./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh --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 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e --- 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-2329fc7 [2022-12-14 06:46:02,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:46:02,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:46:02,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:46:02,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:46:02,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:46:02,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:46:02,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:46:02,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:46:02,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:46:02,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:46:02,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:46:02,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:46:02,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:46:02,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:46:02,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:46:02,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:46:02,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:46:02,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:46:02,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:46:02,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:46:02,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:46:02,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:46:02,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:46:02,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:46:02,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:46:02,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:46:02,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:46:02,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:46:02,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:46:02,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:46:02,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:46:02,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:46:02,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:46:02,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:46:02,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:46:02,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:46:02,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:46:02,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:46:02,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:46:02,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:46:02,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 06:46:02,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:46:02,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:46:02,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:46:02,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:46:02,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:46:02,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:46:02,213 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:46:02,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:46:02,213 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:46:02,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:46:02,214 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:46:02,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 06:46:02,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:46:02,215 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:46:02,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:46:02,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:46:02,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:46:02,217 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:46:02,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:46:02,217 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:46:02,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:46:02,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:46:02,217 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_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2022-12-14 06:46:02,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:46:02,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:46:02,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:46:02,396 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:46:02,396 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:46:02,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2022-12-14 06:46:04,862 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:46:05,030 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:46:05,030 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i [2022-12-14 06:46:05,039 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/data/a75d6fc62/bd2e5f873e68405aaae92fb4d214d488/FLAG75415889a [2022-12-14 06:46:05,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/data/a75d6fc62/bd2e5f873e68405aaae92fb4d214d488 [2022-12-14 06:46:05,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:46:05,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:46:05,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:46:05,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:46:05,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:46:05,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6357a245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05, skipping insertion in model container [2022-12-14 06:46:05,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:46:05,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:46:05,655 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-12-14 06:46:05,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-12-14 06:46:05,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-12-14 06:46:05,663 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-12-14 06:46:05,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-12-14 06:46:05,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-12-14 06:46:05,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-12-14 06:46:05,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-12-14 06:46:05,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-12-14 06:46:05,669 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-12-14 06:46:05,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-12-14 06:46:05,671 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-12-14 06:46:05,672 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-12-14 06:46:05,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:46:05,682 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:46:05,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-12-14 06:46:05,708 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-12-14 06:46:05,709 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-12-14 06:46:05,710 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-12-14 06:46:05,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-12-14 06:46:05,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-12-14 06:46:05,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-12-14 06:46:05,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-12-14 06:46:05,715 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-12-14 06:46:05,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-12-14 06:46:05,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-12-14 06:46:05,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-12-14 06:46:05,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-12-14 06:46:05,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:46:05,736 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:46:05,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05 WrapperNode [2022-12-14 06:46:05,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:46:05,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:46:05,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:46:05,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:46:05,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,769 INFO L138 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2022-12-14 06:46:05,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:46:05,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:46:05,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:46:05,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:46:05,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:46:05,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:46:05,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:46:05,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:46:05,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (1/1) ... [2022-12-14 06:46:05,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:46:05,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:05,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:46:05,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:46:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:46:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:46:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:46:05,954 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:46:05,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:46:06,324 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:46:06,369 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:46:06,369 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-12-14 06:46:06,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:46:06 BoogieIcfgContainer [2022-12-14 06:46:06,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:46:06,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:46:06,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:46:06,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:46:06,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:46:05" (1/3) ... [2022-12-14 06:46:06,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3513de81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:46:06, skipping insertion in model container [2022-12-14 06:46:06,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:46:05" (2/3) ... [2022-12-14 06:46:06,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3513de81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:46:06, skipping insertion in model container [2022-12-14 06:46:06,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:46:06" (3/3) ... [2022-12-14 06:46:06,379 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2022-12-14 06:46:06,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:46:06,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2022-12-14 06:46:06,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:46:06,442 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;@22ed05bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:46:06,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-12-14 06:46:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 94 states have (on average 2.4361702127659575) internal successors, (229), 180 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:46:06,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:06,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:46:06,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:06,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash 15008, now seen corresponding path program 1 times [2022-12-14 06:46:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893745564] [2022-12-14 06:46:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:06,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:06,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893745564] [2022-12-14 06:46:06,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893745564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:06,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:06,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:46:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085543838] [2022-12-14 06:46:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:06,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:06,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:06,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:06,664 INFO L87 Difference]: Start difference. First operand has 181 states, 94 states have (on average 2.4361702127659575) internal successors, (229), 180 states have internal predecessors, (229), 0 states have call successors, (0), 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) [2022-12-14 06:46:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:06,816 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2022-12-14 06:46:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:06,819 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 [2022-12-14 06:46:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:06,827 INFO L225 Difference]: With dead ends: 177 [2022-12-14 06:46:06,828 INFO L226 Difference]: Without dead ends: 175 [2022-12-14 06:46:06,829 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 [2022-12-14 06:46:06,832 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 169 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:06,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-14 06:46:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2022-12-14 06:46:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 96 states have (on average 1.8958333333333333) internal successors, (182), 171 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2022-12-14 06:46:06,871 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 2 [2022-12-14 06:46:06,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:06,871 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2022-12-14 06:46:06,872 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) [2022-12-14 06:46:06,872 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2022-12-14 06:46:06,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:46:06,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:06,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:46:06,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:46:06,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:06,874 INFO L85 PathProgramCache]: Analyzing trace with hash 15009, now seen corresponding path program 1 times [2022-12-14 06:46:06,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:06,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188963897] [2022-12-14 06:46:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:06,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:06,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:06,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188963897] [2022-12-14 06:46:06,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188963897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:06,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:06,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:46:06,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12531460] [2022-12-14 06:46:06,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:06,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:06,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:06,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:06,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:06,946 INFO L87 Difference]: Start difference. First operand 172 states and 182 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) [2022-12-14 06:46:07,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:07,062 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2022-12-14 06:46:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:07,063 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 [2022-12-14 06:46:07,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:07,064 INFO L225 Difference]: With dead ends: 198 [2022-12-14 06:46:07,064 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 06:46:07,065 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 [2022-12-14 06:46:07,066 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 160 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:07,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 120 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 06:46:07,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2022-12-14 06:46:07,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 111 states have (on average 1.8018018018018018) internal successors, (200), 178 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 200 transitions. [2022-12-14 06:46:07,076 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 200 transitions. Word has length 2 [2022-12-14 06:46:07,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:07,076 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 200 transitions. [2022-12-14 06:46:07,076 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) [2022-12-14 06:46:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 200 transitions. [2022-12-14 06:46:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:46:07,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:07,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:46:07,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:46:07,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash 447079752, now seen corresponding path program 1 times [2022-12-14 06:46:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:07,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161027104] [2022-12-14 06:46:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:07,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:07,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161027104] [2022-12-14 06:46:07,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161027104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:07,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:07,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:46:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877597337] [2022-12-14 06:46:07,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:07,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:07,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:07,119 INFO L87 Difference]: Start difference. First operand 179 states and 200 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:07,173 INFO L93 Difference]: Finished difference Result 194 states and 203 transitions. [2022-12-14 06:46:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:07,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-12-14 06:46:07,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:07,175 INFO L225 Difference]: With dead ends: 194 [2022-12-14 06:46:07,175 INFO L226 Difference]: Without dead ends: 194 [2022-12-14 06:46:07,175 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 [2022-12-14 06:46:07,176 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 157 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:07,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 160 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:46:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-12-14 06:46:07,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2022-12-14 06:46:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 110 states have (on average 1.790909090909091) internal successors, (197), 176 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2022-12-14 06:46:07,185 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 5 [2022-12-14 06:46:07,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:07,185 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2022-12-14 06:46:07,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2022-12-14 06:46:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:46:07,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:07,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:07,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:46:07,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:07,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash -432269896, now seen corresponding path program 1 times [2022-12-14 06:46:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:07,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787709364] [2022-12-14 06:46:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:07,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:07,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787709364] [2022-12-14 06:46:07,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787709364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:07,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:07,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:07,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869888628] [2022-12-14 06:46:07,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:07,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:07,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:07,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:07,343 INFO L87 Difference]: Start difference. First operand 177 states and 197 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:07,482 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2022-12-14 06:46:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:07,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 06:46:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:07,483 INFO L225 Difference]: With dead ends: 176 [2022-12-14 06:46:07,484 INFO L226 Difference]: Without dead ends: 176 [2022-12-14 06:46:07,484 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 [2022-12-14 06:46:07,485 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:07,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 425 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-12-14 06:46:07,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-12-14 06:46:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 110 states have (on average 1.7818181818181817) internal successors, (196), 175 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2022-12-14 06:46:07,493 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 10 [2022-12-14 06:46:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:07,494 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2022-12-14 06:46:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2022-12-14 06:46:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:46:07,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:07,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:07,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:46:07,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:07,496 INFO L85 PathProgramCache]: Analyzing trace with hash -432269895, now seen corresponding path program 1 times [2022-12-14 06:46:07,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:07,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026954214] [2022-12-14 06:46:07,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:07,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:07,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:07,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026954214] [2022-12-14 06:46:07,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026954214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:07,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:07,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:07,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843955243] [2022-12-14 06:46:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:07,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:07,689 INFO L87 Difference]: Start difference. First operand 176 states and 196 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:07,839 INFO L93 Difference]: Finished difference Result 175 states and 195 transitions. [2022-12-14 06:46:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 06:46:07,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:07,840 INFO L225 Difference]: With dead ends: 175 [2022-12-14 06:46:07,840 INFO L226 Difference]: Without dead ends: 175 [2022-12-14 06:46:07,841 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 [2022-12-14 06:46:07,841 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:07,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-14 06:46:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-12-14 06:46:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 110 states have (on average 1.7727272727272727) internal successors, (195), 174 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 195 transitions. [2022-12-14 06:46:07,847 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 195 transitions. Word has length 10 [2022-12-14 06:46:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:07,847 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 195 transitions. [2022-12-14 06:46:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 195 transitions. [2022-12-14 06:46:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:46:07,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:07,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:07,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:46:07,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863745, now seen corresponding path program 1 times [2022-12-14 06:46:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:07,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237492491] [2022-12-14 06:46:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:08,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:08,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237492491] [2022-12-14 06:46:08,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237492491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:08,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:08,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:46:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756607448] [2022-12-14 06:46:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:08,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:46:08,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:46:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:46:08,012 INFO L87 Difference]: Start difference. First operand 175 states and 195 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) [2022-12-14 06:46:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:08,278 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-12-14 06:46:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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 [2022-12-14 06:46:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:08,279 INFO L225 Difference]: With dead ends: 174 [2022-12-14 06:46:08,279 INFO L226 Difference]: Without dead ends: 174 [2022-12-14 06:46:08,280 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 [2022-12-14 06:46:08,280 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 151 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:08,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 530 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-12-14 06:46:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-12-14 06:46:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 110 states have (on average 1.7636363636363637) internal successors, (194), 173 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-12-14 06:46:08,285 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-12-14 06:46:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-12-14 06:46:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) [2022-12-14 06:46:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-12-14 06:46:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:46:08,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:08,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:08,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:46:08,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863746, now seen corresponding path program 1 times [2022-12-14 06:46:08,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:08,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474374707] [2022-12-14 06:46:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:08,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474374707] [2022-12-14 06:46:08,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474374707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:08,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:08,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:46:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671536619] [2022-12-14 06:46:08,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:08,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:46:08,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:08,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:46:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:46:08,505 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) [2022-12-14 06:46:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:08,845 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2022-12-14 06:46:08,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:08,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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 [2022-12-14 06:46:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:08,847 INFO L225 Difference]: With dead ends: 173 [2022-12-14 06:46:08,847 INFO L226 Difference]: Without dead ends: 173 [2022-12-14 06:46:08,847 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 [2022-12-14 06:46:08,848 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 148 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:08,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 435 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:46:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-14 06:46:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-14 06:46:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.7545454545454546) internal successors, (193), 172 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) [2022-12-14 06:46:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-12-14 06:46:08,852 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 12 [2022-12-14 06:46:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:08,853 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-12-14 06:46:08,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 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) [2022-12-14 06:46:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-12-14 06:46:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:46:08,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:08,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:08,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:46:08,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:08,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 678271813, now seen corresponding path program 1 times [2022-12-14 06:46:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:08,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141981] [2022-12-14 06:46:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:08,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:08,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141981] [2022-12-14 06:46:08,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:08,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:08,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:08,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726790059] [2022-12-14 06:46:08,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:08,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:08,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:08,875 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-12-14 06:46:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:08,911 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-12-14 06:46:08,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:08,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2022-12-14 06:46:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:08,913 INFO L225 Difference]: With dead ends: 174 [2022-12-14 06:46:08,913 INFO L226 Difference]: Without dead ends: 174 [2022-12-14 06:46:08,913 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 [2022-12-14 06:46:08,914 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:08,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:46:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-12-14 06:46:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-12-14 06:46:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 111 states have (on average 1.7477477477477477) internal successors, (194), 173 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-12-14 06:46:08,918 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-12-14 06:46:08,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:08,918 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-12-14 06:46:08,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-12-14 06:46:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-12-14 06:46:08,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:46:08,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:08,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:08,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:46:08,918 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:08,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:08,919 INFO L85 PathProgramCache]: Analyzing trace with hash -447972018, now seen corresponding path program 1 times [2022-12-14 06:46:08,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:08,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301785589] [2022-12-14 06:46:08,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:08,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:08,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:08,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301785589] [2022-12-14 06:46:08,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301785589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:08,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:08,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783593962] [2022-12-14 06:46:08,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:08,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:08,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:08,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:08,983 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:09,096 INFO L93 Difference]: Finished difference Result 258 states and 283 transitions. [2022-12-14 06:46:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:46:09,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-12-14 06:46:09,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:09,097 INFO L225 Difference]: With dead ends: 258 [2022-12-14 06:46:09,097 INFO L226 Difference]: Without dead ends: 258 [2022-12-14 06:46:09,097 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 [2022-12-14 06:46:09,098 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 168 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:09,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 355 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-12-14 06:46:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 171. [2022-12-14 06:46:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 109 states have (on average 1.7522935779816513) internal successors, (191), 170 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 191 transitions. [2022-12-14 06:46:09,102 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 191 transitions. Word has length 13 [2022-12-14 06:46:09,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:09,102 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 191 transitions. [2022-12-14 06:46:09,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 191 transitions. [2022-12-14 06:46:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:46:09,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:09,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:09,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:46:09,103 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:09,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1118637745, now seen corresponding path program 1 times [2022-12-14 06:46:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:09,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879750308] [2022-12-14 06:46:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:09,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:09,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879750308] [2022-12-14 06:46:09,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879750308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:09,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:09,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:09,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801209974] [2022-12-14 06:46:09,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:09,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:46:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:46:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:46:09,181 INFO L87 Difference]: Start difference. First operand 171 states and 191 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-12-14 06:46:09,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:09,278 INFO L93 Difference]: Finished difference Result 258 states and 282 transitions. [2022-12-14 06:46:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:09,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 [2022-12-14 06:46:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:09,279 INFO L225 Difference]: With dead ends: 258 [2022-12-14 06:46:09,279 INFO L226 Difference]: Without dead ends: 258 [2022-12-14 06:46:09,279 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 [2022-12-14 06:46:09,280 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 87 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:09,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 358 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:09,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-12-14 06:46:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 173. [2022-12-14 06:46:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 111 states have (on average 1.7387387387387387) internal successors, (193), 172 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) [2022-12-14 06:46:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-12-14 06:46:09,283 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 16 [2022-12-14 06:46:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:09,284 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-12-14 06:46:09,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-12-14 06:46:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-12-14 06:46:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 06:46:09,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:09,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:09,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:46:09,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:09,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385624, now seen corresponding path program 1 times [2022-12-14 06:46:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:09,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062575613] [2022-12-14 06:46:09,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:09,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:09,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:09,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062575613] [2022-12-14 06:46:09,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062575613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:09,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:09,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:46:09,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400458313] [2022-12-14 06:46:09,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:09,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:46:09,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:09,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:46:09,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:46:09,349 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:09,447 INFO L93 Difference]: Finished difference Result 166 states and 185 transitions. [2022-12-14 06:46:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:46:09,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-12-14 06:46:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:09,448 INFO L225 Difference]: With dead ends: 166 [2022-12-14 06:46:09,448 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 06:46:09,449 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 [2022-12-14 06:46:09,449 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 225 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:09,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 84 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 06:46:09,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2022-12-14 06:46:09,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 113 states have (on average 1.6194690265486726) internal successors, (183), 162 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) [2022-12-14 06:46:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 183 transitions. [2022-12-14 06:46:09,453 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 183 transitions. Word has length 17 [2022-12-14 06:46:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:09,454 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 183 transitions. [2022-12-14 06:46:09,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 183 transitions. [2022-12-14 06:46:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 06:46:09,454 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:09,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:09,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:46:09,455 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385625, now seen corresponding path program 1 times [2022-12-14 06:46:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:09,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106693496] [2022-12-14 06:46:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:09,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:09,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:09,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106693496] [2022-12-14 06:46:09,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106693496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:09,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:09,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:46:09,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402937962] [2022-12-14 06:46:09,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:09,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:46:09,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:09,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:46:09,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:46:09,531 INFO L87 Difference]: Start difference. First operand 163 states and 183 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:09,671 INFO L93 Difference]: Finished difference Result 216 states and 228 transitions. [2022-12-14 06:46:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:46:09,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-12-14 06:46:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:09,673 INFO L225 Difference]: With dead ends: 216 [2022-12-14 06:46:09,673 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 06:46:09,673 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 [2022-12-14 06:46:09,673 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 209 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:09,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 154 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 06:46:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2022-12-14 06:46:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 132 states have (on average 1.628787878787879) 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) [2022-12-14 06:46:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2022-12-14 06:46:09,678 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 17 [2022-12-14 06:46:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:09,678 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2022-12-14 06:46:09,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2022-12-14 06:46:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:46:09,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:09,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:09,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:46:09,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:09,680 INFO L85 PathProgramCache]: Analyzing trace with hash -282688741, now seen corresponding path program 1 times [2022-12-14 06:46:09,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:09,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86174236] [2022-12-14 06:46:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:09,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:09,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86174236] [2022-12-14 06:46:09,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86174236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:09,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:09,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:09,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274024407] [2022-12-14 06:46:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:09,761 INFO L87 Difference]: Start difference. First operand 182 states and 215 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:09,866 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2022-12-14 06:46:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:09,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:46:09,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:09,867 INFO L225 Difference]: With dead ends: 181 [2022-12-14 06:46:09,867 INFO L226 Difference]: Without dead ends: 181 [2022-12-14 06:46:09,868 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 [2022-12-14 06:46:09,868 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 6 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:09,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 368 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-12-14 06:46:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-12-14 06:46:09,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 132 states have (on average 1.6136363636363635) internal successors, (213), 180 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2022-12-14 06:46:09,871 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 19 [2022-12-14 06:46:09,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:09,871 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2022-12-14 06:46:09,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2022-12-14 06:46:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:46:09,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:09,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:09,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:46:09,872 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash -282688740, now seen corresponding path program 1 times [2022-12-14 06:46:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:09,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996302473] [2022-12-14 06:46:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:09,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:09,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:09,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996302473] [2022-12-14 06:46:09,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996302473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:09,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:09,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145926522] [2022-12-14 06:46:09,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:09,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:09,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:09,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:09,976 INFO L87 Difference]: Start difference. First operand 181 states and 213 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:10,140 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2022-12-14 06:46:10,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:10,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:46:10,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:10,142 INFO L225 Difference]: With dead ends: 180 [2022-12-14 06:46:10,142 INFO L226 Difference]: Without dead ends: 180 [2022-12-14 06:46:10,142 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 [2022-12-14 06:46:10,143 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 3 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:10,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 355 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:10,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-12-14 06:46:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-12-14 06:46:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 132 states have (on average 1.5984848484848484) internal successors, (211), 179 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 211 transitions. [2022-12-14 06:46:10,149 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 211 transitions. Word has length 19 [2022-12-14 06:46:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:10,149 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 211 transitions. [2022-12-14 06:46:10,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 211 transitions. [2022-12-14 06:46:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:46:10,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:10,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:10,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:46:10,150 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:10,151 INFO L85 PathProgramCache]: Analyzing trace with hash -282972339, now seen corresponding path program 1 times [2022-12-14 06:46:10,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578751583] [2022-12-14 06:46:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:10,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:10,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578751583] [2022-12-14 06:46:10,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578751583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:10,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:10,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:10,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594835765] [2022-12-14 06:46:10,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:10,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:46:10,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:10,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:46:10,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:46:10,193 INFO L87 Difference]: Start difference. First operand 180 states and 211 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:10,290 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-12-14 06:46:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:46:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-12-14 06:46:10,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:10,291 INFO L225 Difference]: With dead ends: 208 [2022-12-14 06:46:10,292 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 06:46:10,292 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 [2022-12-14 06:46:10,292 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 195 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:10,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 204 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:10,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 06:46:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2022-12-14 06:46:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 131 states have (on average 1.5877862595419847) internal successors, (208), 177 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2022-12-14 06:46:10,297 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 19 [2022-12-14 06:46:10,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:10,297 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2022-12-14 06:46:10,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2022-12-14 06:46:10,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 06:46:10,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:10,298 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] [2022-12-14 06:46:10,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:46:10,298 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590815, now seen corresponding path program 1 times [2022-12-14 06:46:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666460651] [2022-12-14 06:46:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:10,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:10,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:10,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666460651] [2022-12-14 06:46:10,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666460651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:10,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:10,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:46:10,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231552553] [2022-12-14 06:46:10,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:10,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:46:10,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:10,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:46:10,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:46:10,434 INFO L87 Difference]: Start difference. First operand 178 states and 208 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:10,647 INFO L93 Difference]: Finished difference Result 177 states and 207 transitions. [2022-12-14 06:46:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:46:10,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-12-14 06:46:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:10,648 INFO L225 Difference]: With dead ends: 177 [2022-12-14 06:46:10,648 INFO L226 Difference]: Without dead ends: 177 [2022-12-14 06:46:10,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:46:10,649 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 217 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:10,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 255 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-14 06:46:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-12-14 06:46:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.5801526717557253) internal successors, (207), 176 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 207 transitions. [2022-12-14 06:46:10,653 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 207 transitions. Word has length 21 [2022-12-14 06:46:10,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:10,654 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 207 transitions. [2022-12-14 06:46:10,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 207 transitions. [2022-12-14 06:46:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 06:46:10,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:10,654 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] [2022-12-14 06:46:10,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:46:10,655 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:10,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590814, now seen corresponding path program 1 times [2022-12-14 06:46:10,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:10,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715174795] [2022-12-14 06:46:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:10,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:10,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715174795] [2022-12-14 06:46:10,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715174795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:10,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:10,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:46:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247252576] [2022-12-14 06:46:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:10,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:46:10,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:46:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:46:10,882 INFO L87 Difference]: Start difference. First operand 177 states and 207 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:11,208 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2022-12-14 06:46:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:46:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-12-14 06:46:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:11,210 INFO L225 Difference]: With dead ends: 168 [2022-12-14 06:46:11,210 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 06:46:11,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:46:11,211 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 225 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:11,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 290 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 06:46:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2022-12-14 06:46:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 125 states have (on average 1.52) internal successors, (190), 160 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) [2022-12-14 06:46:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2022-12-14 06:46:11,214 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 21 [2022-12-14 06:46:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:11,214 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2022-12-14 06:46:11,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:11,214 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2022-12-14 06:46:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 06:46:11,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,214 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] [2022-12-14 06:46:11,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 06:46:11,214 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:11,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,215 INFO L85 PathProgramCache]: Analyzing trace with hash 934315297, now seen corresponding path program 1 times [2022-12-14 06:46:11,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476829677] [2022-12-14 06:46:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:11,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:11,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476829677] [2022-12-14 06:46:11,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476829677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:11,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:11,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:46:11,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535515818] [2022-12-14 06:46:11,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:11,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:46:11,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:11,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:46:11,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:46:11,325 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 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) [2022-12-14 06:46:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:11,552 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2022-12-14 06:46:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:46:11,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 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 [2022-12-14 06:46:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:11,553 INFO L225 Difference]: With dead ends: 164 [2022-12-14 06:46:11,553 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 06:46:11,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:46:11,554 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 214 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:11,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 254 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 06:46:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2022-12-14 06:46:11,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.5121951219512195) internal successors, (186), 156 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) [2022-12-14 06:46:11,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2022-12-14 06:46:11,556 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 23 [2022-12-14 06:46:11,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:11,556 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2022-12-14 06:46:11,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 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) [2022-12-14 06:46:11,557 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2022-12-14 06:46:11,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:46:11,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,557 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] [2022-12-14 06:46:11,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 06:46:11,557 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash -624849616, now seen corresponding path program 1 times [2022-12-14 06:46:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586979628] [2022-12-14 06:46:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:11,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:11,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586979628] [2022-12-14 06:46:11,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586979628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:11,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:11,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:11,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845771945] [2022-12-14 06:46:11,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:11,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:11,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:11,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:11,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:11,578 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-12-14 06:46:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:11,618 INFO L93 Difference]: Finished difference Result 223 states and 266 transitions. [2022-12-14 06:46:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 [2022-12-14 06:46:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:11,619 INFO L225 Difference]: With dead ends: 223 [2022-12-14 06:46:11,619 INFO L226 Difference]: Without dead ends: 223 [2022-12-14 06:46:11,620 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 [2022-12-14 06:46:11,620 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 211 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 [2022-12-14 06:46:11,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 211 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:46:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-12-14 06:46:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 161. [2022-12-14 06:46:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 127 states have (on average 1.5118110236220472) internal successors, (192), 160 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2022-12-14 06:46:11,624 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 24 [2022-12-14 06:46:11,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:11,625 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2022-12-14 06:46:11,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:11,625 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2022-12-14 06:46:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:46:11,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,625 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] [2022-12-14 06:46:11,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 06:46:11,625 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash -624846859, now seen corresponding path program 1 times [2022-12-14 06:46:11,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967801645] [2022-12-14 06:46:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:11,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:11,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967801645] [2022-12-14 06:46:11,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967801645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:11,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:11,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823360226] [2022-12-14 06:46:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:11,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:11,653 INFO L87 Difference]: Start difference. First operand 161 states and 192 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-12-14 06:46:11,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:11,696 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2022-12-14 06:46:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:11,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 [2022-12-14 06:46:11,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:11,697 INFO L225 Difference]: With dead ends: 159 [2022-12-14 06:46:11,698 INFO L226 Difference]: Without dead ends: 159 [2022-12-14 06:46:11,698 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 [2022-12-14 06:46:11,698 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:11,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:46:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-12-14 06:46:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-12-14 06:46:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 126 states have (on average 1.5) internal successors, (189), 158 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) [2022-12-14 06:46:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2022-12-14 06:46:11,701 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 24 [2022-12-14 06:46:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:11,701 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2022-12-14 06:46:11,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2022-12-14 06:46:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 06:46:11,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:11,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 06:46:11,702 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2104588190, now seen corresponding path program 1 times [2022-12-14 06:46:11,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473081694] [2022-12-14 06:46:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:11,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:11,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473081694] [2022-12-14 06:46:11,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473081694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:11,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:11,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:46:11,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254401437] [2022-12-14 06:46:11,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:11,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:46:11,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:11,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:46:11,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:46:11,803 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-12-14 06:46:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:11,985 INFO L93 Difference]: Finished difference Result 255 states and 292 transitions. [2022-12-14 06:46:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:46:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 25 [2022-12-14 06:46:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:11,987 INFO L225 Difference]: With dead ends: 255 [2022-12-14 06:46:11,988 INFO L226 Difference]: Without dead ends: 255 [2022-12-14 06:46:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:46:11,988 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 263 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:11,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 327 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-12-14 06:46:11,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2022-12-14 06:46:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.467153284671533) 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) [2022-12-14 06:46:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2022-12-14 06:46:11,991 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 25 [2022-12-14 06:46:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:11,991 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2022-12-14 06:46:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-12-14 06:46:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2022-12-14 06:46:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 06:46:11,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:11,992 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] [2022-12-14 06:46:11,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 06:46:11,992 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash -502293249, now seen corresponding path program 1 times [2022-12-14 06:46:11,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:11,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983804401] [2022-12-14 06:46:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:11,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:12,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:12,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983804401] [2022-12-14 06:46:12,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983804401] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:12,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594886956] [2022-12-14 06:46:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:12,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:12,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:12,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:12,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:46:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:12,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 06:46:12,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:12,239 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 [2022-12-14 06:46:12,243 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 [2022-12-14 06:46:12,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:12,274 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 [2022-12-14 06:46:12,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:12,285 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 [2022-12-14 06:46:12,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:12,328 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 [2022-12-14 06:46:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:12,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 06:46:12,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:12,442 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 [2022-12-14 06:46:12,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:12,450 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:12,450 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 [2022-12-14 06:46:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:12,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:12,912 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 [2022-12-14 06:46:12,917 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 [2022-12-14 06:46:12,926 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 [2022-12-14 06:46:12,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:12,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594886956] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:12,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1644060708] [2022-12-14 06:46:12,956 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 06:46:12,956 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:12,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:12,966 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:12,966 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:13,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,011 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 [2022-12-14 06:46:13,024 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 [2022-12-14 06:46:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,031 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 [2022-12-14 06:46:13,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:46:13,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,051 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 [2022-12-14 06:46:13,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,059 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 [2022-12-14 06:46:13,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,067 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 [2022-12-14 06:46:13,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,103 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 30 treesize of output 32 [2022-12-14 06:46:13,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,115 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 34 treesize of output 21 [2022-12-14 06:46:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:13,125 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 30 treesize of output 32 [2022-12-14 06:46:13,302 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:14,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1644060708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:14,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:14,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 23 [2022-12-14 06:46:14,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178843505] [2022-12-14 06:46:14,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:14,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 06:46:14,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 06:46:14,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-12-14 06:46:14,956 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:15,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:15,790 INFO L93 Difference]: Finished difference Result 227 states and 261 transitions. [2022-12-14 06:46:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:46:15,791 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 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 [2022-12-14 06:46:15,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:15,792 INFO L225 Difference]: With dead ends: 227 [2022-12-14 06:46:15,792 INFO L226 Difference]: Without dead ends: 227 [2022-12-14 06:46:15,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-12-14 06:46:15,792 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 95 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:15,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 400 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 06:46:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-12-14 06:46:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2022-12-14 06:46:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 159 states have (on average 1.421383647798742) internal successors, (226), 191 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 226 transitions. [2022-12-14 06:46:15,795 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 226 transitions. Word has length 27 [2022-12-14 06:46:15,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:15,795 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 226 transitions. [2022-12-14 06:46:15,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 226 transitions. [2022-12-14 06:46:15,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:46:15,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:15,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:15,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:46:15,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:15,998 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641916, now seen corresponding path program 1 times [2022-12-14 06:46:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:16,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43688112] [2022-12-14 06:46:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:16,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:16,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:16,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43688112] [2022-12-14 06:46:16,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43688112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:16,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:16,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:46:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573042810] [2022-12-14 06:46:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:16,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:46:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:46:16,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:46:16,199 INFO L87 Difference]: Start difference. First operand 192 states and 226 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:16,573 INFO L93 Difference]: Finished difference Result 326 states and 367 transitions. [2022-12-14 06:46:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:46:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 06:46:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:16,574 INFO L225 Difference]: With dead ends: 326 [2022-12-14 06:46:16,574 INFO L226 Difference]: Without dead ends: 326 [2022-12-14 06:46:16,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-12-14 06:46:16,575 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 392 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:16,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 601 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:46:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-12-14 06:46:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 201. [2022-12-14 06:46:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 170 states have (on average 1.388235294117647) 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) [2022-12-14 06:46:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2022-12-14 06:46:16,580 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 28 [2022-12-14 06:46:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:16,580 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2022-12-14 06:46:16,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2022-12-14 06:46:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:46:16,581 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:16,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:16,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 06:46:16,581 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:16,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641915, now seen corresponding path program 1 times [2022-12-14 06:46:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:16,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330634468] [2022-12-14 06:46:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:16,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:16,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:16,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:16,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330634468] [2022-12-14 06:46:16,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330634468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:16,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:16,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:46:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144475382] [2022-12-14 06:46:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:16,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:46:16,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:46:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:46:16,917 INFO L87 Difference]: Start difference. First operand 201 states and 236 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:17,414 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2022-12-14 06:46:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:46:17,415 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 06:46:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:17,416 INFO L225 Difference]: With dead ends: 379 [2022-12-14 06:46:17,416 INFO L226 Difference]: Without dead ends: 379 [2022-12-14 06:46:17,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:46:17,416 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 418 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:17,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 576 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:46:17,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-14 06:46:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 207. [2022-12-14 06:46:17,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.3806818181818181) internal successors, (243), 206 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2022-12-14 06:46:17,420 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 28 [2022-12-14 06:46:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:17,420 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2022-12-14 06:46:17,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:17,420 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2022-12-14 06:46:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:46:17,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:17,420 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] [2022-12-14 06:46:17,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 06:46:17,421 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1296793307, now seen corresponding path program 1 times [2022-12-14 06:46:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:17,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007233868] [2022-12-14 06:46:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:17,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007233868] [2022-12-14 06:46:17,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007233868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907894235] [2022-12-14 06:46:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:17,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:17,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:17,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:46:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:17,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 06:46:17,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:17,959 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:17,960 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 [2022-12-14 06:46:17,966 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:17,967 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 [2022-12-14 06:46:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:18,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:46:18,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907894235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:18,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:46:18,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-12-14 06:46:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61880420] [2022-12-14 06:46:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:46:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:18,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:46:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:46:18,027 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 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) [2022-12-14 06:46:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:18,380 INFO L93 Difference]: Finished difference Result 310 states and 341 transitions. [2022-12-14 06:46:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:46:18,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 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 [2022-12-14 06:46:18,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:18,382 INFO L225 Difference]: With dead ends: 310 [2022-12-14 06:46:18,382 INFO L226 Difference]: Without dead ends: 307 [2022-12-14 06:46:18,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:46:18,383 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 269 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:18,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 594 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:46:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-12-14 06:46:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 207. [2022-12-14 06:46:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.375) internal successors, (242), 206 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 242 transitions. [2022-12-14 06:46:18,388 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 242 transitions. Word has length 30 [2022-12-14 06:46:18,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:18,388 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 242 transitions. [2022-12-14 06:46:18,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 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) [2022-12-14 06:46:18,388 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 242 transitions. [2022-12-14 06:46:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:46:18,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:18,389 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] [2022-12-14 06:46:18,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:46:18,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 06:46:18,590 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:18,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1214837820, now seen corresponding path program 1 times [2022-12-14 06:46:18,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:18,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599122425] [2022-12-14 06:46:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:18,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:18,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599122425] [2022-12-14 06:46:18,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599122425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:18,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:18,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 06:46:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082726919] [2022-12-14 06:46:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:18,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:46:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:18,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:46:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:46:18,994 INFO L87 Difference]: Start difference. First operand 207 states and 242 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 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) [2022-12-14 06:46:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:19,564 INFO L93 Difference]: Finished difference Result 393 states and 425 transitions. [2022-12-14 06:46:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 06:46:19,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 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 [2022-12-14 06:46:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:19,567 INFO L225 Difference]: With dead ends: 393 [2022-12-14 06:46:19,567 INFO L226 Difference]: Without dead ends: 393 [2022-12-14 06:46:19,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:46:19,568 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 535 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:19,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 868 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:46:19,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-12-14 06:46:19,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 207. [2022-12-14 06:46:19,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 206 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 241 transitions. [2022-12-14 06:46:19,571 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 241 transitions. Word has length 30 [2022-12-14 06:46:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:19,571 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 241 transitions. [2022-12-14 06:46:19,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 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) [2022-12-14 06:46:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 241 transitions. [2022-12-14 06:46:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:46:19,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:19,571 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] [2022-12-14 06:46:19,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 06:46:19,572 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141919, now seen corresponding path program 1 times [2022-12-14 06:46:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:19,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092356604] [2022-12-14 06:46:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:19,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:19,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092356604] [2022-12-14 06:46:19,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092356604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:19,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:19,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837923] [2022-12-14 06:46:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:19,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:19,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:19,641 INFO L87 Difference]: Start difference. First operand 207 states and 241 transitions. Second operand has 5 states, 4 states have (on average 7.5) 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) [2022-12-14 06:46:19,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:19,754 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2022-12-14 06:46:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:19,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) 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 [2022-12-14 06:46:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:19,755 INFO L225 Difference]: With dead ends: 206 [2022-12-14 06:46:19,756 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 06:46:19,756 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 [2022-12-14 06:46:19,756 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 3 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:19,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 308 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 06:46:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-12-14 06:46:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 176 states have (on average 1.3636363636363635) internal successors, (240), 205 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) [2022-12-14 06:46:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2022-12-14 06:46:19,762 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 30 [2022-12-14 06:46:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:19,762 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2022-12-14 06:46:19,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) 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) [2022-12-14 06:46:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2022-12-14 06:46:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:46:19,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:19,763 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] [2022-12-14 06:46:19,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 06:46:19,763 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:19,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141920, now seen corresponding path program 1 times [2022-12-14 06:46:19,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:19,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190517497] [2022-12-14 06:46:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:19,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:19,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190517497] [2022-12-14 06:46:19,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190517497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:19,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:19,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:19,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474472496] [2022-12-14 06:46:19,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:19,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:19,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:19,914 INFO L87 Difference]: Start difference. First operand 206 states and 240 transitions. Second operand has 5 states, 4 states have (on average 7.5) 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) [2022-12-14 06:46:20,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:20,038 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2022-12-14 06:46:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) 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 [2022-12-14 06:46:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:20,039 INFO L225 Difference]: With dead ends: 205 [2022-12-14 06:46:20,039 INFO L226 Difference]: Without dead ends: 205 [2022-12-14 06:46:20,039 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 [2022-12-14 06:46:20,040 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:20,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 302 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:20,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-14 06:46:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-12-14 06:46:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 176 states have (on average 1.3579545454545454) internal successors, (239), 204 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) [2022-12-14 06:46:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 239 transitions. [2022-12-14 06:46:20,043 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 239 transitions. Word has length 30 [2022-12-14 06:46:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:20,044 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 239 transitions. [2022-12-14 06:46:20,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) 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) [2022-12-14 06:46:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 239 transitions. [2022-12-14 06:46:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 06:46:20,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:20,044 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] [2022-12-14 06:46:20,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 06:46:20,045 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash 90761328, now seen corresponding path program 1 times [2022-12-14 06:46:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:20,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505815691] [2022-12-14 06:46:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:46:20,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:20,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505815691] [2022-12-14 06:46:20,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505815691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:20,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:20,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:46:20,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794033128] [2022-12-14 06:46:20,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:20,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:46:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:20,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:46:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:46:20,184 INFO L87 Difference]: Start difference. First operand 205 states and 239 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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) [2022-12-14 06:46:20,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:20,417 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2022-12-14 06:46:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:46:20,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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 31 [2022-12-14 06:46:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:20,418 INFO L225 Difference]: With dead ends: 269 [2022-12-14 06:46:20,419 INFO L226 Difference]: Without dead ends: 269 [2022-12-14 06:46:20,419 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 [2022-12-14 06:46:20,419 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 276 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:20,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 444 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-12-14 06:46:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 193. [2022-12-14 06:46:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 164 states have (on average 1.3719512195121952) internal successors, (225), 192 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2022-12-14 06:46:20,422 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 31 [2022-12-14 06:46:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:20,422 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2022-12-14 06:46:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 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) [2022-12-14 06:46:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2022-12-14 06:46:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 06:46:20,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:20,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:20,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 06:46:20,423 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2044341774, now seen corresponding path program 1 times [2022-12-14 06:46:20,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:20,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353799601] [2022-12-14 06:46:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:20,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:20,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:20,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353799601] [2022-12-14 06:46:20,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353799601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:20,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:20,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:20,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587795584] [2022-12-14 06:46:20,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:20,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:20,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:20,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:20,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:20,484 INFO L87 Difference]: Start difference. First operand 193 states and 225 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:20,602 INFO L93 Difference]: Finished difference Result 203 states and 234 transitions. [2022-12-14 06:46:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:46:20,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 06:46:20,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:20,602 INFO L225 Difference]: With dead ends: 203 [2022-12-14 06:46:20,602 INFO L226 Difference]: Without dead ends: 203 [2022-12-14 06:46:20,603 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 [2022-12-14 06:46:20,603 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 27 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:20,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 232 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-14 06:46:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2022-12-14 06:46:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 192 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-12-14 06:46:20,607 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 31 [2022-12-14 06:46:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:20,607 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-12-14 06:46:20,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-12-14 06:46:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:46:20,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:20,608 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] [2022-12-14 06:46:20,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 06:46:20,608 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:20,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1566178367, now seen corresponding path program 1 times [2022-12-14 06:46:20,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:20,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099525292] [2022-12-14 06:46:20,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:20,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:20,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099525292] [2022-12-14 06:46:20,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099525292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:20,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:20,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:46:20,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737062860] [2022-12-14 06:46:20,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:20,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:46:20,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:46:20,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:46:20,722 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2022-12-14 06:46:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:20,812 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2022-12-14 06:46:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:46:20,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 [2022-12-14 06:46:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:20,813 INFO L225 Difference]: With dead ends: 206 [2022-12-14 06:46:20,813 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 06:46:20,814 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 [2022-12-14 06:46:20,814 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 12 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:20,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 272 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 06:46:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2022-12-14 06:46:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 194 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2022-12-14 06:46:20,818 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 32 [2022-12-14 06:46:20,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:20,818 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2022-12-14 06:46:20,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2022-12-14 06:46:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2022-12-14 06:46:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:46:20,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:20,819 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] [2022-12-14 06:46:20,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 06:46:20,819 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853815, now seen corresponding path program 1 times [2022-12-14 06:46:20,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:20,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068357356] [2022-12-14 06:46:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:20,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:21,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:21,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068357356] [2022-12-14 06:46:21,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068357356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:21,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:21,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:46:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817311770] [2022-12-14 06:46:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:21,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:46:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:21,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:46:21,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:46:21,055 INFO L87 Difference]: Start difference. First operand 195 states and 226 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) 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) [2022-12-14 06:46:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:21,338 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2022-12-14 06:46:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:46:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) 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 [2022-12-14 06:46:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:21,339 INFO L225 Difference]: With dead ends: 195 [2022-12-14 06:46:21,339 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 06:46:21,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:46:21,340 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 168 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:21,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 547 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 06:46:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2022-12-14 06:46:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 166 states have (on average 1.355421686746988) internal successors, (225), 193 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2022-12-14 06:46:21,343 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 32 [2022-12-14 06:46:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:21,343 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2022-12-14 06:46:21,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) 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) [2022-12-14 06:46:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2022-12-14 06:46:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:46:21,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:21,344 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] [2022-12-14 06:46:21,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 06:46:21,344 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853814, now seen corresponding path program 1 times [2022-12-14 06:46:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:21,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637236825] [2022-12-14 06:46:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:21,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:21,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637236825] [2022-12-14 06:46:21,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637236825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:21,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:21,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:46:21,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662454641] [2022-12-14 06:46:21,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:21,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:46:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:46:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:46:21,646 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) 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) [2022-12-14 06:46:21,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:21,952 INFO L93 Difference]: Finished difference Result 194 states and 225 transitions. [2022-12-14 06:46:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:46:21,953 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) 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 [2022-12-14 06:46:21,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:21,954 INFO L225 Difference]: With dead ends: 194 [2022-12-14 06:46:21,954 INFO L226 Difference]: Without dead ends: 194 [2022-12-14 06:46:21,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:46:21,954 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 164 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:21,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 384 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-12-14 06:46:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2022-12-14 06:46:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 192 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-12-14 06:46:21,956 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 32 [2022-12-14 06:46:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:21,957 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-12-14 06:46:21,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) 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) [2022-12-14 06:46:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-12-14 06:46:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 06:46:21,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:21,957 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] [2022-12-14 06:46:21,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 06:46:21,958 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:21,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:21,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1834861821, now seen corresponding path program 1 times [2022-12-14 06:46:21,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:21,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023737373] [2022-12-14 06:46:21,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:21,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:22,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:22,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023737373] [2022-12-14 06:46:22,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023737373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:22,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:22,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:46:22,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044763110] [2022-12-14 06:46:22,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:22,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:46:22,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:46:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:46:22,370 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:22,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:22,816 INFO L93 Difference]: Finished difference Result 296 states and 322 transitions. [2022-12-14 06:46:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 06:46:22,816 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-12-14 06:46:22,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:22,817 INFO L225 Difference]: With dead ends: 296 [2022-12-14 06:46:22,817 INFO L226 Difference]: Without dead ends: 296 [2022-12-14 06:46:22,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:46:22,817 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 441 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:22,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 715 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:46:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-12-14 06:46:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 193. [2022-12-14 06:46:22,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 192 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) [2022-12-14 06:46:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions. [2022-12-14 06:46:22,820 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 33 [2022-12-14 06:46:22,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:22,820 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions. [2022-12-14 06:46:22,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions. [2022-12-14 06:46:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 06:46:22,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:22,821 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] [2022-12-14 06:46:22,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 06:46:22,821 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1306585279, now seen corresponding path program 1 times [2022-12-14 06:46:22,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:22,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037955267] [2022-12-14 06:46:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:22,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:22,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:22,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037955267] [2022-12-14 06:46:22,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037955267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:22,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:22,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:46:22,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819621656] [2022-12-14 06:46:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:22,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:22,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:46:22,886 INFO L87 Difference]: Start difference. First operand 193 states and 223 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:22,958 INFO L93 Difference]: Finished difference Result 199 states and 230 transitions. [2022-12-14 06:46:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:46:22,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-12-14 06:46:22,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:22,960 INFO L225 Difference]: With dead ends: 199 [2022-12-14 06:46:22,960 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 06:46:22,960 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 [2022-12-14 06:46:22,960 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:22,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 257 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:22,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 06:46:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 191. [2022-12-14 06:46:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 165 states have (on average 1.3393939393939394) internal successors, (221), 190 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) [2022-12-14 06:46:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 221 transitions. [2022-12-14 06:46:22,962 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 221 transitions. Word has length 33 [2022-12-14 06:46:22,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:22,963 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 221 transitions. [2022-12-14 06:46:22,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 221 transitions. [2022-12-14 06:46:22,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 06:46:22,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:22,963 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] [2022-12-14 06:46:22,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 06:46:22,963 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:22,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:22,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1884404572, now seen corresponding path program 1 times [2022-12-14 06:46:22,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:22,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587862485] [2022-12-14 06:46:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:22,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:23,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:23,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587862485] [2022-12-14 06:46:23,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587862485] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:23,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155554119] [2022-12-14 06:46:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:23,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:23,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:23,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:46:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:23,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 06:46:23,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:23,146 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 [2022-12-14 06:46:23,149 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 [2022-12-14 06:46:23,154 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 [2022-12-14 06:46:23,157 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 [2022-12-14 06:46:23,170 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 [2022-12-14 06:46:23,174 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 [2022-12-14 06:46:23,223 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 [2022-12-14 06:46:23,226 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 [2022-12-14 06:46:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:23,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:23,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155554119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394558204] [2022-12-14 06:46:23,306 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-12-14 06:46:23,306 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:23,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:23,307 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:23,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:23,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,324 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 [2022-12-14 06:46:23,335 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 [2022-12-14 06:46:23,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,342 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 [2022-12-14 06:46:23,348 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 [2022-12-14 06:46:23,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,360 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 [2022-12-14 06:46:23,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,367 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 [2022-12-14 06:46:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,376 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 [2022-12-14 06:46:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,406 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 30 treesize of output 32 [2022-12-14 06:46:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,416 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 [2022-12-14 06:46:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:23,425 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 30 treesize of output 32 [2022-12-14 06:46:23,585 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 [2022-12-14 06:46:23,617 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 [2022-12-14 06:46:23,651 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 [2022-12-14 06:46:23,709 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:25,227 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15166#(and (<= |#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 [2022-12-14 06:46:25,228 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:46:25,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:25,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 7 [2022-12-14 06:46:25,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984196336] [2022-12-14 06:46:25,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:46:25,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:46:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:25,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:46:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-12-14 06:46:25,229 INFO L87 Difference]: Start difference. First operand 191 states and 221 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:25,452 INFO L93 Difference]: Finished difference Result 295 states and 321 transitions. [2022-12-14 06:46:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 06:46:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 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 35 [2022-12-14 06:46:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:25,453 INFO L225 Difference]: With dead ends: 295 [2022-12-14 06:46:25,453 INFO L226 Difference]: Without dead ends: 295 [2022-12-14 06:46:25,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2022-12-14 06:46:25,454 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 156 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:25,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 418 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:46:25,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-12-14 06:46:25,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 226. [2022-12-14 06:46:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 200 states have (on average 1.375) internal successors, (275), 225 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 275 transitions. [2022-12-14 06:46:25,456 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 275 transitions. Word has length 35 [2022-12-14 06:46:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:25,456 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 275 transitions. [2022-12-14 06:46:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 275 transitions. [2022-12-14 06:46:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 06:46:25,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:25,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:46:25,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:46:25,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-14 06:46:25,657 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:25,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1884408352, now seen corresponding path program 1 times [2022-12-14 06:46:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:25,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369431997] [2022-12-14 06:46:25,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:25,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:25,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369431997] [2022-12-14 06:46:25,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369431997] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:25,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723218017] [2022-12-14 06:46:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:25,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:25,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:25,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:46:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:25,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 06:46:25,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:25,824 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 [2022-12-14 06:46:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:25,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:46:25,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723218017] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:25,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981511615] [2022-12-14 06:46:25,865 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-12-14 06:46:25,865 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:25,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:25,866 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:25,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,885 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 [2022-12-14 06:46:25,896 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 [2022-12-14 06:46:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,904 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 [2022-12-14 06:46:25,911 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 [2022-12-14 06:46:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,922 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 [2022-12-14 06:46:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,929 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 [2022-12-14 06:46:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,937 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 [2022-12-14 06:46:25,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,969 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 30 treesize of output 32 [2022-12-14 06:46:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,977 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 [2022-12-14 06:46:25,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:25,985 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 30 treesize of output 32 [2022-12-14 06:46:26,120 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 [2022-12-14 06:46:26,170 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 [2022-12-14 06:46:26,215 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 [2022-12-14 06:46:26,286 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:28,296 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15925#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| 0) (= |ULTIMATE.start_main_~end~0#1.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 [2022-12-14 06:46:28,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:46:28,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:28,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2022-12-14 06:46:28,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656134819] [2022-12-14 06:46:28,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:46:28,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:46:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:46:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:46:28,298 INFO L87 Difference]: Start difference. First operand 226 states and 275 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:28,437 INFO L93 Difference]: Finished difference Result 229 states and 277 transitions. [2022-12-14 06:46:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:46:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 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 35 [2022-12-14 06:46:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:28,438 INFO L225 Difference]: With dead ends: 229 [2022-12-14 06:46:28,438 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 06:46:28,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:46:28,439 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:28,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:28,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 06:46:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-12-14 06:46:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 184 states have (on average 1.4021739130434783) 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) [2022-12-14 06:46:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2022-12-14 06:46:28,443 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 35 [2022-12-14 06:46:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:28,443 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2022-12-14 06:46:28,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2022-12-14 06:46:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 06:46:28,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:28,444 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] [2022-12-14 06:46:28,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:46:28,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:28,646 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:28,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1186708526, now seen corresponding path program 1 times [2022-12-14 06:46:28,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:28,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905241674] [2022-12-14 06:46:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:28,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:28,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905241674] [2022-12-14 06:46:28,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905241674] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:28,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615614607] [2022-12-14 06:46:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:28,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:28,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:28,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:28,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:46:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:46:28,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:28,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:28,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615614607] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:28,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1465938077] [2022-12-14 06:46:28,839 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-12-14 06:46:28,839 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:28,839 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:28,839 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:28,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,863 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 [2022-12-14 06:46:28,876 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 [2022-12-14 06:46:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,883 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 [2022-12-14 06:46:28,890 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 [2022-12-14 06:46:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,903 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 [2022-12-14 06:46:28,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,911 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 [2022-12-14 06:46:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,917 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 [2022-12-14 06:46:28,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,945 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 [2022-12-14 06:46:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,962 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 30 treesize of output 32 [2022-12-14 06:46:28,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 06:46:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:28,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:46:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,021 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:46:29,021 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-12-14 06:46:29,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-12-14 06:46:29,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,044 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 [2022-12-14 06:46:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:29,085 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:46:29,086 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 4 case distinctions, treesize of input 243 treesize of output 164 [2022-12-14 06:46:29,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,106 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-12-14 06:46:29,106 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 134 [2022-12-14 06:46:29,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:29,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-12-14 06:46:29,569 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:32,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1465938077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:32,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:32,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 25 [2022-12-14 06:46:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891744960] [2022-12-14 06:46:32,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:32,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 06:46:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:32,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 06:46:32,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:46:32,732 INFO L87 Difference]: Start difference. First operand 210 states and 258 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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) [2022-12-14 06:46:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:34,401 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2022-12-14 06:46:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 06:46:34,402 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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 37 [2022-12-14 06:46:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:34,402 INFO L225 Difference]: With dead ends: 235 [2022-12-14 06:46:34,402 INFO L226 Difference]: Without dead ends: 235 [2022-12-14 06:46:34,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2022-12-14 06:46:34,403 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 149 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:34,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 535 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 06:46:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-12-14 06:46:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2022-12-14 06:46:34,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 190 states have (on average 1.3842105263157896) internal successors, (263), 215 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:46:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 263 transitions. [2022-12-14 06:46:34,405 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 263 transitions. Word has length 37 [2022-12-14 06:46:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:34,405 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 263 transitions. [2022-12-14 06:46:34,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 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) [2022-12-14 06:46:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 263 transitions. [2022-12-14 06:46:34,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 06:46:34,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:34,406 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] [2022-12-14 06:46:34,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 06:46:34,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-14 06:46:34,607 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:34,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2004688172, now seen corresponding path program 1 times [2022-12-14 06:46:34,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:34,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978278455] [2022-12-14 06:46:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:34,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:46:34,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978278455] [2022-12-14 06:46:34,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978278455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:34,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:46:34,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:46:34,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34982795] [2022-12-14 06:46:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:34,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:46:34,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:46:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:46:34,668 INFO L87 Difference]: Start difference. First operand 216 states and 263 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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) [2022-12-14 06:46:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:46:34,723 INFO L93 Difference]: Finished difference Result 222 states and 266 transitions. [2022-12-14 06:46:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:46:34,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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 [2022-12-14 06:46:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:46:34,724 INFO L225 Difference]: With dead ends: 222 [2022-12-14 06:46:34,724 INFO L226 Difference]: Without dead ends: 222 [2022-12-14 06:46:34,724 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 [2022-12-14 06:46:34,725 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 77 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:46:34,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 108 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:46:34,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-12-14 06:46:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2022-12-14 06:46:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 189 states have (on average 1.3650793650793651) internal successors, (258), 213 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) [2022-12-14 06:46:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2022-12-14 06:46:34,727 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 44 [2022-12-14 06:46:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:46:34,727 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2022-12-14 06:46:34,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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) [2022-12-14 06:46:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2022-12-14 06:46:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 06:46:34,727 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:46:34,728 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] [2022-12-14 06:46:34,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 06:46:34,728 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:46:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:46:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash -810433761, now seen corresponding path program 1 times [2022-12-14 06:46:34,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:46:34,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657847727] [2022-12-14 06:46:34,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:34,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:46:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:35,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:46:35,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657847727] [2022-12-14 06:46:35,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657847727] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:46:35,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567312716] [2022-12-14 06:46:35,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:46:35,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:46:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:46:35,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:46:35,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 06:46:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:46:35,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 06:46:35,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:46:35,376 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 [2022-12-14 06:46:35,404 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 [2022-12-14 06:46:35,407 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 [2022-12-14 06:46:35,485 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:46:35,485 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 [2022-12-14 06:46:35,533 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:46:35,533 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 [2022-12-14 06:46:35,545 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-12-14 06:46:35,545 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 20 [2022-12-14 06:46:35,638 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:46:35,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 50 [2022-12-14 06:46:35,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:46:35,762 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:46:35,762 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 [2022-12-14 06:46:35,771 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:46:35,771 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 [2022-12-14 06:46:35,935 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:46:35,936 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 [2022-12-14 06:46:35,945 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:46:35,945 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 [2022-12-14 06:46:36,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:36,253 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 [2022-12-14 06:46:36,260 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:36,261 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 46 treesize of output 42 [2022-12-14 06:46:36,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:36,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:46:36,732 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1377))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1378) .cse0 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse2 .cse0 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)))))) (forall ((v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1377))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= .cse3 0) (= (select |c_#valid| .cse3) 1)))))) is different from false [2022-12-14 06:46:36,749 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1377))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1378) .cse1 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse3 .cse1 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1)))))) (forall ((v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1377))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= .cse4 0) (= (select |c_#valid| .cse4) 1)))))) is different from false [2022-12-14 06:46:36,766 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1378) .cse0 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse2 .cse0 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse4 (select (select (let ((.cse5 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |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_1377))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= 0 .cse4) (= (select |c_#valid| .cse4) 1)))))) is different from false [2022-12-14 06:46:37,352 INFO L321 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-12-14 06:46:37,352 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 48 treesize of output 54 [2022-12-14 06:46:37,371 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-12-14 06:46:37,371 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 89 treesize of output 75 [2022-12-14 06:46:37,381 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:37,382 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 225 treesize of output 163 [2022-12-14 06:46:37,394 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 06:46:37,394 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 122 treesize of output 100 [2022-12-14 06:46:37,406 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 18 treesize of output 14 [2022-12-14 06:46:37,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:37,414 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 61 treesize of output 59 [2022-12-14 06:46:37,419 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 12 treesize of output 8 [2022-12-14 06:46:37,424 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 [2022-12-14 06:46:37,460 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-12-14 06:46:37,460 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 102 treesize of output 75 [2022-12-14 06:46:37,467 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:37,467 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 278 treesize of output 202 [2022-12-14 06:46:37,471 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 175 treesize of output 159 [2022-12-14 06:46:37,480 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:46:37,480 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 159 treesize of output 145 [2022-12-14 06:46:43,603 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 33 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:46:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:46:43,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567312716] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:46:43,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [594904088] [2022-12-14 06:46:43,626 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 06:46:43,626 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:46:43,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:46:43,627 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:46:43,627 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:46:43,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,656 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 [2022-12-14 06:46:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,667 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 [2022-12-14 06:46:43,672 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 [2022-12-14 06:46:43,679 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 [2022-12-14 06:46:43,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,689 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 [2022-12-14 06:46:43,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,696 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 [2022-12-14 06:46:43,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,704 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 34 treesize of output 21 [2022-12-14 06:46:43,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:46:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,744 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 30 treesize of output 32 [2022-12-14 06:46:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,753 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 30 treesize of output 32 [2022-12-14 06:46:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,806 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 [2022-12-14 06:46:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,824 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-12-14 06:46:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,836 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 35 [2022-12-14 06:46:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,849 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 [2022-12-14 06:46:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:43,882 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 06:46:43,882 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-12-14 06:46:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-12-14 06:46:43,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,907 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 42 treesize of output 21 [2022-12-14 06:46:43,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,935 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 [2022-12-14 06:46:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:43,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:43,962 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 06:46:43,963 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 4 case distinctions, treesize of input 117 treesize of output 96 [2022-12-14 06:46:43,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:43,980 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 51 treesize of output 55 [2022-12-14 06:46:44,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,043 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 53 treesize of output 64 [2022-12-14 06:46:44,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,059 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 60 treesize of output 67 [2022-12-14 06:46:44,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,074 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 [2022-12-14 06:46:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,145 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 [2022-12-14 06:46:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,167 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 [2022-12-14 06:46:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,180 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 60 treesize of output 67 [2022-12-14 06:46:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:46:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,261 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-14 06:46:44,261 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 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-12-14 06:46:44,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,282 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-12-14 06:46:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,294 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 54 treesize of output 21 [2022-12-14 06:46:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,420 INFO L321 Elim1Store]: treesize reduction 320, result has 16.7 percent of original size [2022-12-14 06:46:44,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 431 treesize of output 273 [2022-12-14 06:46:44,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,451 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-12-14 06:46:44,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 211 treesize of output 165 [2022-12-14 06:46:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 06:46:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,691 INFO L321 Elim1Store]: treesize reduction 170, result has 11.0 percent of original size [2022-12-14 06:46:44,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 526 treesize of output 473 [2022-12-14 06:46:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,707 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 524 treesize of output 503 [2022-12-14 06:46:44,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:44,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:44,758 INFO L321 Elim1Store]: treesize reduction 206, result has 12.3 percent of original size [2022-12-14 06:46:44,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 518 treesize of output 518 [2022-12-14 06:46:45,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,320 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 06:46:45,320 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 1025 treesize of output 1003 [2022-12-14 06:46:45,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,629 INFO L321 Elim1Store]: treesize reduction 388, result has 14.5 percent of original size [2022-12-14 06:46:45,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 41 case distinctions, treesize of input 1140 treesize of output 1060 [2022-12-14 06:46:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:45,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:45,762 INFO L321 Elim1Store]: treesize reduction 308, result has 17.6 percent of original size [2022-12-14 06:46:45,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 1124 treesize of output 951 [2022-12-14 06:46:45,819 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:46:45,820 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 1119 treesize of output 1086 [2022-12-14 06:46:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,231 INFO L321 Elim1Store]: treesize reduction 234, result has 11.7 percent of original size [2022-12-14 06:46:46,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 38 case distinctions, treesize of input 709 treesize of output 590 [2022-12-14 06:46:46,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,254 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 602 treesize of output 561 [2022-12-14 06:46:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,398 INFO L321 Elim1Store]: treesize reduction 522, result has 13.6 percent of original size [2022-12-14 06:46:46,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 636 treesize of output 622 [2022-12-14 06:46:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:46,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:46,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:47,131 INFO L321 Elim1Store]: treesize reduction 1000, result has 10.4 percent of original size [2022-12-14 06:46:47,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 1225 treesize of output 756 [2022-12-14 06:46:47,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:47,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:47,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:47,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:47,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:47,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:46:47,670 INFO L321 Elim1Store]: treesize reduction 1036, result has 11.0 percent of original size [2022-12-14 06:46:47,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 18 new quantified variables, introduced 91 case distinctions, treesize of input 1281 treesize of output 1023 [2022-12-14 06:46:47,736 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:46:47,736 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 1079 treesize of output 1062 [2022-12-14 06:46:50,337 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 [2022-12-14 06:46:50,341 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 [2022-12-14 06:46:50,344 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:46:50,364 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:46:50,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 06:46:50,377 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:46:50,377 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 [2022-12-14 06:46:50,384 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 [2022-12-14 06:46:50,388 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 [2022-12-14 06:46:50,394 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 [2022-12-14 06:46:50,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:46:50,412 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:46:50,413 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 155 treesize of output 112 [2022-12-14 06:46:50,418 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-12-14 06:46:50,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-12-14 06:46:50,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 06:46:50,566 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:46:50,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-12-14 06:46:50,695 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:46:50,695 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 19 case distinctions, treesize of input 181 treesize of output 223 [2022-12-14 06:46:51,165 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 [2022-12-14 06:46:51,168 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 [2022-12-14 06:46:51,172 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 [2022-12-14 06:46:51,224 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 [2022-12-14 06:46:51,228 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 [2022-12-14 06:46:51,235 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 [2022-12-14 06:46:51,238 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 [2022-12-14 06:46:51,242 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 [2022-12-14 06:46:51,264 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:46:51,264 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 138 treesize of output 96 [2022-12-14 06:46:51,284 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 06:46:51,284 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 104 treesize of output 94 [2022-12-14 06:46:51,290 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 27 treesize of output 1 [2022-12-14 06:46:51,317 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:46:53,777 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17818#(and (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (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|) (= |#NULL.base| 0))' at error location [2022-12-14 06:46:53,778 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:46:53,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:53,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 37 [2022-12-14 06:46:53,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57277852] [2022-12-14 06:46:53,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:46:53,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-14 06:46:53,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-14 06:46:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=3150, Unknown=15, NotChecked=354, Total=3906 [2022-12-14 06:46:53,781 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 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) [2022-12-14 06:46:56,079 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|))) (let ((.cse3 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8)) (.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|)) (.cse4 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse1 (select .cse2 |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= (select .cse0 |c_ULTIMATE.start_main_~list~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (= .cse1 0) (= |c_ULTIMATE.start_main_#t~malloc10#1.offset| 0) (= (select .cse2 .cse3) 0) (= (select .cse4 .cse3) 0) (= (select .cse0 .cse5) 0) (= (select |c_#valid| |c_ULTIMATE.start_main_#t~malloc10#1.base|) 1) (not (<= (+ |c_ULTIMATE.start_main_~list~0#1.offset| 1) |c_ULTIMATE.start_main_~end~0#1.offset|)) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse4 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse2 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1378) .cse6 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse7 .cse6 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5)) 1)))))) (not (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) (= |c_ULTIMATE.start_main_~end~0#1.offset| 0) (= (select .cse4 .cse5) 0) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse8 (select (select (let ((.cse9 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse4 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (store .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5))) (or (= 0 .cse8) (= (select |c_#valid| .cse8) 1)))) (= .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.offset|) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse5) 0) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~end~0#1.base|)))) is different from false [2022-12-14 06:47:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:32,081 INFO L93 Difference]: Finished difference Result 611 states and 695 transitions. [2022-12-14 06:47:32,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-14 06:47:32,082 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 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 [2022-12-14 06:47:32,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:32,084 INFO L225 Difference]: With dead ends: 611 [2022-12-14 06:47:32,084 INFO L226 Difference]: Without dead ends: 611 [2022-12-14 06:47:32,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 4598 ImplicationChecksByTransitivity, 42.3s TimeCoverageRelationStatistics Valid=1477, Invalid=12413, Unknown=168, NotChecked=948, Total=15006 [2022-12-14 06:47:32,086 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1820 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 155 mSolverCounterUnsat, 60 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 60 IncrementalHoareTripleChecker+Unknown, 1086 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:32,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 2047 Invalid, 3485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 2184 Invalid, 60 Unknown, 1086 Unchecked, 5.5s Time] [2022-12-14 06:47:32,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-14 06:47:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 274. [2022-12-14 06:47:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 249 states have (on average 1.3052208835341366) internal successors, (325), 273 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 325 transitions. [2022-12-14 06:47:32,090 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 325 transitions. Word has length 44 [2022-12-14 06:47:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:32,090 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 325 transitions. [2022-12-14 06:47:32,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 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) [2022-12-14 06:47:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 325 transitions. [2022-12-14 06:47:32,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 06:47:32,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:32,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:32,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 06:47:32,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-14 06:47:32,292 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:47:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795631, now seen corresponding path program 1 times [2022-12-14 06:47:32,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:32,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140538092] [2022-12-14 06:47:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:47:32,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:32,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140538092] [2022-12-14 06:47:32,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140538092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:32,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:32,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:47:32,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701188482] [2022-12-14 06:47:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:32,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:47:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:32,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:47:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:32,543 INFO L87 Difference]: Start difference. First operand 274 states and 325 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:33,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:33,138 INFO L93 Difference]: Finished difference Result 285 states and 331 transitions. [2022-12-14 06:47:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:47:33,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-12-14 06:47:33,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:33,140 INFO L225 Difference]: With dead ends: 285 [2022-12-14 06:47:33,140 INFO L226 Difference]: Without dead ends: 285 [2022-12-14 06:47:33,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:47:33,140 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 299 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:33,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 295 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:47:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-12-14 06:47:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 274. [2022-12-14 06:47:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 249 states have (on average 1.3012048192771084) internal successors, (324), 273 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 324 transitions. [2022-12-14 06:47:33,143 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 324 transitions. Word has length 45 [2022-12-14 06:47:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:33,143 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 324 transitions. [2022-12-14 06:47:33,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 324 transitions. [2022-12-14 06:47:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 06:47:33,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:33,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:33,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 06:47:33,144 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:47:33,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:33,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795632, now seen corresponding path program 1 times [2022-12-14 06:47:33,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:33,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774891838] [2022-12-14 06:47:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:33,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:47:33,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:33,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774891838] [2022-12-14 06:47:33,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774891838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:47:33,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:47:33,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:47:33,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692397350] [2022-12-14 06:47:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:47:33,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:47:33,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:47:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:47:33,493 INFO L87 Difference]: Start difference. First operand 274 states and 324 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:34,150 INFO L93 Difference]: Finished difference Result 286 states and 332 transitions. [2022-12-14 06:47:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 06:47:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-12-14 06:47:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:34,151 INFO L225 Difference]: With dead ends: 286 [2022-12-14 06:47:34,151 INFO L226 Difference]: Without dead ends: 286 [2022-12-14 06:47:34,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:47:34,152 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 213 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:34,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 314 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 06:47:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-12-14 06:47:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 274. [2022-12-14 06:47:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 249 states have (on average 1.2931726907630523) internal successors, (322), 273 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 322 transitions. [2022-12-14 06:47:34,155 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 322 transitions. Word has length 45 [2022-12-14 06:47:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:34,155 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 322 transitions. [2022-12-14 06:47:34,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:47:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 322 transitions. [2022-12-14 06:47:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 06:47:34,155 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:34,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:34,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 06:47:34,156 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:47:34,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711168, now seen corresponding path program 1 times [2022-12-14 06:47:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:34,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689636008] [2022-12-14 06:47:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:47:34,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689636008] [2022-12-14 06:47:34,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689636008] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563296935] [2022-12-14 06:47:34,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:34,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:34,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:34,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:34,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:47:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:34,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 06:47:34,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:34,757 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 [2022-12-14 06:47:34,885 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:47:34,885 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 [2022-12-14 06:47:34,924 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 [2022-12-14 06:47:35,035 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:47:35,035 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 [2022-12-14 06:47:35,098 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:47:35,099 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 [2022-12-14 06:47:35,203 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:47:35,203 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 [2022-12-14 06:47:35,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:35,411 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 [2022-12-14 06:47:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:47:35,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:38,204 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:47:38,205 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 38 treesize of output 31 [2022-12-14 06:47:38,218 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:47:38,218 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 144 treesize of output 131 [2022-12-14 06:47:38,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:47:38,234 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 116 treesize of output 114 [2022-12-14 06:47:38,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 102 [2022-12-14 06:47:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:47:45,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563296935] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:47:45,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1304344921] [2022-12-14 06:47:45,078 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 06:47:45,078 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:47:45,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:47:45,079 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:47:45,079 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:47:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,107 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 [2022-12-14 06:47:45,120 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 [2022-12-14 06:47:45,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,129 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 [2022-12-14 06:47:45,136 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 [2022-12-14 06:47:45,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,148 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 [2022-12-14 06:47:45,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,156 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 [2022-12-14 06:47:45,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,164 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 [2022-12-14 06:47:45,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:47:45,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,215 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 30 treesize of output 32 [2022-12-14 06:47:45,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,224 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 30 treesize of output 32 [2022-12-14 06:47:45,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,285 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 [2022-12-14 06:47:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,306 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-12-14 06:47:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,320 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 35 [2022-12-14 06:47:45,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,334 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 [2022-12-14 06:47:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,372 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 06:47:45,372 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-12-14 06:47:45,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-12-14 06:47:45,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-12-14 06:47:45,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,455 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 06:47:45,456 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 4 case distinctions, treesize of input 144 treesize of output 119 [2022-12-14 06:47:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,484 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:47:45,484 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 76 [2022-12-14 06:47:45,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,499 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 [2022-12-14 06:47:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:47:45,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,558 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 53 treesize of output 64 [2022-12-14 06:47:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,577 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 53 treesize of output 64 [2022-12-14 06:47:45,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,642 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 [2022-12-14 06:47:45,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:47:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,695 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 [2022-12-14 06:47:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,714 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 60 treesize of output 67 [2022-12-14 06:47:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,782 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-14 06:47:45,782 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 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-12-14 06:47:45,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,810 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-12-14 06:47:45,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,826 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 54 treesize of output 21 [2022-12-14 06:47:45,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,856 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 [2022-12-14 06:47:45,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:45,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:45,977 INFO L321 Elim1Store]: treesize reduction 280, result has 16.2 percent of original size [2022-12-14 06:47:45,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 340 treesize of output 222 [2022-12-14 06:47:45,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,020 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:47:46,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 122 [2022-12-14 06:47:46,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,273 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-12-14 06:47:46,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 533 treesize of output 480 [2022-12-14 06:47:46,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:46,344 INFO L321 Elim1Store]: treesize reduction 114, result has 20.3 percent of original size [2022-12-14 06:47:46,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 527 treesize of output 531 [2022-12-14 06:47:46,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,368 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 527 treesize of output 506 [2022-12-14 06:47:46,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:46,960 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 06:47:46,960 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 1047 treesize of output 1021 [2022-12-14 06:47:47,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,267 INFO L321 Elim1Store]: treesize reduction 92, result has 22.7 percent of original size [2022-12-14 06:47:47,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 1162 treesize of output 983 [2022-12-14 06:47:47,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,355 INFO L321 Elim1Store]: treesize reduction 140, result has 11.9 percent of original size [2022-12-14 06:47:47,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 1162 treesize of output 1084 [2022-12-14 06:47:47,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,406 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 06:47:47,406 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 1141 treesize of output 1108 [2022-12-14 06:47:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:47,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:47,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,034 INFO L321 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2022-12-14 06:47:48,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 1880 treesize of output 1463 [2022-12-14 06:47:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,082 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 1773 treesize of output 1700 [2022-12-14 06:47:48,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,295 INFO L321 Elim1Store]: treesize reduction 444, result has 15.9 percent of original size [2022-12-14 06:47:48,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 1807 treesize of output 1667 [2022-12-14 06:47:48,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:48,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:49,135 INFO L321 Elim1Store]: treesize reduction 548, result has 16.2 percent of original size [2022-12-14 06:47:49,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 3 disjoint index pairs (out of 55 index pairs), introduced 16 new quantified variables, introduced 66 case distinctions, treesize of input 1141 treesize of output 709 [2022-12-14 06:47:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:49,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:47:49,686 INFO L321 Elim1Store]: treesize reduction 840, result has 16.5 percent of original size [2022-12-14 06:47:49,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 57 case distinctions, treesize of input 1080 treesize of output 1011 [2022-12-14 06:47:49,771 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:47:49,771 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 955 treesize of output 938 [2022-12-14 06:47:52,562 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 [2022-12-14 06:47:52,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:47:52,573 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 [2022-12-14 06:47:52,612 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:47:52,612 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 [2022-12-14 06:47:52,645 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:47:52,645 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 [2022-12-14 06:47:52,656 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 [2022-12-14 06:47:52,661 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 [2022-12-14 06:47:52,669 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 [2022-12-14 06:47:52,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:47:52,706 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:47:52,707 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 155 treesize of output 112 [2022-12-14 06:47:52,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-12-14 06:47:52,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-12-14 06:47:53,007 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:47:53,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-12-14 06:47:53,293 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:47:53,294 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 19 case distinctions, treesize of input 181 treesize of output 223 [2022-12-14 06:47:54,222 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 15 treesize of output 1 [2022-12-14 06:47:54,249 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 [2022-12-14 06:47:54,254 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 [2022-12-14 06:47:54,258 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 [2022-12-14 06:47:54,403 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 [2022-12-14 06:47:54,408 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 [2022-12-14 06:47:54,417 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 [2022-12-14 06:47:54,423 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 [2022-12-14 06:47:54,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 06:47:54,464 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:47:54,464 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 138 treesize of output 96 [2022-12-14 06:47:54,501 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 06:47:54,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-12-14 06:47:54,509 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 27 treesize of output 1 [2022-12-14 06:47:54,538 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:47:57,937 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20310#(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 [2022-12-14 06:47:57,937 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:47:57,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:47:57,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 27 [2022-12-14 06:47:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786628250] [2022-12-14 06:47:57,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:47:57,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 06:47:57,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:47:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 06:47:57,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=2712, Unknown=16, NotChecked=0, Total=3080 [2022-12-14 06:47:57,940 INFO L87 Difference]: Start difference. First operand 274 states and 322 transitions. Second operand has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:48:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:02,069 INFO L93 Difference]: Finished difference Result 729 states and 813 transitions. [2022-12-14 06:48:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-14 06:48:02,069 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 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 46 [2022-12-14 06:48:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:02,071 INFO L225 Difference]: With dead ends: 729 [2022-12-14 06:48:02,071 INFO L226 Difference]: Without dead ends: 729 [2022-12-14 06:48:02,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2571 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=817, Invalid=5647, Unknown=16, NotChecked=0, Total=6480 [2022-12-14 06:48:02,073 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1995 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:02,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 1132 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 06:48:02,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-12-14 06:48:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 374. [2022-12-14 06:48:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 349 states have (on average 1.2693409742120343) internal successors, (443), 373 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:48:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 443 transitions. [2022-12-14 06:48:02,077 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 443 transitions. Word has length 46 [2022-12-14 06:48:02,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:02,077 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 443 transitions. [2022-12-14 06:48:02,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:48:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 443 transitions. [2022-12-14 06:48:02,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 06:48:02,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:02,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:48:02,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 06:48:02,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:48:02,280 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:48:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711167, now seen corresponding path program 1 times [2022-12-14 06:48:02,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:02,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343189898] [2022-12-14 06:48:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:48:02,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:02,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343189898] [2022-12-14 06:48:02,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343189898] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:48:02,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84890585] [2022-12-14 06:48:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:02,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:48:02,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:48:02,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:48:02,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 06:48:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:02,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-14 06:48:02,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:48:02,838 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 [2022-12-14 06:48:02,997 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 06:48:02,997 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 [2022-12-14 06:48:03,012 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 [2022-12-14 06:48:03,064 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 [2022-12-14 06:48:03,071 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 [2022-12-14 06:48:03,226 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:48:03,226 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 [2022-12-14 06:48:03,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-14 06:48:03,337 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:48:03,337 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 [2022-12-14 06:48:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:03,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 06:48:03,483 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:48:03,484 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 [2022-12-14 06:48:03,494 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 18 treesize of output 20 [2022-12-14 06:48:03,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:03,801 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 [2022-12-14 06:48:03,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:03,807 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 [2022-12-14 06:48:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:48:03,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:48:05,265 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:05,265 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 73 treesize of output 74 [2022-12-14 06:48:05,274 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:05,274 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 65 treesize of output 50 [2022-12-14 06:48:05,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:05,291 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 632 treesize of output 567 [2022-12-14 06:48:05,324 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:05,325 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 1168 treesize of output 1111 [2022-12-14 06:48:05,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1096 treesize of output 1048 [2022-12-14 06:48:05,352 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 1048 treesize of output 1000 [2022-12-14 06:48:05,362 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 1000 treesize of output 984 [2022-12-14 06:48:05,383 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:05,383 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 984 treesize of output 892 [2022-12-14 06:48:07,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:07,581 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 38 treesize of output 39 [2022-12-14 06:48:07,589 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:48:07,589 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 30 treesize of output 31 [2022-12-14 06:48:07,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:07,595 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 28 treesize of output 20 [2022-12-14 06:48:07,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:07,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:07,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:07,604 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 18 treesize of output 10 [2022-12-14 06:48:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:48:08,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84890585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:48:08,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [585621179] [2022-12-14 06:48:08,137 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 06:48:08,137 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:48:08,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:48:08,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:48:08,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:48:08,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,160 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 [2022-12-14 06:48:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 06:48:08,180 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 [2022-12-14 06:48:08,186 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 [2022-12-14 06:48:08,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,199 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 [2022-12-14 06:48:08,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,214 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 [2022-12-14 06:48:08,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:48:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,256 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 30 treesize of output 32 [2022-12-14 06:48:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,267 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 30 treesize of output 32 [2022-12-14 06:48:08,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:48:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,335 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 [2022-12-14 06:48:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,356 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 35 [2022-12-14 06:48:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,368 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 [2022-12-14 06:48:08,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,382 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-12-14 06:48:08,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,423 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 06:48:08,424 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-12-14 06:48:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-12-14 06:48:08,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,452 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 54 treesize of output 21 [2022-12-14 06:48:08,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,500 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 06:48:08,500 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 144 treesize of output 119 [2022-12-14 06:48:08,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,525 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 06:48:08,525 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 88 [2022-12-14 06:48:08,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,544 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 [2022-12-14 06:48:08,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:48:08,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,626 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-12-14 06:48:08,626 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 8 case distinctions, treesize of input 126 treesize of output 108 [2022-12-14 06:48:08,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,643 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 57 treesize of output 68 [2022-12-14 06:48:08,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,724 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 [2022-12-14 06:48:08,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,776 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-12-14 06:48:08,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 172 treesize of output 142 [2022-12-14 06:48:08,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,796 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 60 treesize of output 67 [2022-12-14 06:48:08,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,816 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 [2022-12-14 06:48:08,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:08,894 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-14 06:48:08,894 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 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-12-14 06:48:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,922 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-12-14 06:48:08,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-12-14 06:48:08,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,971 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 [2022-12-14 06:48:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,111 INFO L321 Elim1Store]: treesize reduction 220, result has 19.7 percent of original size [2022-12-14 06:48:09,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 297 treesize of output 196 [2022-12-14 06:48:09,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 97 [2022-12-14 06:48:09,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,421 INFO L321 Elim1Store]: treesize reduction 114, result has 13.0 percent of original size [2022-12-14 06:48:09,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 566 treesize of output 487 [2022-12-14 06:48:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,447 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 572 treesize of output 551 [2022-12-14 06:48:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,528 INFO L321 Elim1Store]: treesize reduction 162, result has 11.5 percent of original size [2022-12-14 06:48:09,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 566 treesize of output 569 [2022-12-14 06:48:09,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,880 INFO L321 Elim1Store]: treesize reduction 246, result has 12.1 percent of original size [2022-12-14 06:48:09,880 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 566 treesize of output 571 [2022-12-14 06:48:09,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:09,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:09,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,054 INFO L321 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2022-12-14 06:48:10,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 44 case distinctions, treesize of input 641 treesize of output 542 [2022-12-14 06:48:10,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,137 INFO L321 Elim1Store]: treesize reduction 180, result has 9.5 percent of original size [2022-12-14 06:48:10,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 649 treesize of output 648 [2022-12-14 06:48:10,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,180 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 06:48:10,181 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 636 treesize of output 619 [2022-12-14 06:48:10,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,402 INFO L321 Elim1Store]: treesize reduction 162, result has 16.1 percent of original size [2022-12-14 06:48:10,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 46 case distinctions, treesize of input 755 treesize of output 610 [2022-12-14 06:48:10,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,687 INFO L321 Elim1Store]: treesize reduction 530, result has 13.8 percent of original size [2022-12-14 06:48:10,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 721 treesize of output 702 [2022-12-14 06:48:10,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,710 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 648 treesize of output 607 [2022-12-14 06:48:10,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:10,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:10,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:11,876 INFO L321 Elim1Store]: treesize reduction 820, result has 16.9 percent of original size [2022-12-14 06:48:11,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 3 disjoint index pairs (out of 91 index pairs), introduced 19 new quantified variables, introduced 105 case distinctions, treesize of input 912 treesize of output 763 [2022-12-14 06:48:11,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:11,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:11,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:48:12,511 INFO L321 Elim1Store]: treesize reduction 956, result has 15.2 percent of original size [2022-12-14 06:48:12,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 4 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 87 case distinctions, treesize of input 921 treesize of output 926 [2022-12-14 06:48:12,583 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:48:12,584 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 830 treesize of output 813 [2022-12-14 06:48:50,153 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 [2022-12-14 06:48:50,159 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 [2022-12-14 06:48:50,167 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 19 treesize of output 1 [2022-12-14 06:48:50,213 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:48:50,213 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 [2022-12-14 06:48:50,251 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:48:50,251 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 [2022-12-14 06:48:50,262 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 [2022-12-14 06:48:50,270 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 [2022-12-14 06:48:50,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 06:48:50,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:48:50,310 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:48:50,310 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 155 treesize of output 112 [2022-12-14 06:48:50,318 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-12-14 06:48:50,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-12-14 06:48:50,596 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:48:50,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-12-14 06:48:50,896 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:48:50,897 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 19 case distinctions, treesize of input 181 treesize of output 223 [2022-12-14 06:48:51,113 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 [2022-12-14 06:48:51,137 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 13 treesize of output 9 [2022-12-14 06:48:51,141 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 [2022-12-14 06:48:51,147 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 [2022-12-14 06:48:51,311 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 [2022-12-14 06:48:51,318 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 [2022-12-14 06:48:51,328 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 [2022-12-14 06:48:51,333 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 [2022-12-14 06:48:51,339 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 [2022-12-14 06:48:51,375 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:48:51,375 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 138 treesize of output 96 [2022-12-14 06:48:51,415 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 06:48:51,415 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 104 treesize of output 94 [2022-12-14 06:48:51,423 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 27 treesize of output 1 [2022-12-14 06:48:51,456 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:48:56,214 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21790#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~len~0#1| 0) (or (not (<= 0 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (not (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)))) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 06:48:56,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:48:56,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:48:56,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 29 [2022-12-14 06:48:56,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368030590] [2022-12-14 06:48:56,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:48:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 06:48:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 06:48:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=2920, Unknown=16, NotChecked=0, Total=3192 [2022-12-14 06:48:56,217 INFO L87 Difference]: Start difference. First operand 374 states and 443 transitions. Second operand has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:02,129 INFO L93 Difference]: Finished difference Result 564 states and 639 transitions. [2022-12-14 06:49:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 06:49:02,130 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 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 46 [2022-12-14 06:49:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:02,131 INFO L225 Difference]: With dead ends: 564 [2022-12-14 06:49:02,131 INFO L226 Difference]: Without dead ends: 564 [2022-12-14 06:49:02,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1718 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=506, Invalid=5178, Unknown=16, NotChecked=0, Total=5700 [2022-12-14 06:49:02,132 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 1501 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:02,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 990 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 06:49:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-12-14 06:49:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 417. [2022-12-14 06:49:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 392 states have (on average 1.288265306122449) internal successors, (505), 416 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:02,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 505 transitions. [2022-12-14 06:49:02,137 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 505 transitions. Word has length 46 [2022-12-14 06:49:02,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:02,137 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 505 transitions. [2022-12-14 06:49:02,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:02,137 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 505 transitions. [2022-12-14 06:49:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 06:49:02,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:02,138 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, 1, 1, 1] [2022-12-14 06:49:02,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 06:49:02,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-12-14 06:49:02,339 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:49:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:02,341 INFO L85 PathProgramCache]: Analyzing trace with hash -157749319, now seen corresponding path program 1 times [2022-12-14 06:49:02,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:02,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580363514] [2022-12-14 06:49:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:02,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:03,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:03,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580363514] [2022-12-14 06:49:03,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580363514] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:49:03,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908483986] [2022-12-14 06:49:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:03,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:49:03,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:03,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:49:03,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 06:49:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:03,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-14 06:49:03,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:49:03,243 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 [2022-12-14 06:49:03,295 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:49:03,296 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 [2022-12-14 06:49:03,358 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 [2022-12-14 06:49:03,452 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:49:03,452 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 [2022-12-14 06:49:03,544 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:49:03,544 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 [2022-12-14 06:49:03,735 INFO L321 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-12-14 06:49:03,735 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 [2022-12-14 06:49:03,848 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:49:03,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-12-14 06:49:04,151 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:49:04,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 79 [2022-12-14 06:49:04,432 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:49:04,433 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 [2022-12-14 06:49:04,838 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:49:04,838 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 [2022-12-14 06:49:05,283 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 [2022-12-14 06:49:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:05,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:49:05,450 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1785) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-12-14 06:49:05,492 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$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_1785) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-12-14 06:49:05,504 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-12-14 06:49:05,517 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$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_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-12-14 06:49:05,531 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store (store |c_#memory_$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_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-12-14 06:49:05,546 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (store |c_#memory_$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| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-12-14 06:49:05,570 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (store |c_#memory_$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_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-12-14 06:49:05,624 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1779 (Array Int Int)) (|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1779))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |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_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-12-14 06:49:15,065 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:49:15,066 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 183 treesize of output 114 [2022-12-14 06:49:15,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:15,086 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 451 treesize of output 437 [2022-12-14 06:49:15,101 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 469 treesize of output 453 [2022-12-14 06:49:15,119 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 425 treesize of output 397 [2022-12-14 06:49:15,133 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 425 treesize of output 397 [2022-12-14 06:49:15,149 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 353 treesize of output 333 [2022-12-14 06:49:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-14 06:49:23,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908483986] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:49:23,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [966043047] [2022-12-14 06:49:23,258 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 06:49:23,258 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:49:23,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:49:23,259 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:49:23,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:23,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,302 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 [2022-12-14 06:49:23,330 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 [2022-12-14 06:49:23,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,352 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 [2022-12-14 06:49:23,372 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 [2022-12-14 06:49:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,406 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 [2022-12-14 06:49:23,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,430 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 [2022-12-14 06:49:23,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,455 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 [2022-12-14 06:49:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,550 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 [2022-12-14 06:49:23,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,594 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 30 treesize of output 32 [2022-12-14 06:49:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 06:49:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,654 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 [2022-12-14 06:49:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,774 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:49:23,774 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-12-14 06:49:23,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-12-14 06:49:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,843 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 [2022-12-14 06:49:23,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:23,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:23,974 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:49:23,975 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 4 case distinctions, treesize of input 243 treesize of output 164 [2022-12-14 06:49:24,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,077 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-12-14 06:49:24,078 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 134 [2022-12-14 06:49:24,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-12-14 06:49:24,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,301 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 59 treesize of output 60 [2022-12-14 06:49:24,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,423 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-12-14 06:49:24,423 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 8 case distinctions, treesize of input 211 treesize of output 152 [2022-12-14 06:49:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,480 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:49:24,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 100 [2022-12-14 06:49:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,519 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 [2022-12-14 06:49:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,655 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-12-14 06:49:24,655 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 7 new quantified variables, introduced 8 case distinctions, treesize of input 303 treesize of output 208 [2022-12-14 06:49:24,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 138 [2022-12-14 06:49:24,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,744 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 42 treesize of output 21 [2022-12-14 06:49:24,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:24,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:24,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,005 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:49:25,006 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 8 new quantified variables, introduced 14 case distinctions, treesize of input 239 treesize of output 167 [2022-12-14 06:49:25,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,068 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 81 treesize of output 91 [2022-12-14 06:49:25,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,109 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 [2022-12-14 06:49:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,360 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-12-14 06:49:25,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 248 treesize of output 179 [2022-12-14 06:49:25,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-12-14 06:49:25,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:49:25,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,683 INFO L217 Elim1Store]: Index analysis took 108 ms [2022-12-14 06:49:25,684 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 [2022-12-14 06:49:25,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:25,923 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-12-14 06:49:25,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 321 treesize of output 222 [2022-12-14 06:49:25,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 99 [2022-12-14 06:49:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,046 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 [2022-12-14 06:49:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:26,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:26,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:26,316 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-12-14 06:49:26,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 369 treesize of output 271 [2022-12-14 06:49:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 170 [2022-12-14 06:49:26,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,454 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 42 treesize of output 21 [2022-12-14 06:49:26,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,518 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 [2022-12-14 06:49:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:26,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:26,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,140 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-12-14 06:49:27,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 437 treesize of output 273 [2022-12-14 06:49:27,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 129 [2022-12-14 06:49:27,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,868 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-12-14 06:49:27,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 828 treesize of output 612 [2022-12-14 06:49:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:27,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:27,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:28,449 INFO L321 Elim1Store]: treesize reduction 226, result has 15.7 percent of original size [2022-12-14 06:49:28,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 820 treesize of output 806 [2022-12-14 06:49:28,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:28,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:28,499 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 818 treesize of output 797 [2022-12-14 06:49:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,408 INFO L321 Elim1Store]: treesize reduction 262, result has 12.1 percent of original size [2022-12-14 06:49:29,409 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 844 treesize of output 835 [2022-12-14 06:49:29,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:29,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:29,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:29,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:29,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:29,994 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-12-14 06:49:29,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 964 treesize of output 698 [2022-12-14 06:49:30,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:30,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:30,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:30,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,758 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-12-14 06:49:30,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 48 case distinctions, treesize of input 964 treesize of output 938 [2022-12-14 06:49:30,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:30,946 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 06:49:30,947 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 951 treesize of output 934 [2022-12-14 06:49:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,532 INFO L321 Elim1Store]: treesize reduction 170, result has 12.4 percent of original size [2022-12-14 06:49:31,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 55 case distinctions, treesize of input 1070 treesize of output 750 [2022-12-14 06:49:31,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,591 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 963 treesize of output 922 [2022-12-14 06:49:31,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:31,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:31,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:33,098 INFO L321 Elim1Store]: treesize reduction 630, result has 14.6 percent of original size [2022-12-14 06:49:33,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 997 treesize of output 969 [2022-12-14 06:49:33,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:33,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:33,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:33,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:33,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:34,704 INFO L321 Elim1Store]: treesize reduction 692, result has 14.8 percent of original size [2022-12-14 06:49:34,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 1439 treesize of output 852 [2022-12-14 06:49:34,898 INFO L217 Elim1Store]: Index analysis took 156 ms [2022-12-14 06:49:34,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:34,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:34,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:49:37,516 INFO L321 Elim1Store]: treesize reduction 1120, result has 14.6 percent of original size [2022-12-14 06:49:37,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 81 case distinctions, treesize of input 1378 treesize of output 1295 [2022-12-14 06:49:37,928 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:49:37,928 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 1253 treesize of output 1236 [2022-12-14 06:49:39,437 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 [2022-12-14 06:49:39,449 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 13 treesize of output 9 [2022-12-14 06:49:39,462 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 [2022-12-14 06:49:39,598 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:49:39,598 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 [2022-12-14 06:49:39,748 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:49:39,748 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 [2022-12-14 06:49:39,772 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 [2022-12-14 06:49:39,791 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 [2022-12-14 06:49:39,812 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 [2022-12-14 06:49:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:49:39,924 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:49:39,924 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 155 treesize of output 112 [2022-12-14 06:49:39,944 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-12-14 06:49:39,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2022-12-14 06:49:40,013 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 [2022-12-14 06:49:41,711 INFO L321 Elim1Store]: treesize reduction 272, result has 41.8 percent of original size [2022-12-14 06:49:41,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 311 treesize of output 403 [2022-12-14 06:49:41,848 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-12-14 06:49:43,593 INFO L321 Elim1Store]: treesize reduction 220, result has 40.7 percent of original size [2022-12-14 06:49:43,593 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 8 new quantified variables, introduced 19 case distinctions, treesize of input 333 treesize of output 401 [2022-12-14 06:50:16,047 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 [2022-12-14 06:50:16,061 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 [2022-12-14 06:50:16,075 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 [2022-12-14 06:50:16,215 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 [2022-12-14 06:50:16,228 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 [2022-12-14 06:50:16,250 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 [2022-12-14 06:50:16,265 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 [2022-12-14 06:50:16,281 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 [2022-12-14 06:50:16,398 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:50:16,398 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 138 treesize of output 96 [2022-12-14 06:50:16,576 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 06:50:16,576 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 104 treesize of output 94 [2022-12-14 06:50:16,594 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 27 treesize of output 1 [2022-12-14 06:50:16,628 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:50:37,904 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23153#(and (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (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|) (= |#NULL.base| 0))' at error location [2022-12-14 06:50:37,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:50:37,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:50:37,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 16] total 39 [2022-12-14 06:50:37,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588328427] [2022-12-14 06:50:37,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:50:37,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-14 06:50:37,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:37,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-14 06:50:37,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=3359, Unknown=16, NotChecked=1016, Total=4830 [2022-12-14 06:50:37,907 INFO L87 Difference]: Start difference. First operand 417 states and 505 transitions. Second operand has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:42,548 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (= (select |c_#valid| .cse0) 1) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse2 |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_1783))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) 1)) (= (select |c_#valid| |c_ULTIMATE.start_main_#t~malloc10#1.base|) 1) (= (select |c_#valid| (select .cse2 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8))) 1) (not (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) (not (= |c_ULTIMATE.start_main_#t~malloc10#1.base| .cse0)) (not (= |c_ULTIMATE.start_main_~end~0#1.offset| .cse3)) (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse0)) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~end~0#1.base|)))) is different from false [2022-12-14 06:50:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:57,859 INFO L93 Difference]: Finished difference Result 580 states and 675 transitions. [2022-12-14 06:50:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 06:50:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 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 47 [2022-12-14 06:50:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:57,861 INFO L225 Difference]: With dead ends: 580 [2022-12-14 06:50:57,861 INFO L226 Difference]: Without dead ends: 580 [2022-12-14 06:50:57,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 87 SyntacticMatches, 7 SemanticMatches, 82 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=656, Invalid=4913, Unknown=17, NotChecked=1386, Total=6972 [2022-12-14 06:50:57,863 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 838 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 34 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 4516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 2225 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:57,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1513 Invalid, 4516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2255 Invalid, 2 Unknown, 2225 Unchecked, 13.1s Time] [2022-12-14 06:50:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-12-14 06:50:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 487. [2022-12-14 06:50:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 462 states have (on average 1.326839826839827) internal successors, (613), 486 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 613 transitions. [2022-12-14 06:50:57,868 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 613 transitions. Word has length 47 [2022-12-14 06:50:57,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:57,868 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 613 transitions. [2022-12-14 06:50:57,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 613 transitions. [2022-12-14 06:50:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 06:50:57,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:57,869 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, 1, 1, 1] [2022-12-14 06:50:57,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 06:50:58,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:50:58,070 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:50:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:58,072 INFO L85 PathProgramCache]: Analyzing trace with hash -157749318, now seen corresponding path program 1 times [2022-12-14 06:50:58,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:58,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593179076] [2022-12-14 06:50:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:02,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:02,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593179076] [2022-12-14 06:51:02,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593179076] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:51:02,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703500946] [2022-12-14 06:51:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:02,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:51:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:51:02,080 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:51:02,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 06:51:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:02,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:51:02,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:51:02,222 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 [2022-12-14 06:51:02,618 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:51:02,619 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 [2022-12-14 06:51:02,672 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 [2022-12-14 06:51:02,941 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 [2022-12-14 06:51:02,976 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 [2022-12-14 06:51:03,642 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:51:03,643 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 [2022-12-14 06:51:03,672 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 [2022-12-14 06:51:04,141 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:51:04,141 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 [2022-12-14 06:51:04,188 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 [2022-12-14 06:51:05,104 INFO L321 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-12-14 06:51:05,105 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 18 treesize of output 30 [2022-12-14 06:51:05,259 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-12-14 06:51:05,260 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 [2022-12-14 06:51:05,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:05,643 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 [2022-12-14 06:51:05,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:05,715 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 [2022-12-14 06:51:06,590 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:51:06,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 06:51:06,658 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-12-14 06:51:07,324 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:51:07,325 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 [2022-12-14 06:51:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:07,370 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 [2022-12-14 06:51:08,197 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:51:08,197 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 [2022-12-14 06:51:08,234 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 [2022-12-14 06:51:09,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:09,926 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 [2022-12-14 06:51:09,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:51:09,957 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 [2022-12-14 06:51:10,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:10,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:51:10,951 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))))) is different from false [2022-12-14 06:51:11,172 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))) (forall ((v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2022-12-14 06:51:11,221 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1923))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1922) .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1922) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1923) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))))) is different from false [2022-12-14 06:51:11,269 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1923))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1922) .cse1 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))) (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1922) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1923) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))) is different from false [2022-12-14 06:51:38,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:51:38,794 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 180 treesize of output 171 [2022-12-14 06:51:38,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:51:38,819 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 160 treesize of output 111 [2022-12-14 06:51:38,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:38,835 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 524 treesize of output 446 [2022-12-14 06:51:38,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:38,854 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 1032 treesize of output 1006 [2022-12-14 06:51:38,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:38,890 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 858 [2022-12-14 06:51:38,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:38,908 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 834 treesize of output 802 [2022-12-14 06:51:38,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:38,925 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 774 treesize of output 722 [2022-12-14 06:51:38,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 606 [2022-12-14 06:51:39,080 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:51:39,080 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 360 treesize of output 351 [2022-12-14 06:51:39,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:51:39,106 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 340 treesize of output 211 [2022-12-14 06:51:39,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,128 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 2210 treesize of output 2124 [2022-12-14 06:51:39,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,172 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 7102 treesize of output 7004 [2022-12-14 06:51:39,206 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 6996 treesize of output 6612 [2022-12-14 06:51:39,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,240 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 6468 treesize of output 6276 [2022-12-14 06:51:39,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,275 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 5988 treesize of output 5604 [2022-12-14 06:51:39,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,310 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 5468 treesize of output 5272 [2022-12-14 06:51:39,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,361 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 5124 treesize of output 4932 [2022-12-14 06:51:39,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,394 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 4868 treesize of output 4360 [2022-12-14 06:51:39,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:51:39,451 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 4230 treesize of output 3854 [2022-12-14 06:52:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:26,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703500946] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:52:26,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1113140077] [2022-12-14 06:52:26,191 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 06:52:26,191 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:52:26,191 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:52:26,192 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:52:26,192 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:52:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,233 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 [2022-12-14 06:52:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,266 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 30 treesize of output 21 [2022-12-14 06:52:26,282 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 [2022-12-14 06:52:26,297 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 [2022-12-14 06:52:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,329 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 [2022-12-14 06:52:26,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,351 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 [2022-12-14 06:52:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,375 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 [2022-12-14 06:52:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,460 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 [2022-12-14 06:52:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,504 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 30 treesize of output 32 [2022-12-14 06:52:26,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 06:52:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 06:52:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,679 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:52:26,679 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-12-14 06:52:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-12-14 06:52:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,747 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 [2022-12-14 06:52:26,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:26,868 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:52:26,869 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 4 case distinctions, treesize of input 255 treesize of output 176 [2022-12-14 06:52:26,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,959 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-12-14 06:52:26,959 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 6 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 150 [2022-12-14 06:52:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:26,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-12-14 06:52:27,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,148 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 [2022-12-14 06:52:27,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,197 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 [2022-12-14 06:52:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,302 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-12-14 06:52:27,303 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 8 case distinctions, treesize of input 176 treesize of output 123 [2022-12-14 06:52:27,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 67 [2022-12-14 06:52:27,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,497 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-12-14 06:52:27,498 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 7 new quantified variables, introduced 8 case distinctions, treesize of input 303 treesize of output 208 [2022-12-14 06:52:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 138 [2022-12-14 06:52:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-12-14 06:52:27,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:27,823 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:52:27,824 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 8 new quantified variables, introduced 14 case distinctions, treesize of input 266 treesize of output 190 [2022-12-14 06:52:27,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,940 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 06:52:27,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 120 [2022-12-14 06:52:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:27,979 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 [2022-12-14 06:52:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,212 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-12-14 06:52:28,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 248 treesize of output 179 [2022-12-14 06:52:28,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-12-14 06:52:28,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,326 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 [2022-12-14 06:52:28,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,526 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-12-14 06:52:28,527 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 [2022-12-14 06:52:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,578 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 [2022-12-14 06:52:28,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,784 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-12-14 06:52:28,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 332 treesize of output 229 [2022-12-14 06:52:28,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 99 [2022-12-14 06:52:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:28,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:28,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:29,132 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-12-14 06:52:29,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 369 treesize of output 271 [2022-12-14 06:52:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 170 [2022-12-14 06:52:29,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,272 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 42 treesize of output 21 [2022-12-14 06:52:29,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:29,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:29,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:29,970 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-12-14 06:52:29,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 437 treesize of output 273 [2022-12-14 06:52:30,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 137 [2022-12-14 06:52:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,111 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 [2022-12-14 06:52:30,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,690 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-12-14 06:52:30,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 48 case distinctions, treesize of input 890 treesize of output 613 [2022-12-14 06:52:30,831 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-12-14 06:52:30,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:30,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:30,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:31,300 INFO L321 Elim1Store]: treesize reduction 242, result has 14.8 percent of original size [2022-12-14 06:52:31,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 882 treesize of output 868 [2022-12-14 06:52:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:31,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:31,351 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 880 treesize of output 859 [2022-12-14 06:52:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,477 INFO L321 Elim1Store]: treesize reduction 406, result has 10.8 percent of original size [2022-12-14 06:52:33,477 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 3125 treesize of output 2989 [2022-12-14 06:52:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:33,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:33,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:33,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:33,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:33,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:34,538 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-12-14 06:52:34,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 57 case distinctions, treesize of input 3675 treesize of output 2208 [2022-12-14 06:52:34,715 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-12-14 06:52:34,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:34,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:34,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:34,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:34,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:34,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:34,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:34,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:35,488 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-12-14 06:52:35,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 50 case distinctions, treesize of input 3351 treesize of output 3041 [2022-12-14 06:52:35,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:35,696 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 06:52:35,696 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 3318 treesize of output 3261 [2022-12-14 06:52:36,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,579 INFO L321 Elim1Store]: treesize reduction 166, result has 14.4 percent of original size [2022-12-14 06:52:36,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 57 case distinctions, treesize of input 1586 treesize of output 1021 [2022-12-14 06:52:36,788 INFO L217 Elim1Store]: Index analysis took 165 ms [2022-12-14 06:52:36,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:36,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:36,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:38,380 INFO L321 Elim1Store]: treesize reduction 654, result has 16.8 percent of original size [2022-12-14 06:52:38,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 58 case distinctions, treesize of input 1540 treesize of output 1476 [2022-12-14 06:52:38,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:38,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:38,440 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 1455 treesize of output 1406 [2022-12-14 06:52:39,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:39,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:39,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:39,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:39,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:41,212 INFO L321 Elim1Store]: treesize reduction 696, result has 14.3 percent of original size [2022-12-14 06:52:41,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 2295 treesize of output 1218 [2022-12-14 06:52:41,406 INFO L217 Elim1Store]: Index analysis took 151 ms [2022-12-14 06:52:41,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:41,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:41,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:52:44,347 INFO L321 Elim1Store]: treesize reduction 1132, result has 13.7 percent of original size [2022-12-14 06:52:44,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 81 case distinctions, treesize of input 2062 treesize of output 1849 [2022-12-14 06:52:44,793 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-12-14 06:52:44,794 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 1875 treesize of output 1850 [2022-12-14 06:52:49,043 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 [2022-12-14 06:52:49,058 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 [2022-12-14 06:52:49,077 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 [2022-12-14 06:52:49,210 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:52:49,211 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 [2022-12-14 06:52:49,365 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:52:49,365 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 [2022-12-14 06:52:49,390 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 [2022-12-14 06:52:49,407 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 [2022-12-14 06:52:49,427 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 [2022-12-14 06:52:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:52:49,548 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:52:49,548 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 155 treesize of output 112 [2022-12-14 06:52:49,568 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-12-14 06:52:49,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-12-14 06:52:50,628 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:52:50,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-12-14 06:52:50,765 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-12-14 06:52:51,874 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-12-14 06:52:51,874 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 19 case distinctions, treesize of input 181 treesize of output 223 [2022-12-14 06:52:52,148 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 [2022-12-14 06:52:52,217 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 06:52:52,233 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 [2022-12-14 06:52:52,251 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 [2022-12-14 06:52:52,412 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 [2022-12-14 06:52:52,427 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 [2022-12-14 06:52:52,451 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 [2022-12-14 06:52:52,466 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 [2022-12-14 06:52:52,482 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 [2022-12-14 06:52:52,600 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 06:52:52,600 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 138 treesize of output 96 [2022-12-14 06:52:52,799 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 06:52:52,799 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 104 treesize of output 94 [2022-12-14 06:52:52,821 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 27 treesize of output 1 [2022-12-14 06:52:52,872 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:53:17,440 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24604#(and (or (not (<= 0 (+ |ULTIMATE.start_main_~inner~0#1.offset| 8))) (not (<= (+ |ULTIMATE.start_main_~inner~0#1.offset| 12) (select |#length| |ULTIMATE.start_main_~inner~0#1.base|)))) (<= 0 |#NULL.base|) (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |#NULL.base| 0) (= |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) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 06:53:17,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:53:17,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:53:17,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 44 [2022-12-14 06:53:17,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894677181] [2022-12-14 06:53:17,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 06:53:17,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-14 06:53:17,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:17,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-14 06:53:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=4422, Unknown=44, NotChecked=564, Total=5550 [2022-12-14 06:53:17,444 INFO L87 Difference]: Start difference. First operand 487 states and 613 transitions. Second operand has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:44,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-14 06:53:46,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-14 06:53:46,934 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (forall ((v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 8))) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))) (forall ((v_ArrVal_1916 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_166| Int) (v_ArrVal_1915 (Array Int Int)) (v_ArrVal_1914 (Array Int Int)) (v_ArrVal_1913 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_166| |c_ULTIMATE.start_main_~list~0#1.offset|)) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_40| Int)) (or (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1917 Int) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1913))) (let ((.cse3 (select (select .cse7 |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (let ((.cse5 (store (let ((.cse6 (store .cse7 .cse3 v_ArrVal_1915))) (store .cse6 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166| |v_ULTIMATE.start_main_#t~malloc10#1.base_40|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_40| v_ArrVal_1923))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166|))) (<= (+ (select (select (store (store (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1914) .cse3 v_ArrVal_1916))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166| 0))) |v_ULTIMATE.start_main_#t~malloc10#1.base_40| v_ArrVal_1922) .cse4 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 12) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc10#1.base_40| v_ArrVal_1917) (select (select (store .cse5 .cse4 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_40|) 0)))))) (forall ((v_ArrVal_1916 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_166| Int) (v_ArrVal_1915 (Array Int Int)) (v_ArrVal_1914 (Array Int Int)) (v_ArrVal_1913 (Array Int Int))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_40| Int)) (or (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse11 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1913))) (let ((.cse9 (select (select .cse11 |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (store (store (let ((.cse8 (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1914) .cse9 v_ArrVal_1916))) (store .cse8 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166| 0))) |v_ULTIMATE.start_main_#t~malloc10#1.base_40| v_ArrVal_1922) (select (select (store (let ((.cse10 (store .cse11 .cse9 v_ArrVal_1915))) (store .cse10 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166| |v_ULTIMATE.start_main_#t~malloc10#1.base_40|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_40| v_ArrVal_1923) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_166|) v_ArrVal_1927))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 8))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_40|) 0)))) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_166| |c_ULTIMATE.start_main_~list~0#1.offset|))))))) is different from false [2022-12-14 06:54:17,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:17,223 INFO L93 Difference]: Finished difference Result 958 states and 1125 transitions. [2022-12-14 06:54:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-14 06:54:17,224 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 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 47 [2022-12-14 06:54:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:17,226 INFO L225 Difference]: With dead ends: 958 [2022-12-14 06:54:17,226 INFO L226 Difference]: Without dead ends: 958 [2022-12-14 06:54:17,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 120 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 5091 ImplicationChecksByTransitivity, 101.6s TimeCoverageRelationStatistics Valid=1440, Invalid=12059, Unknown=93, NotChecked=1170, Total=14762 [2022-12-14 06:54:17,228 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1712 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 108 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 1278 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:17,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1816 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2586 Invalid, 19 Unknown, 1278 Unchecked, 23.8s Time] [2022-12-14 06:54:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-12-14 06:54:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 503. [2022-12-14 06:54:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 479 states have (on average 1.3068893528183716) internal successors, (626), 502 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 626 transitions. [2022-12-14 06:54:17,235 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 626 transitions. Word has length 47 [2022-12-14 06:54:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:17,235 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 626 transitions. [2022-12-14 06:54:17,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 626 transitions. [2022-12-14 06:54:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 06:54:17,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:17,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:17,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 06:54:17,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-12-14 06:54:17,438 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:54:17,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash 149362287, now seen corresponding path program 1 times [2022-12-14 06:54:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:17,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254352966] [2022-12-14 06:54:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:17,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:54:18,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:18,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254352966] [2022-12-14 06:54:18,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254352966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:18,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:18,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:54:18,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824879098] [2022-12-14 06:54:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:18,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 06:54:18,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:18,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 06:54:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:54:18,923 INFO L87 Difference]: Start difference. First operand 503 states and 626 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:23,924 INFO L93 Difference]: Finished difference Result 536 states and 650 transitions. [2022-12-14 06:54:23,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 06:54:23,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-12-14 06:54:23,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:23,927 INFO L225 Difference]: With dead ends: 536 [2022-12-14 06:54:23,927 INFO L226 Difference]: Without dead ends: 536 [2022-12-14 06:54:23,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:54:23,928 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 244 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:23,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 509 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 06:54:23,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-12-14 06:54:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 503. [2022-12-14 06:54:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 479 states have (on average 1.3048016701461378) internal successors, (625), 502 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:23,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 625 transitions. [2022-12-14 06:54:23,934 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 625 transitions. Word has length 47 [2022-12-14 06:54:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:23,934 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 625 transitions. [2022-12-14 06:54:23,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:23,934 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 625 transitions. [2022-12-14 06:54:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 06:54:23,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:23,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:54:23,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 06:54:23,935 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:54:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash -158598594, now seen corresponding path program 1 times [2022-12-14 06:54:23,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:23,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885235048] [2022-12-14 06:54:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:23,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:54:24,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:24,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885235048] [2022-12-14 06:54:24,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885235048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:24,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:24,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:54:24,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953430699] [2022-12-14 06:54:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:24,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:54:24,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:54:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:54:24,243 INFO L87 Difference]: Start difference. First operand 503 states and 625 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:25,887 INFO L93 Difference]: Finished difference Result 510 states and 630 transitions. [2022-12-14 06:54:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:54:25,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-12-14 06:54:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:25,889 INFO L225 Difference]: With dead ends: 510 [2022-12-14 06:54:25,889 INFO L226 Difference]: Without dead ends: 510 [2022-12-14 06:54:25,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:54:25,890 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 126 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:25,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 207 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:54:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-12-14 06:54:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 500. [2022-12-14 06:54:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 476 states have (on average 1.3046218487394958) internal successors, (621), 499 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 621 transitions. [2022-12-14 06:54:25,896 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 621 transitions. Word has length 48 [2022-12-14 06:54:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:25,896 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 621 transitions. [2022-12-14 06:54:25,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 621 transitions. [2022-12-14 06:54:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 06:54:25,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:25,897 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, 1, 1, 1, 1, 1] [2022-12-14 06:54:25,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 06:54:25,897 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-12-14 06:54:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1273232135, now seen corresponding path program 1 times [2022-12-14 06:54:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:25,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397003024] [2022-12-14 06:54:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:30,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:30,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397003024] [2022-12-14 06:54:30,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397003024] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:54:30,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176023467] [2022-12-14 06:54:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:30,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:54:30,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:54:30,677 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:54:30,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2a7c59-812e-4417-82f6-d43ab9036c9f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 06:54:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:30,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-14 06:54:30,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:54:30,835 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 [2022-12-14 06:54:31,266 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:54:31,267 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 [2022-12-14 06:54:31,573 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 [2022-12-14 06:54:31,614 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 [2022-12-14 06:54:32,362 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:54:32,363 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 46 treesize of output 45 [2022-12-14 06:54:32,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-12-14 06:54:32,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:54:32,958 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 06:54:32,958 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 84 treesize of output 56 [2022-12-14 06:54:32,974 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 62 treesize of output 46 [2022-12-14 06:54:34,576 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-12-14 06:54:34,577 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 [2022-12-14 06:54:34,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:35,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:54:35,010 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:54:35,011 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 58 treesize of output 45 [2022-12-14 06:54:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:35,060 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 34 treesize of output 36 [2022-12-14 06:54:36,160 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-12-14 06:54:36,160 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 76 [2022-12-14 06:54:36,217 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2022-12-14 06:54:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:36,982 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 36 treesize of output 39 [2022-12-14 06:54:37,118 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-12-14 06:54:37,119 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 72 treesize of output 68 [2022-12-14 06:54:38,210 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-12-14 06:54:38,210 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 76 [2022-12-14 06:54:38,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2022-12-14 06:54:40,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:41,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:54:41,046 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-12-14 06:54:41,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 85 treesize of output 45 [2022-12-14 06:54:41,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:54:41,124 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 06:54:41,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 21 [2022-12-14 06:54:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:41,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:54:42,325 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2138))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2137) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))) 0)) (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int))) (= (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2137))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2138) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8)) 0)))) is different from false [2022-12-14 06:54:42,584 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int))) (= 0 (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_2137))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_2138) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8)))) (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int))) (= (let ((.cse3 (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_2138))) (select (select .cse3 (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_2137) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ (select (select .cse3 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))) 0)))) is different from false [2022-12-14 06:54:42,644 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_2133))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_2137))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_2134) .cse3 v_ArrVal_2138) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8)))) 0)) (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_2133))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_2134) .cse6 v_ArrVal_2138))) (select (select .cse4 (select (select (store .cse5 .cse6 v_ArrVal_2137) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))))) 0)))) is different from false [2022-12-14 06:54:42,695 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_2133))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_2134) .cse2 v_ArrVal_2138))) (select (select .cse0 (select (select (store .cse1 .cse2 v_ArrVal_2137) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (+ (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 8))))) 0)) (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_2133))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (select (let ((.cse5 (store .cse6 .cse7 v_ArrVal_2137))) (select .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_2134) .cse7 v_ArrVal_2138) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 8)))) 0)))) is different from false [2022-12-14 06:54:42,790 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|))) (.cse5 (store |c_#memory_$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|)))) (and (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse2 (store .cse5 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_2133))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_2137))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_2134) .cse3 v_ArrVal_2138) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8)))) 0)) (forall ((v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2137 (Array Int Int)) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (= (let ((.cse7 (store .cse5 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_2133))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse6 (store (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_2134) .cse8 v_ArrVal_2138))) (select (select .cse6 (select (select (store .cse7 .cse8 v_ArrVal_2137) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ (select (select .cse6 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))))) 0)))) is different from false [2022-12-14 06:55:07,210 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:55:07,210 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 1224 treesize of output 1035 [2022-12-14 06:55:07,244 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:55:07,245 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 1024 treesize of output 635 [2022-12-14 06:55:07,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:55:07,436 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:55:07,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 5116 treesize of output 4870 [2022-12-14 06:55:07,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:55:07,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:55:07,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:55:07,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:55:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:55:10,059 INFO L321 Elim1Store]: treesize reduction 301, result has 50.7 percent of original size [2022-12-14 06:55:10,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 35 case distinctions, treesize of input 1014837 treesize of output 951143 [2022-12-14 06:55:13,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:55:13,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:55:15,436 INFO L321 Elim1Store]: treesize reduction 36, result has 85.5 percent of original size [2022-12-14 06:55:15,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 1060637 treesize of output 874082 [2022-12-14 06:55:50,163 WARN L233 SmtUtils]: Spent 34.72s on a formula simplification. DAG size of input: 4089 DAG size of output: 4064 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 06:55:52,733 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-12-14 06:55:53,552 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:55:53,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 773495 treesize of output 716739 [2022-12-14 06:55:56,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:55:56,254 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 773100 treesize of output 708232 [2022-12-14 06:56:13,992 WARN L233 SmtUtils]: Spent 17.73s on a formula simplification. DAG size of input: 4120 DAG size of output: 4117 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 06:57:44,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:44,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:44,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:44,104 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 115 treesize of output 111 [2022-12-14 06:57:44,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:44,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:44,449 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 06:57:44,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:44,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:51,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:51,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:52,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:52,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:52,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:57:52,518 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 64 treesize of output 56 [2022-12-14 06:57:53,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:57:53,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:00:21,155 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-14 07:00:24,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:00:24,195 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 22 treesize of output 14 [2022-12-14 07:00:24,242 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 8 treesize of output 4 [2022-12-14 07:00:24,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:00:24,276 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 1224 treesize of output 1075 [2022-12-14 07:00:24,307 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:00:24,307 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 1064 treesize of output 635 [2022-12-14 07:00:24,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:00:25,316 INFO L321 Elim1Store]: treesize reduction 346, result has 22.9 percent of original size [2022-12-14 07:00:25,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 28 case distinctions, treesize of input 1555464 treesize of output 1459233 [2022-12-14 07:00:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:00:27,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:00:27,642 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:00:27,646 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 7911968 treesize of output 7330206