,091 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 395 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:39,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 755 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:42:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-19 07:42:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 185. [2022-11-19 07:42:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35) internal successors, (216), 184 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2022-11-19 07:42:39,096 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 32 [2022-11-19 07:42:39,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:39,097 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2022-11-19 07:42:39,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2022-11-19 07:42:39,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:42:39,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:39,098 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:42:39,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-19 07:42:39,098 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:39,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1602252178, now seen corresponding path program 1 times [2022-11-19 07:42:39,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:39,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190844593] [2022-11-19 07:42:39,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:39,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:39,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:39,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190844593] [2022-11-19 07:42:39,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190844593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:39,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481608355] [2022-11-19 07:42:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:39,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:39,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:39,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:42:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:39,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:42:39,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:39,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:39,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:39,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:39,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:39,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:42:39,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:42:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:39,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:39,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481608355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:39,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [467392998] [2022-11-19 07:42:39,734 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-19 07:42:39,735 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:39,735 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:39,736 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:39,736 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:42:39,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,783 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 [2022-11-19 07:42:39,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:39,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:42:39,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:39,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:42:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:39,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:40,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:40,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:40,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:40,284 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:42:42,582 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13671#(and (or (not (= |ULTIMATE.start_main_~list~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~list~0#1.base| 0))) (<= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:42:42,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:42:42,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:42:42,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 7 [2022-11-19 07:42:42,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167828049] [2022-11-19 07:42:42,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:42:42,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:42:42,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:42,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:42:42,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:42:42,584 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:43,005 INFO L93 Difference]: Finished difference Result 285 states and 312 transitions. [2022-11-19 07:42:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:42:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-19 07:42:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:43,007 INFO L225 Difference]: With dead ends: 285 [2022-11-19 07:42:43,008 INFO L226 Difference]: Without dead ends: 285 [2022-11-19 07:42:43,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2022-11-19 07:42:43,009 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 158 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:43,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 413 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:42:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-19 07:42:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 220. [2022-11-19 07:42:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 219 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 270 transitions. [2022-11-19 07:42:43,014 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 270 transitions. Word has length 34 [2022-11-19 07:42:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:43,014 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 270 transitions. [2022-11-19 07:42:43,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 270 transitions. [2022-11-19 07:42:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:42:43,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:43,020 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] [2022-11-19 07:42:43,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:43,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:43,226 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1602248556, now seen corresponding path program 1 times [2022-11-19 07:42:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:43,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662949813] [2022-11-19 07:42:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:43,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:43,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662949813] [2022-11-19 07:42:43,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662949813] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:43,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70753932] [2022-11-19 07:42:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:43,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:43,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:43,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:42:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:43,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:42:43,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:43,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:42:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:43,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:42:43,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70753932] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:43,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [370579789] [2022-11-19 07:42:43,646 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-19 07:42:43,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:43,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:43,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:43,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:42:43,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,679 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 [2022-11-19 07:42:43,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:43,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:42:43,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:43,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:42:43,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:43,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:44,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:44,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:44,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:42:44,176 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:42:46,241 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14406#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-19 07:42:46,241 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:42:46,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:42:46,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2022-11-19 07:42:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411001448] [2022-11-19 07:42:46,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:42:46,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:42:46,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:42:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:42:46,243 INFO L87 Difference]: Start difference. First operand 220 states and 270 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:46,351 INFO L93 Difference]: Finished difference Result 223 states and 272 transitions. [2022-11-19 07:42:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:42:46,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-19 07:42:46,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:46,353 INFO L225 Difference]: With dead ends: 223 [2022-11-19 07:42:46,353 INFO L226 Difference]: Without dead ends: 204 [2022-11-19 07:42:46,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 73 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:42:46,354 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:46,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 50 Unchecked, 0.1s Time] [2022-11-19 07:42:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-19 07:42:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-19 07:42:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 179 states have (on average 1.4134078212290502) internal successors, (253), 203 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2022-11-19 07:42:46,359 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 34 [2022-11-19 07:42:46,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:46,359 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2022-11-19 07:42:46,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2022-11-19 07:42:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:42:46,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:46,360 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] [2022-11-19 07:42:46,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:42:46,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:46,565 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2125355099, now seen corresponding path program 1 times [2022-11-19 07:42:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:46,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452003875] [2022-11-19 07:42:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:46,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:46,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:46,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452003875] [2022-11-19 07:42:46,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452003875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:46,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390467001] [2022-11-19 07:42:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:46,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:46,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:46,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:46,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:42:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:46,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:42:46,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:46,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:46,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390467001] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:42:46,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [844981581] [2022-11-19 07:42:46,818 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-19 07:42:46,819 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:42:46,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:42:46,819 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:42:46,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:42:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,847 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 [2022-11-19 07:42:46,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:42:46,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:46,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:42:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,939 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 29 treesize of output 35 [2022-11-19 07:42:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:42:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:46,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:42:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,033 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:42:47,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-19 07:42:47,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,049 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-19 07:42:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-19 07:42:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:42:47,115 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:42:47,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-19 07:42:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,144 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 07:42:47,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-19 07:42:47,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:42:47,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-11-19 07:42:47,645 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:42:51,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [844981581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:51,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:42:51,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 24 [2022-11-19 07:42:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434599610] [2022-11-19 07:42:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:51,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:42:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:51,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:42:51,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:42:51,860 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:54,393 INFO L93 Difference]: Finished difference Result 228 states and 269 transitions. [2022-11-19 07:42:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-19 07:42:54,398 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-19 07:42:54,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:54,400 INFO L225 Difference]: With dead ends: 228 [2022-11-19 07:42:54,400 INFO L226 Difference]: Without dead ends: 228 [2022-11-19 07:42:54,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2022-11-19 07:42:54,402 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 125 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:54,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 629 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:42:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-19 07:42:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2022-11-19 07:42:54,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 185 states have (on average 1.3945945945945946) internal successors, (258), 209 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2022-11-19 07:42:54,423 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 36 [2022-11-19 07:42:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:54,423 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2022-11-19 07:42:54,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2022-11-19 07:42:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:42:54,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:54,424 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:42:54,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 07:42:54,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-19 07:42:54,636 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:54,637 INFO L85 PathProgramCache]: Analyzing trace with hash 586306947, now seen corresponding path program 1 times [2022-11-19 07:42:54,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:54,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560255138] [2022-11-19 07:42:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:54,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:54,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560255138] [2022-11-19 07:42:54,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560255138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:42:54,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:42:54,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:42:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125196572] [2022-11-19 07:42:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:42:54,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:42:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:42:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:42:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:42:54,776 INFO L87 Difference]: Start difference. First operand 210 states and 258 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:42:54,909 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2022-11-19 07:42:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:42:54,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-19 07:42:54,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:42:54,911 INFO L225 Difference]: With dead ends: 220 [2022-11-19 07:42:54,911 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 07:42:54,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:42:54,912 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 9 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:42:54,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 252 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:42:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 07:42:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 212. [2022-11-19 07:42:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 187 states have (on average 1.3903743315508021) internal successors, (260), 211 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 260 transitions. [2022-11-19 07:42:54,916 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 260 transitions. Word has length 40 [2022-11-19 07:42:54,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:42:54,917 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 260 transitions. [2022-11-19 07:42:54,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:42:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 260 transitions. [2022-11-19 07:42:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 07:42:54,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:42:54,917 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:42:54,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-19 07:42:54,918 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:42:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:42:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1230011898, now seen corresponding path program 1 times [2022-11-19 07:42:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:42:54,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038835585] [2022-11-19 07:42:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:42:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:55,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:42:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038835585] [2022-11-19 07:42:55,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038835585] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:42:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075387917] [2022-11-19 07:42:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:42:55,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:42:55,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:42:55,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:42:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:42:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:42:55,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-19 07:42:55,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:42:55,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:42:55,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:42:55,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:42:56,035 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:42:56,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:42:56,111 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:42:56,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:42:56,139 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:42:56,140 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 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:42:56,383 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:42:56,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2022-11-19 07:42:56,401 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:42:56,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2022-11-19 07:42:56,646 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:42:56,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2022-11-19 07:42:56,666 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:42:56,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2022-11-19 07:42:57,121 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:57,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2022-11-19 07:42:57,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2022-11-19 07:42:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:42:57,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:42:59,217 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 07:42:59,217 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 43 [2022-11-19 07:42:59,243 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 07:42:59,244 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 42 [2022-11-19 07:42:59,258 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:59,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 69 [2022-11-19 07:42:59,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2022-11-19 07:42:59,273 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 16 treesize of output 12 [2022-11-19 07:42:59,280 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 11 treesize of output 7 [2022-11-19 07:42:59,344 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 07:42:59,344 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 55 [2022-11-19 07:42:59,354 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:42:59,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 76 [2022-11-19 07:42:59,360 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 28 treesize of output 20 [2022-11-19 07:43:09,685 WARN L233 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 21 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:09,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075387917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:09,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [230595019] [2022-11-19 07:43:09,714 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-19 07:43:09,715 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:43:09,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:43:09,715 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:43:09,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:43:09,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,744 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 [2022-11-19 07:43:09,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:09,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:09,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:09,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:09,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:09,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,900 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 29 treesize of output 35 [2022-11-19 07:43:09,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:09,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:09,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:09,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:09,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:09,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,008 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-19 07:43:10,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 33 [2022-11-19 07:43:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,032 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:43:10,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 77 treesize of output 59 [2022-11-19 07:43:10,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:10,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-19 07:43:10,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-19 07:43:10,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 07:43:10,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,408 INFO L321 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2022-11-19 07:43:10,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 219 treesize of output 142 [2022-11-19 07:43:10,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2022-11-19 07:43:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:10,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,710 INFO L321 Elim1Store]: treesize reduction 62, result has 25.3 percent of original size [2022-11-19 07:43:10,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 476 treesize of output 396 [2022-11-19 07:43:10,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:10,799 INFO L321 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size [2022-11-19 07:43:10,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 468 treesize of output 473 [2022-11-19 07:43:10,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:10,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 445 [2022-11-19 07:43:11,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:11,304 INFO L321 Elim1Store]: treesize reduction 278, result has 12.0 percent of original size [2022-11-19 07:43:11,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 492 treesize of output 499 [2022-11-19 07:43:11,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:11,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:11,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,502 INFO L321 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-11-19 07:43:11,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 595 treesize of output 588 [2022-11-19 07:43:11,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:11,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:11,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,665 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-19 07:43:11,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 587 treesize of output 467 [2022-11-19 07:43:11,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:11,719 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:43:11,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 518 treesize of output 501 [2022-11-19 07:43:12,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:12,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:12,169 INFO L321 Elim1Store]: treesize reduction 194, result has 20.2 percent of original size [2022-11-19 07:43:12,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 808 treesize of output 506 [2022-11-19 07:43:12,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:12,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:12,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:12,391 INFO L321 Elim1Store]: treesize reduction 306, result has 20.9 percent of original size [2022-11-19 07:43:12,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 736 treesize of output 716 [2022-11-19 07:43:12,468 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:43:12,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 716 treesize of output 699 [2022-11-19 07:43:12,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:12,950 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 19 treesize of output 1 [2022-11-19 07:43:12,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:12,990 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:12,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:12,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 07:43:13,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:13,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:13,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:13,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:13,071 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:13,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-19 07:43:13,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:43:13,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:13,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:13,174 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 19 treesize of output 1 [2022-11-19 07:43:13,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:13,371 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-19 07:43:13,371 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 179 treesize of output 216 [2022-11-19 07:43:13,697 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:13,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 111 [2022-11-19 07:43:13,741 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:13,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:13,774 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:43:13,796 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:13,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:13,825 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:13,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:13,886 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:13,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 122 [2022-11-19 07:43:13,961 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:13,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:14,018 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:14,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:14,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:14,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:14,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:14,163 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:14,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-19 07:43:14,189 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:43:14,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-19 07:43:14,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:14,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:43:17,409 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16242#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-19 07:43:17,409 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:43:17,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:43:17,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 33 [2022-11-19 07:43:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970214754] [2022-11-19 07:43:17,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:43:17,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-19 07:43:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-19 07:43:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=2829, Unknown=26, NotChecked=0, Total=3192 [2022-11-19 07:43:17,412 INFO L87 Difference]: Start difference. First operand 212 states and 260 transitions. Second operand has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:18,453 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2022-11-19 07:43:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:43:18,453 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-19 07:43:18,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:18,455 INFO L225 Difference]: With dead ends: 287 [2022-11-19 07:43:18,455 INFO L226 Difference]: Without dead ends: 287 [2022-11-19 07:43:18,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=456, Invalid=4072, Unknown=28, NotChecked=0, Total=4556 [2022-11-19 07:43:18,457 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 384 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 508 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:18,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1019 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 411 Invalid, 0 Unknown, 508 Unchecked, 0.4s Time] [2022-11-19 07:43:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-19 07:43:18,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 261. [2022-11-19 07:43:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 236 states have (on average 1.3347457627118644) internal successors, (315), 260 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 315 transitions. [2022-11-19 07:43:18,462 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 315 transitions. Word has length 41 [2022-11-19 07:43:18,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:18,462 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 315 transitions. [2022-11-19 07:43:18,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,463 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 315 transitions. [2022-11-19 07:43:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 07:43:18,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:18,463 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] [2022-11-19 07:43:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:18,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-19 07:43:18,669 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -537734687, now seen corresponding path program 1 times [2022-11-19 07:43:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624308488] [2022-11-19 07:43:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:43:18,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:18,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624308488] [2022-11-19 07:43:18,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624308488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:18,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:18,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:43:18,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397109250] [2022-11-19 07:43:18,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:18,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:43:18,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:18,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:43:18,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:18,715 INFO L87 Difference]: Start difference. First operand 261 states and 315 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:18,799 INFO L93 Difference]: Finished difference Result 261 states and 312 transitions. [2022-11-19 07:43:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:43:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-19 07:43:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:18,801 INFO L225 Difference]: With dead ends: 261 [2022-11-19 07:43:18,801 INFO L226 Difference]: Without dead ends: 261 [2022-11-19 07:43:18,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:18,802 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 70 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:18,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 103 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:43:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-19 07:43:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2022-11-19 07:43:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 258 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 310 transitions. [2022-11-19 07:43:18,808 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 310 transitions. Word has length 43 [2022-11-19 07:43:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:18,808 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 310 transitions. [2022-11-19 07:43:18,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 310 transitions. [2022-11-19 07:43:18,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 07:43:18,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:18,809 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] [2022-11-19 07:43:18,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-19 07:43:18,809 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash -978753858, now seen corresponding path program 1 times [2022-11-19 07:43:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529491085] [2022-11-19 07:43:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:19,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529491085] [2022-11-19 07:43:19,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529491085] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:43:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936659905] [2022-11-19 07:43:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:19,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:19,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:19,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:43:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:19,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 07:43:19,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:19,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:43:19,399 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:19,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:19,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:19,530 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:19,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-19 07:43:19,627 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:19,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-19 07:43:19,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:19,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 07:43:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:19,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:43:22,259 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:22,259 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-11-19 07:43:22,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:22,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-11-19 07:43:22,278 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 11 treesize of output 9 [2022-11-19 07:43:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:27,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936659905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:27,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1821569908] [2022-11-19 07:43:27,057 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-19 07:43:27,057 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:43:27,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:43:27,058 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:43:27,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:43:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,086 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 [2022-11-19 07:43:27,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:27,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:27,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:27,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:27,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,240 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 29 treesize of output 35 [2022-11-19 07:43:27,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:27,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,351 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-19 07:43:27,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 33 [2022-11-19 07:43:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:27,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,394 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:43:27,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 77 treesize of output 59 [2022-11-19 07:43:27,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:27,475 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:43:27,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 71 [2022-11-19 07:43:27,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-19 07:43:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 52 [2022-11-19 07:43:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:27,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:27,674 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-19 07:43:27,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 141 treesize of output 110 [2022-11-19 07:43:27,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:27,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:27,808 INFO L321 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2022-11-19 07:43:27,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 219 treesize of output 142 [2022-11-19 07:43:27,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:27,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2022-11-19 07:43:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,075 INFO L321 Elim1Store]: treesize reduction 62, result has 25.3 percent of original size [2022-11-19 07:43:28,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 456 treesize of output 396 [2022-11-19 07:43:28,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 433 [2022-11-19 07:43:28,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:28,176 INFO L321 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size [2022-11-19 07:43:28,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 448 treesize of output 453 [2022-11-19 07:43:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:28,821 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-19 07:43:28,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 885 treesize of output 855 [2022-11-19 07:43:29,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:29,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:29,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,095 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-19 07:43:29,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 1046 treesize of output 858 [2022-11-19 07:43:29,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,176 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:43:29,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1041 treesize of output 1008 [2022-11-19 07:43:29,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:29,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,301 INFO L321 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-11-19 07:43:29,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 1046 treesize of output 1003 [2022-11-19 07:43:29,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:29,908 INFO L321 Elim1Store]: treesize reduction 194, result has 20.2 percent of original size [2022-11-19 07:43:29,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 808 treesize of output 506 [2022-11-19 07:43:30,020 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:43:30,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 740 treesize of output 723 [2022-11-19 07:43:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:30,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:30,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:30,287 INFO L321 Elim1Store]: treesize reduction 306, result has 20.9 percent of original size [2022-11-19 07:43:30,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 736 treesize of output 716 [2022-11-19 07:43:30,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:30,721 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 19 treesize of output 1 [2022-11-19 07:43:30,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:30,765 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:43:30,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 07:43:30,798 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:30,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:30,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:30,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:30,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:30,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:30,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:43:30,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:30,878 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:30,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-19 07:43:30,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:30,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:30,951 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 19 treesize of output 1 [2022-11-19 07:43:31,175 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-19 07:43:31,175 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 179 treesize of output 216 [2022-11-19 07:43:31,558 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:31,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:31,591 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:43:31,634 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:31,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:31,665 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:31,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:31,721 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:31,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:31,766 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:31,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:31,795 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:31,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:31,845 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:31,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:31,904 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:31,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 172 [2022-11-19 07:43:32,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:32,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:32,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:32,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:32,067 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:43:32,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-19 07:43:32,088 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:32,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-19 07:43:32,134 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:43:35,094 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17639#(and (= |ULTIMATE.start_main_~len~0#1| 0) (not (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:43:35,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:43:35,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:43:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2022-11-19 07:43:35,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160365397] [2022-11-19 07:43:35,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:43:35,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 07:43:35,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 07:43:35,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=2125, Unknown=4, NotChecked=0, Total=2352 [2022-11-19 07:43:35,096 INFO L87 Difference]: Start difference. First operand 259 states and 310 transitions. Second operand has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:36,096 INFO L93 Difference]: Finished difference Result 548 states and 635 transitions. [2022-11-19 07:43:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:43:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-19 07:43:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:36,101 INFO L225 Difference]: With dead ends: 548 [2022-11-19 07:43:36,101 INFO L226 Difference]: Without dead ends: 548 [2022-11-19 07:43:36,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1070 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=281, Invalid=2577, Unknown=4, NotChecked=0, Total=2862 [2022-11-19 07:43:36,103 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 818 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 872 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:36,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1046 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 803 Invalid, 0 Unknown, 872 Unchecked, 0.8s Time] [2022-11-19 07:43:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-19 07:43:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 324. [2022-11-19 07:43:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 300 states have (on average 1.35) internal successors, (405), 323 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 405 transitions. [2022-11-19 07:43:36,129 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 405 transitions. Word has length 43 [2022-11-19 07:43:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:36,129 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 405 transitions. [2022-11-19 07:43:36,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 405 transitions. [2022-11-19 07:43:36,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 07:43:36,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:36,131 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] [2022-11-19 07:43:36,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:36,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-19 07:43:36,338 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:36,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash -978753857, now seen corresponding path program 1 times [2022-11-19 07:43:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:36,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612352340] [2022-11-19 07:43:36,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:36,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:36,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:36,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612352340] [2022-11-19 07:43:36,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612352340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:43:36,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018777191] [2022-11-19 07:43:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:36,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:36,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:36,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:36,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:43:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:36,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-19 07:43:36,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:36,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:43:37,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:43:37,081 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:43:37,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:43:37,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:37,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:37,260 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:37,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-19 07:43:37,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:37,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 07:43:37,390 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:37,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-19 07:43:37,401 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 18 treesize of output 20 [2022-11-19 07:43:37,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:37,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 07:43:37,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:37,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:43:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:37,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:43:38,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:38,557 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-11-19 07:43:38,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:38,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-11-19 07:43:38,577 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 11 treesize of output 9 [2022-11-19 07:43:38,641 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:38,641 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2022-11-19 07:43:38,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:38,651 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-11-19 07:43:38,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:38,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:38,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-11-19 07:43:38,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:38,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:38,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-19 07:43:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:39,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018777191] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:39,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1764034221] [2022-11-19 07:43:39,057 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-19 07:43:39,057 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:43:39,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:43:39,058 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:43:39,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:43:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,085 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 [2022-11-19 07:43:39,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:39,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:39,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:39,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:39,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:39,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,245 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 29 treesize of output 35 [2022-11-19 07:43:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:39,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:43:39,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,344 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-19 07:43:39,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 77 treesize of output 59 [2022-11-19 07:43:39,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:39,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:43:39,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:39,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-19 07:43:39,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 07:43:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:39,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:43:39,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:39,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:39,709 INFO L321 Elim1Store]: treesize reduction 148, result has 21.7 percent of original size [2022-11-19 07:43:39,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 278 treesize of output 177 [2022-11-19 07:43:39,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,813 INFO L321 Elim1Store]: treesize reduction 134, result has 22.5 percent of original size [2022-11-19 07:43:39,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 225 treesize of output 187 [2022-11-19 07:43:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:39,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:39,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:40,037 INFO L321 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2022-11-19 07:43:40,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 480 treesize of output 400 [2022-11-19 07:43:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:40,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:40,125 INFO L321 Elim1Store]: treesize reduction 136, result has 17.6 percent of original size [2022-11-19 07:43:40,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 472 treesize of output 473 [2022-11-19 07:43:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 470 treesize of output 449 [2022-11-19 07:43:40,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,687 INFO L321 Elim1Store]: treesize reduction 278, result has 12.0 percent of original size [2022-11-19 07:43:40,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 933 treesize of output 908 [2022-11-19 07:43:40,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:40,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,065 INFO L321 Elim1Store]: treesize reduction 180, result has 19.3 percent of original size [2022-11-19 07:43:41,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 1132 treesize of output 872 [2022-11-19 07:43:41,158 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:43:41,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 999 treesize of output 966 [2022-11-19 07:43:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:41,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:41,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,328 INFO L321 Elim1Store]: treesize reduction 236, result has 14.2 percent of original size [2022-11-19 07:43:41,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 case distinctions, treesize of input 1004 treesize of output 953 [2022-11-19 07:43:41,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,958 INFO L321 Elim1Store]: treesize reduction 464, result has 12.3 percent of original size [2022-11-19 07:43:41,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 867 treesize of output 547 [2022-11-19 07:43:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:41,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:41,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:42,336 INFO L321 Elim1Store]: treesize reduction 590, result has 13.9 percent of original size [2022-11-19 07:43:42,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 771 treesize of output 751 [2022-11-19 07:43:42,424 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:43:42,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 743 treesize of output 726 [2022-11-19 07:43:42,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:42,820 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 19 treesize of output 1 [2022-11-19 07:43:42,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:42,867 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:42,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:42,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 07:43:42,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:42,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:42,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:42,945 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:42,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-19 07:43:42,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:43:42,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:43,017 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 19 treesize of output 1 [2022-11-19 07:43:43,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:43,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:43,251 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-19 07:43:43,251 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 179 treesize of output 216 [2022-11-19 07:43:43,501 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:43,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:43,561 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:43,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:43,615 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:43,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:43,646 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:43:43,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:43:43,675 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:43:43,733 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:43,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:43,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:43,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:43,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:43,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:43:43,874 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:43:43,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-19 07:43:43,896 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:43:43,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-19 07:43:43,949 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:43:47,328 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18824#(and (or (not (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|))) (not (<= 0 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~len~0#1| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:43:47,328 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:43:47,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:43:47,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 25 [2022-11-19 07:43:47,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454431758] [2022-11-19 07:43:47,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:43:47,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 07:43:47,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:47,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 07:43:47,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2257, Unknown=4, NotChecked=0, Total=2450 [2022-11-19 07:43:47,331 INFO L87 Difference]: Start difference. First operand 324 states and 405 transitions. Second operand has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:49,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:49,489 INFO L93 Difference]: Finished difference Result 464 states and 526 transitions. [2022-11-19 07:43:49,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 07:43:49,489 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-19 07:43:49,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:49,491 INFO L225 Difference]: With dead ends: 464 [2022-11-19 07:43:49,491 INFO L226 Difference]: Without dead ends: 464 [2022-11-19 07:43:49,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=417, Invalid=4135, Unknown=4, NotChecked=0, Total=4556 [2022-11-19 07:43:49,493 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 972 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 580 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:49,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 960 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1187 Invalid, 0 Unknown, 580 Unchecked, 1.1s Time] [2022-11-19 07:43:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-19 07:43:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 339. [2022-11-19 07:43:49,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 315 states have (on average 1.3587301587301588) internal successors, (428), 338 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 428 transitions. [2022-11-19 07:43:49,501 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 428 transitions. Word has length 43 [2022-11-19 07:43:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:49,501 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 428 transitions. [2022-11-19 07:43:49,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 428 transitions. [2022-11-19 07:43:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:43:49,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:49,502 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] [2022-11-19 07:43:49,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:49,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-19 07:43:49,708 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 510098320, now seen corresponding path program 1 times [2022-11-19 07:43:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842824088] [2022-11-19 07:43:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:43:49,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:49,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842824088] [2022-11-19 07:43:49,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842824088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:49,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:49,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:43:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532199483] [2022-11-19 07:43:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:49,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:43:49,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:43:49,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:43:49,973 INFO L87 Difference]: Start difference. First operand 339 states and 428 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:50,349 INFO L93 Difference]: Finished difference Result 350 states and 433 transitions. [2022-11-19 07:43:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:43:50,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 07:43:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:50,351 INFO L225 Difference]: With dead ends: 350 [2022-11-19 07:43:50,352 INFO L226 Difference]: Without dead ends: 350 [2022-11-19 07:43:50,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:43:50,353 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 321 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:50,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 216 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:43:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-19 07:43:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 339. [2022-11-19 07:43:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 315 states have (on average 1.3555555555555556) internal successors, (427), 338 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 427 transitions. [2022-11-19 07:43:50,373 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 427 transitions. Word has length 44 [2022-11-19 07:43:50,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:50,374 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 427 transitions. [2022-11-19 07:43:50,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 427 transitions. [2022-11-19 07:43:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:43:50,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:50,376 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] [2022-11-19 07:43:50,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-19 07:43:50,377 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:50,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:50,377 INFO L85 PathProgramCache]: Analyzing trace with hash 510098321, now seen corresponding path program 1 times [2022-11-19 07:43:50,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:50,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026316530] [2022-11-19 07:43:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:50,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:43:50,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:50,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026316530] [2022-11-19 07:43:50,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026316530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:50,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:50,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:43:50,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441234257] [2022-11-19 07:43:50,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:50,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:43:50,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:43:50,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:43:50,791 INFO L87 Difference]: Start difference. First operand 339 states and 427 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:51,250 INFO L93 Difference]: Finished difference Result 353 states and 436 transitions. [2022-11-19 07:43:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:43:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 07:43:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:51,253 INFO L225 Difference]: With dead ends: 353 [2022-11-19 07:43:51,253 INFO L226 Difference]: Without dead ends: 353 [2022-11-19 07:43:51,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:43:51,254 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 238 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:51,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 285 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:43:51,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-19 07:43:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 339. [2022-11-19 07:43:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 315 states have (on average 1.3492063492063493) internal successors, (425), 338 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 425 transitions. [2022-11-19 07:43:51,262 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 425 transitions. Word has length 44 [2022-11-19 07:43:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:51,262 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 425 transitions. [2022-11-19 07:43:51,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:43:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 425 transitions. [2022-11-19 07:43:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:43:51,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:51,263 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:43:51,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-19 07:43:51,264 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:43:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash -907190750, now seen corresponding path program 1 times [2022-11-19 07:43:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:51,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77515901] [2022-11-19 07:43:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:51,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:52,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:52,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77515901] [2022-11-19 07:43:52,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77515901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:43:52,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341235423] [2022-11-19 07:43:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:52,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:52,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:52,024 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:52,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 07:43:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:52,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-19 07:43:52,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:52,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:43:52,297 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:43:52,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:43:52,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:43:52,478 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:52,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-19 07:43:52,569 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:52,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-19 07:43:52,724 INFO L321 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-11-19 07:43:52,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 45 [2022-11-19 07:43:52,824 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:43:52,824 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 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-19 07:43:53,093 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:53,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 100 [2022-11-19 07:43:53,455 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:43:53,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 100 [2022-11-19 07:43:53,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-11-19 07:43:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:53,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:43:53,996 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1)) is different from false [2022-11-19 07:43:54,033 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1)) is different from false [2022-11-19 07:43:56,050 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1331 (Array Int Int))) (= (select |c_#valid| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1)) is different from false [2022-11-19 07:43:56,116 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1331 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1))) is different from false [2022-11-19 07:43:56,160 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1326 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1331 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1326))) (store .cse0 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1))) is different from false [2022-11-19 07:43:56,465 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:43:56,466 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 66 [2022-11-19 07:43:56,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:56,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 282 [2022-11-19 07:43:56,489 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 314 treesize of output 298 [2022-11-19 07:43:56,501 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 298 treesize of output 270 [2022-11-19 07:43:56,512 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 236 treesize of output 212 [2022-11-19 07:43:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:56,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341235423] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:56,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1519593102] [2022-11-19 07:43:56,937 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:43:56,937 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:43:56,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:43:56,938 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:43:56,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:43:56,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:56,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:56,964 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 [2022-11-19 07:43:56,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:56,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:56,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:43:57,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,034 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 29 treesize of output 35 [2022-11-19 07:43:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:57,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:43:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:57,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,135 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:43:57,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-19 07:43:57,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,154 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-19 07:43:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-19 07:43:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,227 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:43:57,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-19 07:43:57,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,260 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 07:43:57,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-19 07:43:57,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 07:43:57,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2022-11-19 07:43:57,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,464 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-19 07:43:57,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 111 [2022-11-19 07:43:57,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2022-11-19 07:43:57,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:57,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,564 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 07:43:57,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 199 treesize of output 130 [2022-11-19 07:43:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 65 [2022-11-19 07:43:57,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,706 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-11-19 07:43:57,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 208 treesize of output 142 [2022-11-19 07:43:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-19 07:43:57,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:43:57,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 66 [2022-11-19 07:43:57,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:57,950 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-19 07:43:57,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 290 treesize of output 190 [2022-11-19 07:43:57,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:57,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-19 07:43:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:43:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,145 INFO L321 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2022-11-19 07:43:58,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 359 treesize of output 219 [2022-11-19 07:43:58,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 93 [2022-11-19 07:43:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,442 INFO L321 Elim1Store]: treesize reduction 118, result has 19.2 percent of original size [2022-11-19 07:43:58,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 718 treesize of output 527 [2022-11-19 07:43:58,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:58,595 INFO L321 Elim1Store]: treesize reduction 194, result has 17.8 percent of original size [2022-11-19 07:43:58,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 710 treesize of output 701 [2022-11-19 07:43:58,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:58,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 708 treesize of output 687 [2022-11-19 07:43:59,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:59,508 INFO L321 Elim1Store]: treesize reduction 262, result has 12.1 percent of original size [2022-11-19 07:43:59,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1409 treesize of output 1358 [2022-11-19 07:43:59,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:59,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:43:59,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,857 INFO L321 Elim1Store]: treesize reduction 132, result has 20.5 percent of original size [2022-11-19 07:43:59,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 1660 treesize of output 1133 [2022-11-19 07:43:59,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:43:59,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:00,074 INFO L321 Elim1Store]: treesize reduction 234, result has 12.0 percent of original size [2022-11-19 07:44:00,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 1660 treesize of output 1563 [2022-11-19 07:44:00,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:00,165 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 07:44:00,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1639 treesize of output 1606 [2022-11-19 07:44:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:00,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:00,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:01,144 INFO L321 Elim1Store]: treesize reduction 622, result has 11.8 percent of original size [2022-11-19 07:44:01,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1165 treesize of output 694 [2022-11-19 07:44:01,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:01,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:01,771 INFO L321 Elim1Store]: treesize reduction 750, result has 11.5 percent of original size [2022-11-19 07:44:01,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1180 treesize of output 1049 [2022-11-19 07:44:01,906 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:44:01,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1123 treesize of output 1106 [2022-11-19 07:44:02,428 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 19 treesize of output 1 [2022-11-19 07:44:02,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:02,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:02,480 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:02,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:02,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 07:44:02,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:02,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:02,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:02,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:02,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:02,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:44:02,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:02,569 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:44:02,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-19 07:44:02,628 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 19 treesize of output 1 [2022-11-19 07:44:02,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:02,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:02,957 INFO L321 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2022-11-19 07:44:02,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 286 treesize of output 378 [2022-11-19 07:44:04,436 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:04,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:04,535 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:04,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:04,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:04,632 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 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 07:44:04,678 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:04,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:04,761 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:04,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:04,789 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:04,899 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:04,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:04,955 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:04,992 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:05,017 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:05,068 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:05,133 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,210 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,369 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:05,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:05,435 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,501 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,561 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,622 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:05,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:05,732 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:05,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:05,848 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:05,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:05,968 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:05,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:06,024 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:06,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:06,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:44:06,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:06,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:44:06,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:06,544 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:44:06,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-19 07:44:06,567 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:44:06,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-19 07:44:06,615 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:44:12,193 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21405#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-19 07:44:12,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:44:12,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:44:12,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 37 [2022-11-19 07:44:12,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235149934] [2022-11-19 07:44:12,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:44:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-19 07:44:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-19 07:44:12,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3258, Unknown=14, NotChecked=610, Total=4290 [2022-11-19 07:44:12,196 INFO L87 Difference]: Start difference. First operand 339 states and 425 transitions. Second operand has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:44:17,709 WARN L837 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1331 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1))) is different from false [2022-11-19 07:44:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:18,135 INFO L93 Difference]: Finished difference Result 481 states and 593 transitions. [2022-11-19 07:44:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-19 07:44:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 07:44:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:18,137 INFO L225 Difference]: With dead ends: 481 [2022-11-19 07:44:18,137 INFO L226 Difference]: Without dead ends: 481 [2022-11-19 07:44:18,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 83 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1901 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=563, Invalid=4670, Unknown=47, NotChecked=882, Total=6162 [2022-11-19 07:44:18,139 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 360 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1297 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:18,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 961 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 625 Invalid, 0 Unknown, 1297 Unchecked, 0.6s Time] [2022-11-19 07:44:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-19 07:44:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 342. [2022-11-19 07:44:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 318 states have (on average 1.349056603773585) internal successors, (429), 341 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:44:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 429 transitions. [2022-11-19 07:44:18,147 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 429 transitions. Word has length 44 [2022-11-19 07:44:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:18,148 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 429 transitions. [2022-11-19 07:44:18,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:44:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 429 transitions. [2022-11-19 07:44:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:44:18,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:18,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:44:18,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:44:18,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-19 07:44:18,355 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:44:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:18,356 INFO L85 PathProgramCache]: Analyzing trace with hash -907190749, now seen corresponding path program 1 times [2022-11-19 07:44:18,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:18,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758251012] [2022-11-19 07:44:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:44:19,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:19,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758251012] [2022-11-19 07:44:19,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758251012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:44:19,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367269477] [2022-11-19 07:44:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:19,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:44:19,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:44:19,559 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:44:19,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:44:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:19,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-19 07:44:19,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:44:19,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:44:19,805 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:19,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:19,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:44:19,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:19,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:20,017 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:44:20,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 54 [2022-11-19 07:44:20,029 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 22 treesize of output 24 [2022-11-19 07:44:20,124 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:44:20,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 54 [2022-11-19 07:44:20,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 07:44:20,332 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-19 07:44:20,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 07:44:20,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-19 07:44:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:20,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2022-11-19 07:44:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:20,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:20,618 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:44:20,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 49 [2022-11-19 07:44:20,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:20,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-19 07:44:20,858 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:44:20,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 07:44:20,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-19 07:44:21,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:21,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2022-11-19 07:44:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:21,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-19 07:44:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:44:21,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:44:21,576 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 4))))) is different from false [2022-11-19 07:44:21,647 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2022-11-19 07:44:21,668 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|))) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ (select (select (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))))) is different from false [2022-11-19 07:44:37,938 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:44:37,938 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 175 [2022-11-19 07:44:37,947 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:44:37,947 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 115 [2022-11-19 07:44:37,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:37,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 624 treesize of output 594 [2022-11-19 07:44:37,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:37,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1316 treesize of output 1298 [2022-11-19 07:44:37,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:37,987 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 1242 treesize of output 1178 [2022-11-19 07:44:37,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,001 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 1130 treesize of output 1066 [2022-11-19 07:44:38,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,016 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 1050 treesize of output 1014 [2022-11-19 07:44:38,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,036 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 986 treesize of output 954 [2022-11-19 07:44:38,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,048 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 938 treesize of output 822 [2022-11-19 07:44:38,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,065 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 758 treesize of output 646 [2022-11-19 07:44:38,436 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:44:38,436 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 83 [2022-11-19 07:44:38,445 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:44:38,445 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 63 [2022-11-19 07:44:38,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 90 [2022-11-19 07:44:38,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 146 [2022-11-19 07:44:38,469 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 98 treesize of output 82 [2022-11-19 07:44:38,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,475 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 113 treesize of output 101 [2022-11-19 07:44:38,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,481 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 103 treesize of output 91 [2022-11-19 07:44:38,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:38,489 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 58 treesize of output 54 [2022-11-19 07:44:46,721 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:44:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:44:50,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367269477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:44:50,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [121752099] [2022-11-19 07:44:50,849 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:44:50,849 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:44:50,849 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:44:50,850 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:44:50,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:44:50,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,876 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 [2022-11-19 07:44:50,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:44:50,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:44:50,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:44:50,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,945 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 29 treesize of output 35 [2022-11-19 07:44:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:44:50,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:50,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,023 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 07:44:51,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-19 07:44:51,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,037 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-19 07:44:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-19 07:44:51,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,093 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 07:44:51,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-19 07:44:51,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,119 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 07:44:51,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-19 07:44:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 07:44:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2022-11-19 07:44:51,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,275 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-19 07:44:51,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 111 [2022-11-19 07:44:51,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2022-11-19 07:44:51,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:44:51,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,385 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 07:44:51,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 199 treesize of output 130 [2022-11-19 07:44:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 65 [2022-11-19 07:44:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:44:51,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:44:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,553 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-11-19 07:44:51,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 176 treesize of output 130 [2022-11-19 07:44:51,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-19 07:44:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 62 [2022-11-19 07:44:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:44:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,770 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-19 07:44:51,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 164 [2022-11-19 07:44:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-19 07:44:51,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:51,934 INFO L321 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2022-11-19 07:44:51,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 359 treesize of output 219 [2022-11-19 07:44:51,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 93 [2022-11-19 07:44:51,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:51,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:44:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:52,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:52,367 INFO L321 Elim1Store]: treesize reduction 192, result has 12.7 percent of original size [2022-11-19 07:44:52,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 742 treesize of output 531 [2022-11-19 07:44:52,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:52,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:52,559 INFO L321 Elim1Store]: treesize reduction 278, result has 13.1 percent of original size [2022-11-19 07:44:52,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 734 treesize of output 721 [2022-11-19 07:44:52,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:52,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 732 treesize of output 711 [2022-11-19 07:44:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,152 INFO L321 Elim1Store]: treesize reduction 406, result has 10.8 percent of original size [2022-11-19 07:44:53,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 758 treesize of output 760 [2022-11-19 07:44:53,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:53,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:53,540 INFO L321 Elim1Store]: treesize reduction 296, result has 16.1 percent of original size [2022-11-19 07:44:53,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 906 treesize of output 625 [2022-11-19 07:44:53,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:53,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:53,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:53,869 INFO L321 Elim1Store]: treesize reduction 438, result has 12.9 percent of original size [2022-11-19 07:44:53,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 842 treesize of output 817 [2022-11-19 07:44:54,020 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:44:54,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 829 treesize of output 812 [2022-11-19 07:44:54,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:54,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:54,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:55,025 INFO L321 Elim1Store]: treesize reduction 622, result has 11.8 percent of original size [2022-11-19 07:44:55,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1674 treesize of output 975 [2022-11-19 07:44:55,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:55,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:44:55,597 INFO L321 Elim1Store]: treesize reduction 758, result has 10.5 percent of original size [2022-11-19 07:44:55,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1180 treesize of output 1041 [2022-11-19 07:44:55,728 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 07:44:55,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1115 treesize of output 1098 [2022-11-19 07:44:56,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:56,027 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 19 treesize of output 1 [2022-11-19 07:44:56,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:56,067 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:56,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:56,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 07:44:56,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:56,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:56,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:44:56,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:56,135 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:44:56,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-19 07:44:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:56,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:44:56,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:44:56,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:56,222 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 19 treesize of output 1 [2022-11-19 07:44:56,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:44:56,507 INFO L321 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2022-11-19 07:44:56,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 286 treesize of output 378 [2022-11-19 07:44:58,120 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:58,151 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:58,191 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,225 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,239 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,253 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,302 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:58,331 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,420 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,435 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:44:58,463 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,490 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,520 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,549 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,617 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 159 treesize of output 161 [2022-11-19 07:44:58,684 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 143 [2022-11-19 07:44:58,755 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,804 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:58,869 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 1 [2022-11-19 07:44:58,944 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:58,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:58,991 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:58,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:44:59,041 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 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 07:44:59,101 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,153 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 1 [2022-11-19 07:44:59,252 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,306 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,352 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,386 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,427 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,475 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,557 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,663 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,775 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,836 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:44:59,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:44:59,897 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,949 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:44:59,997 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:44:59,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:45:00,070 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-19 07:45:00,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-19 07:45:00,174 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:45:00,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 165 treesize of output 167 [2022-11-19 07:45:00,274 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:45:00,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:45:00,362 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:45:00,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:45:00,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:45:00,790 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 11 treesize of output 7 [2022-11-19 07:45:00,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:45:00,826 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 07:45:00,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-19 07:45:00,864 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:45:00,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-19 07:45:00,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:45:00,888 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:45:07,152 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22591#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (or (not (<= 0 (+ |ULTIMATE.start_main_~inner~0#1.offset| 4))) (not (<= (+ |ULTIMATE.start_main_~inner~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~inner~0#1.base|)))) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-19 07:45:07,153 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:45:07,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:45:07,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 40 [2022-11-19 07:45:07,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580116911] [2022-11-19 07:45:07,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:45:07,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-19 07:45:07,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-19 07:45:07,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=3995, Unknown=18, NotChecked=396, Total=4830 [2022-11-19 07:45:07,157 INFO L87 Difference]: Start difference. First operand 342 states and 429 transitions. Second operand has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:45:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:10,203 INFO L93 Difference]: Finished difference Result 415 states and 488 transitions. [2022-11-19 07:45:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 07:45:10,204 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 07:45:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:10,206 INFO L225 Difference]: With dead ends: 415 [2022-11-19 07:45:10,206 INFO L226 Difference]: Without dead ends: 415 [2022-11-19 07:45:10,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2198 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=668, Invalid=6298, Unknown=18, NotChecked=498, Total=7482 [2022-11-19 07:45:10,209 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 628 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1562 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:10,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1637 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1005 Invalid, 0 Unknown, 1562 Unchecked, 1.1s Time] [2022-11-19 07:45:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-19 07:45:10,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 346. [2022-11-19 07:45:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3312693498452013) internal successors, (430), 345 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:45:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 430 transitions. [2022-11-19 07:45:10,217 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 430 transitions. Word has length 44 [2022-11-19 07:45:10,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:10,218 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 430 transitions. [2022-11-19 07:45:10,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:45:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 430 transitions. [2022-11-19 07:45:10,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:45:10,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:10,219 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:45:10,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:45:10,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-19 07:45:10,425 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-19 07:45:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash -654269091, now seen corresponding path program 1 times [2022-11-19 07:45:10,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:10,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363397078] [2022-11-19 07:45:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:10,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:45:11,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363397078] [2022-11-19 07:45:11,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363397078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:45:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888171588] [2022-11-19 07:45:11,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:11,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:45:11,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:45:11,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:45:11,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48404b3c-50f2-41d5-9e19-5a05e951aee3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 07:45:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:11,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-19 07:45:11,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:45:11,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-19 07:45:12,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:45:12,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:45:12,257 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:45:12,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 07:45:12,358 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-19 07:45:12,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:45:12,386 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 07:45:12,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 07:45:12,655 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:45:12,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 70 [2022-11-19 07:45:12,669 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:45:12,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2022-11-19 07:45:12,957 INFO L321 Elim1Store]: treesize reduction 4, result has 94.9 percent of original size [2022-11-19 07:45:12,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 140 [2022-11-19 07:45:13,360 INFO L321 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2022-11-19 07:45:13,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 61 [2022-11-19 07:45:13,390 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:45:13,391 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 1 case distinctions, treesize of input 99 treesize of output 99 [2022-11-19 07:45:13,758 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-19 07:45:13,759 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 106 [2022-11-19 07:45:13,767 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 105 treesize of output 105 [2022-11-19 07:45:14,093 INFO L321 Elim1Store]: treesize reduction 58, result has 29.3 percent of original size [2022-11-19 07:45:14,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 140 [2022-11-19 07:45:14,114 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:45:14,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 129 [2022-11-19 07:45:14,173 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 30 treesize of output 18 [2022-11-19 07:45:15,055 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:15,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 129 [2022-11-19 07:45:15,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:15,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 58 [2022-11-19 07:45:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:45:15,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:45:15,655 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (or (forall ((v_ArrVal_1561 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)) 1)) (forall ((v_ArrVal_1562 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 0))) (forall ((v_ArrVal_1561 (Array Int Int))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (or (= (select |c_#valid| .cse1) 1) (= .cse1 0)))))) is different from false [2022-11-19 07:45:15,907 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_1560))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) .cse3))) (or (forall ((v_ArrVal_1561 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse0 .cse1 v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1)) (forall ((v_ArrVal_1562 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_1559) .cse1 v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)))))) (forall ((v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem14#1.base| v_ArrVal_1560))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) .cse3) v_ArrVal_1561)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= .cse4 0) (= (select |c_#valid| .cse4) 1)))))) is different from false [2022-11-19 07:45:15,935 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 4))) (let ((.cse4 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) (.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse2))) (and (forall ((v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1560))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2) v_ArrVal_1561)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (= .cse0 0) (= (select |c_#valid| .cse0) 1)))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1560))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2))) (or (forall ((v_ArrVal_1562 (Array Int Int))) (= 0 (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_1559) .cse5 v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (forall ((v_ArrVal_1561 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse6 .cse5 v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4)) 1))))))))) is different from false [2022-11-19 07:45:15,977 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:15,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 283 [2022-11-19 07:45:16,290 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) (.cse6 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int)) (v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (let ((.cse2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse2 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (let ((.cse0 (select (select (let ((.cse5 (store .cse3 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (= .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) (= (select (select (let ((.cse1 (store .cse3 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2) v_ArrVal_1561)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) .cse0) (= .cse0 0)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse9 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse10 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse9 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (or (forall ((v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (let ((.cse7 (select (select (let ((.cse8 (store .cse10 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~end~0#1.base|) .cse9) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (= .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) (= .cse7 0)))) (= (select (select (let ((.cse11 (store .cse10 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (store .cse11 (select (select .cse11 |c_ULTIMATE.start_main_~end~0#1.base|) .cse9) v_ArrVal_1561)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) |c_ULTIMATE.start_main_~end~0#1.base|))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse14 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse15 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse14 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (let ((.cse16 (store .cse15 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (let ((.cse12 (select (select .cse16 |c_ULTIMATE.start_main_~end~0#1.base|) .cse14))) (or (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1557 (Array Int Int)) (v_ArrVal_1562 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1557) |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1559) .cse12 v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) 0)) (forall ((v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (= (select (select (let ((.cse13 (store .cse15 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse13 (select (select .cse13 |c_ULTIMATE.start_main_~end~0#1.base|) .cse14) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) |c_ULTIMATE.start_main_~end~0#1.base|)) (= (select (select (store .cse16 .cse12 v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) |c_ULTIMATE.start_main_~end~0#1.base|))))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse20 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse21 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse20 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (let ((.cse18 (select (select (let ((.cse22 (store .cse21 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (store .cse22 (select (select .cse22 |c_ULTIMATE.start_main_~end~0#1.base|) .cse20) v_ArrVal_1561)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (forall ((v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (let ((.cse17 (select (select (let ((.cse19 (store .cse21 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse19 (select (select .cse19 |c_ULTIMATE.start_main_~end~0#1.base|) .cse20) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (= .cse17 |c_ULTIMATE.start_main_~end~0#1.base|) (= .cse18 .cse17) (= .cse17 0)))) (= .cse18 |c_ULTIMATE.start_main_~end~0#1.base|)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse27 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse28 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse27 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (let ((.cse29 (store .cse28 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (let ((.cse23 (select (select .cse29 |c_ULTIMATE.start_main_~end~0#1.base|) .cse27))) (let ((.cse25 (select (select (store .cse29 .cse23 v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1557 (Array Int Int)) (v_ArrVal_1562 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1557) |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1559) .cse23 v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) 0)) (forall ((v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (let ((.cse24 (select (select (let ((.cse26 (store .cse28 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse26 (select (select .cse26 |c_ULTIMATE.start_main_~end~0#1.base|) .cse27) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (= .cse24 |c_ULTIMATE.start_main_~end~0#1.base|) (= .cse25 .cse24)))) (= .cse25 |c_ULTIMATE.start_main_~end~0#1.base|)))))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1561 (Array Int Int)) (v_ArrVal_1560 (Array Int Int))) (let ((.cse33 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse34 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse33 |c_ULTIMATE.start_main_#t~malloc13#1.base|)))) (let ((.cse35 (store .cse34 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1560))) (let ((.cse30 (select (select .cse35 |c_ULTIMATE.start_main_~end~0#1.base|) .cse33))) (let ((.cse31 (select (select (store .cse35 .cse30 v_ArrVal_1561) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))) (or (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1557 (Array Int Int)) (v_ArrVal_1562 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1557) |c_ULTIMATE.start_main_#t~malloc13#1.base| v_ArrVal_1559) .cse30 v_ArrVal_1562) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) 0)) (= .cse31 |c_ULTIMATE.start_main_~end~0#1.base|) (forall ((v_prenex_4 (Array Int Int)) (v_prenex_5 (Array Int Int))) (= .cse31 (select (select (let ((.cse32 (store .cse34 |c_ULTIMATE.start_main_#t~malloc13#1.base| v_prenex_5))) (store .cse32 (select (select .cse32 |c_ULTIMATE.start_main_~end~0#1.base|) .cse33) v_prenex_4)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4)))))))))))) is different from false [2022-11-19 07:45:19,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:19,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 126 [2022-11-19 07:45:19,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:19,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 99 [2022-11-19 07:45:19,110 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:19,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 99 [2022-11-19 07:45:19,134 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:19,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 126 [2022-11-19 07:45:23,133 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 07:45:23,133 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 102 [2022-11-19 07:45:23,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:23,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1684 treesize of output 1380 [2022-11-19 07:45:23,168 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:23,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1344 treesize of output 916 [2022-11-19 07:45:23,184 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 899 treesize of output 835 [2022-11-19 07:45:23,208 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:23,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 835 treesize of output 715 [2022-11-19 07:45:23,979 INFO L321 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-11-19 07:45:23,979 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 70 [2022-11-19 07:45:24,009 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 07:45:24,009 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 102 [2022-11-19 07:45:24,026 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:24,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 981 treesize of output 777 [2022-11-19 07:45:24,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:24,049 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-19 07:45:24,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 116 [2022-11-19 07:45:24,087 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 666 treesize of output 634 [2022-11-19 07:45:24,102 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 66 treesize of output 54 [2022-11-19 07:45:24,116 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 76 treesize of output 68 [2022-11-19 07:45:24,134 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:24,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 714 treesize of output 494 [2022-11-19 07:45:24,157 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:45:24,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 362 [2022-11-19 07:45:24,171 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 46 treesize of output 38 [2022-11-19 07:45:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:45:24,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888171588] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:45:24,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [518122226] [2022-11-19 07:45:24,509 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:45:24,509 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:45:24,510 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:45:24,510 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:45:24,510 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:45:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,538 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 [2022-11-19 07:45:24,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:45:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:45:24,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:45:24,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:45:24,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:45:24,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:45:24,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,681 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 29 treesize of output 35 [2022-11-19 07:45:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:45:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-19 07:45:24,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:45:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,790 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-19 07:45:24,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 77 treesize of output 59 [2022-11-19 07:45:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-19 07:45:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:45:24,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 52 [2022-11-19 07:45:24,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,915 INFO L321 Elim1Store]: treesize reduction 53, result has 14.5 percent of original size [2022-11-19 07:45:24,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 145 treesize of output 114 [2022-11-19 07:45:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-19 07:45:24,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 07:45:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:24,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,022 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-19 07:45:25,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 155 [2022-11-19 07:45:25,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 123 [2022-11-19 07:45:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 07:45:25,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,138 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-19 07:45:25,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 256 treesize of output 180 [2022-11-19 07:45:25,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,175 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 07:45:25,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 147 [2022-11-19 07:45:25,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 07:45:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 57 [2022-11-19 07:45:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:45:25,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,375 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-19 07:45:25,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 195 treesize of output 145 [2022-11-19 07:45:25,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-19 07:45:25,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:45:25,573 INFO L321 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2022-11-19 07:45:25,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 379 treesize of output 219 [2022-11-19 07:45:25,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 97 [2022-11-19 07:45:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 07:45:25,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:45:25,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:45:25,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:45:25,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:45:25,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:45:25,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 100 [2022-11-19 07:45:25,741 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-19 07:45:25,741 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 88 [2022-11-19 07:45:25,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2022-11-19 07:45:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,788 INFO L321 Elim1Store]: treesize reduction 35, result has 27.1 percent of original size [2022-11-19 07:45:25,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 129 [2022-11-19 07:45:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,825 INFO L321 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2022-11-19 07:45:25,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2022-11-19 07:45:25,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2022-11-19 07:45:25,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,908 INFO L321 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2022-11-19 07:45:25,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 197 [2022-11-19 07:45:25,964 INFO L321 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2022-11-19 07:45:25,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 207 treesize of output 224 [2022-11-19 07:45:25,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:45:25,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:26,068 INFO L321 Elim1Store]: treesize reduction 160, result has 27.6 percent of original size [2022-11-19 07:45:26,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 222 treesize of output 198 [2022-11-19 07:45:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:45:26,150 INFO L321 Elim1Store]: treesize reduction 218, result has 18.4 percent of original size [2022-11-19 07:45:26,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 222 treesize of output 200 [2022-11-19 07:45:26,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:45:27,145 INFO L321 Elim1Store]: treesize reduction 678, result has 24.1 percent of original size [2022-11-19 07:45:27,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 78 case distinctions, treesize of input 527 treesize of output 533 [2022-11-19 07:45:28,001 INFO L321 Elim1Store]: treesize reduction 746, result has 23.6 percent of original size [2022-11-19 07:45:28,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 72 case distinctions, treesize of input 389 treesize of output 543 [2022-11-19 07:48:00,810 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 553 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-19 07:49:56,087 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 550 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-19 07:50:11,898 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)