./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 4e7fbc69 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:21:39,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:21:39,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:21:39,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:21:39,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:21:39,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:21:39,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:21:39,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:21:39,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:21:40,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:21:40,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:21:40,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:21:40,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:21:40,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:21:40,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:21:40,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:21:40,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:21:40,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:21:40,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:21:40,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:21:40,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:21:40,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:21:40,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:21:40,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:21:40,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:21:40,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:21:40,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:21:40,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:21:40,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:21:40,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:21:40,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:21:40,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:21:40,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:21:40,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:21:40,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:21:40,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:21:40,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:21:40,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:21:40,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:21:40,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:21:40,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:21:40,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 15:21:40,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:21:40,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:21:40,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:21:40,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:21:40,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:21:40,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:21:40,137 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:21:40,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:21:40,138 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:21:40,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:21:40,139 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:21:40,140 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:21:40,140 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:21:40,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:21:40,141 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:21:40,141 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:21:40,141 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:21:40,142 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:21:40,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:21:40,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:21:40,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:21:40,143 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:21:40,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:21:40,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:21:40,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:21:40,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:21:40,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:21:40,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:21:40,146 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:21:40,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:21:40,147 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:21:40,148 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:21:40,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:21:40,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:21:40,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:21:40,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:21:40,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:21:40,149 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:21:40,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:21:40,150 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:21:40,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:21:40,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:21:40,151 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2022-11-23 15:21:40,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:21:40,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:21:40,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:21:40,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:21:40,525 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:21:40,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2022-11-23 15:21:43,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:21:44,086 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:21:44,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i [2022-11-23 15:21:44,104 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/data/1720ae738/884d49b4a1ae49ca90bc0c079e924705/FLAGdb6c47551 [2022-11-23 15:21:44,121 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/data/1720ae738/884d49b4a1ae49ca90bc0c079e924705 [2022-11-23 15:21:44,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:21:44,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:21:44,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:21:44,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:21:44,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:21:44,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77db8393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44, skipping insertion in model container [2022-11-23 15:21:44,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:21:44,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:21:44,486 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-11-23 15:21:44,493 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-11-23 15:21:44,496 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-11-23 15:21:44,497 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-11-23 15:21:44,499 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-11-23 15:21:44,500 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-11-23 15:21:44,502 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-11-23 15:21:44,503 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-11-23 15:21:44,504 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-11-23 15:21:44,505 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-11-23 15:21:44,507 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-11-23 15:21:44,508 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-11-23 15:21:44,508 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-11-23 15:21:44,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:21:44,522 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:21:44,571 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-11-23 15:21:44,581 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-11-23 15:21:44,584 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-11-23 15:21:44,585 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-11-23 15:21:44,587 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-11-23 15:21:44,589 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-11-23 15:21:44,601 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-11-23 15:21:44,602 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-11-23 15:21:44,603 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-11-23 15:21:44,604 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-11-23 15:21:44,606 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-11-23 15:21:44,607 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-11-23 15:21:44,610 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_cd95bf7e-b219-453a-b0a5-c33d30d26f66/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-11-23 15:21:44,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:21:44,640 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:21:44,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44 WrapperNode [2022-11-23 15:21:44,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:21:44,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:21:44,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:21:44,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:21:44,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,696 INFO L138 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2022-11-23 15:21:44,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:21:44,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:21:44,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:21:44,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:21:44,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:21:44,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:21:44,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:21:44,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:21:44,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (1/1) ... [2022-11-23 15:21:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:21:44,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:44,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:21:44,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:21:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:21:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:21:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:21:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:21:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:21:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:21:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:21:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:21:44,997 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:21:45,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:21:45,841 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:21:45,948 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:21:45,948 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-23 15:21:45,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:45 BoogieIcfgContainer [2022-11-23 15:21:45,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:21:45,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:21:45,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:21:45,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:21:45,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:21:44" (1/3) ... [2022-11-23 15:21:45,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84ff84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:45, skipping insertion in model container [2022-11-23 15:21:45,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:44" (2/3) ... [2022-11-23 15:21:45,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84ff84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:45, skipping insertion in model container [2022-11-23 15:21:45,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:45" (3/3) ... [2022-11-23 15:21:45,970 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2022-11-23 15:21:45,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:21:46,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2022-11-23 15:21:46,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:21:46,104 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;@8854114, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:21:46,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-11-23 15:21:46,116 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) [2022-11-23 15:21:46,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-23 15:21:46,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:46,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-23 15:21:46,125 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)] === [2022-11-23 15:21:46,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash 15008, now seen corresponding path program 1 times [2022-11-23 15:21:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:46,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945267821] [2022-11-23 15:21:46,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:46,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:46,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945267821] [2022-11-23 15:21:46,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945267821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:46,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:46,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:21:46,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914021645] [2022-11-23 15:21:46,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:46,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:46,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:46,497 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) [2022-11-23 15:21:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:46,780 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2022-11-23 15:21:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-23 15:21:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:46,796 INFO L225 Difference]: With dead ends: 177 [2022-11-23 15:21:46,797 INFO L226 Difference]: Without dead ends: 175 [2022-11-23 15:21:46,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:46,803 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 169 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:46,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:46,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-23 15:21:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2022-11-23 15:21:46,861 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) [2022-11-23 15:21:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2022-11-23 15:21:46,867 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 2 [2022-11-23 15:21:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:46,868 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2022-11-23 15:21:46,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:21:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2022-11-23 15:21:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-23 15:21:46,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:46,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-23 15:21:46,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:21:46,870 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)] === [2022-11-23 15:21:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:46,889 INFO L85 PathProgramCache]: Analyzing trace with hash 15009, now seen corresponding path program 1 times [2022-11-23 15:21:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:46,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798572079] [2022-11-23 15:21:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:47,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:47,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798572079] [2022-11-23 15:21:47,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798572079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:47,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:47,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:21:47,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266959890] [2022-11-23 15:21:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:47,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:47,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:47,035 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) [2022-11-23 15:21:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:47,300 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2022-11-23 15:21:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-23 15:21:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:47,305 INFO L225 Difference]: With dead ends: 198 [2022-11-23 15:21:47,305 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 15:21:47,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:47,307 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 160 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:47,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 120 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:47,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 15:21:47,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2022-11-23 15:21:47,320 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) [2022-11-23 15:21:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 200 transitions. [2022-11-23 15:21:47,322 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 200 transitions. Word has length 2 [2022-11-23 15:21:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:47,322 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 200 transitions. [2022-11-23 15:21:47,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:21:47,323 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 200 transitions. [2022-11-23 15:21:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:21:47,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:47,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:21:47,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:21:47,324 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)] === [2022-11-23 15:21:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash 447079752, now seen corresponding path program 1 times [2022-11-23 15:21:47,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:47,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670500134] [2022-11-23 15:21:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:47,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:47,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:47,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670500134] [2022-11-23 15:21:47,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670500134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:47,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:47,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:21:47,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15721441] [2022-11-23 15:21:47,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:47,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:47,395 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) [2022-11-23 15:21:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:47,521 INFO L93 Difference]: Finished difference Result 194 states and 203 transitions. [2022-11-23 15:21:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:47,522 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 [2022-11-23 15:21:47,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:47,524 INFO L225 Difference]: With dead ends: 194 [2022-11-23 15:21:47,524 INFO L226 Difference]: Without dead ends: 194 [2022-11-23 15:21:47,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:47,526 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 157 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:47,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 160 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:21:47,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-23 15:21:47,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2022-11-23 15:21:47,538 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) [2022-11-23 15:21:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2022-11-23 15:21:47,541 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 5 [2022-11-23 15:21:47,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:47,541 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2022-11-23 15:21:47,542 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) [2022-11-23 15:21:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2022-11-23 15:21:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:21:47,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:47,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:47,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:21:47,544 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)] === [2022-11-23 15:21:47,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash -432269896, now seen corresponding path program 1 times [2022-11-23 15:21:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386456003] [2022-11-23 15:21:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:47,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:47,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386456003] [2022-11-23 15:21:47,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386456003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:47,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:47,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:21:47,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709741484] [2022-11-23 15:21:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:47,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:21:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:21:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:47,908 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) [2022-11-23 15:21:48,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:48,246 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2022-11-23 15:21:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:48,247 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 [2022-11-23 15:21:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:48,248 INFO L225 Difference]: With dead ends: 176 [2022-11-23 15:21:48,248 INFO L226 Difference]: Without dead ends: 176 [2022-11-23 15:21:48,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:48,250 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:48,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 425 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:21:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-23 15:21:48,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-11-23 15:21:48,262 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) [2022-11-23 15:21:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2022-11-23 15:21:48,264 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 10 [2022-11-23 15:21:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:48,265 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2022-11-23 15:21:48,266 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) [2022-11-23 15:21:48,266 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2022-11-23 15:21:48,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:21:48,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:48,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:48,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:21:48,268 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)] === [2022-11-23 15:21:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash -432269895, now seen corresponding path program 1 times [2022-11-23 15:21:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:48,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090353536] [2022-11-23 15:21:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:48,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090353536] [2022-11-23 15:21:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090353536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:48,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:48,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:21:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586044165] [2022-11-23 15:21:48,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:48,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:21:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:21:48,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:48,725 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) [2022-11-23 15:21:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:48,964 INFO L93 Difference]: Finished difference Result 175 states and 195 transitions. [2022-11-23 15:21:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:48,965 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 [2022-11-23 15:21:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:48,966 INFO L225 Difference]: With dead ends: 175 [2022-11-23 15:21:48,966 INFO L226 Difference]: Without dead ends: 175 [2022-11-23 15:21:48,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:48,967 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:48,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-23 15:21:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-23 15:21:48,975 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) [2022-11-23 15:21:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 195 transitions. [2022-11-23 15:21:48,977 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 195 transitions. Word has length 10 [2022-11-23 15:21:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:48,977 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 195 transitions. [2022-11-23 15:21:48,978 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) [2022-11-23 15:21:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 195 transitions. [2022-11-23 15:21:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:21:48,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:48,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:21:48,979 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)] === [2022-11-23 15:21:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863745, now seen corresponding path program 1 times [2022-11-23 15:21:48,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:48,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374581065] [2022-11-23 15:21:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:48,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:49,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:49,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374581065] [2022-11-23 15:21:49,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374581065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:49,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:49,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 15:21:49,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172777180] [2022-11-23 15:21:49,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:49,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:21:49,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:49,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:21:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:21:49,302 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) [2022-11-23 15:21:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:49,820 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-11-23 15:21:49,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:21:49,820 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 [2022-11-23 15:21:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:49,822 INFO L225 Difference]: With dead ends: 174 [2022-11-23 15:21:49,822 INFO L226 Difference]: Without dead ends: 174 [2022-11-23 15:21:49,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:21:49,823 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 151 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:49,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 530 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:21:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-23 15:21:49,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-23 15:21:49,830 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) [2022-11-23 15:21:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-11-23 15:21:49,831 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-11-23 15:21:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:49,831 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-11-23 15:21:49,831 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) [2022-11-23 15:21:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-11-23 15:21:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:21:49,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:49,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:49,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:21:49,833 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)] === [2022-11-23 15:21:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863746, now seen corresponding path program 1 times [2022-11-23 15:21:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:49,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588202826] [2022-11-23 15:21:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:49,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:50,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:50,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588202826] [2022-11-23 15:21:50,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588202826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:50,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:50,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 15:21:50,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79622261] [2022-11-23 15:21:50,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:50,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:21:50,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:50,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:21:50,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:21:50,299 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) [2022-11-23 15:21:50,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:50,995 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2022-11-23 15:21:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:21:50,996 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 [2022-11-23 15:21:50,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:50,998 INFO L225 Difference]: With dead ends: 173 [2022-11-23 15:21:50,998 INFO L226 Difference]: Without dead ends: 173 [2022-11-23 15:21:50,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:21:50,999 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 148 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:51,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 435 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:21:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-23 15:21:51,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-11-23 15:21:51,005 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) [2022-11-23 15:21:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-11-23 15:21:51,006 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 12 [2022-11-23 15:21:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:51,006 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-11-23 15:21:51,007 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) [2022-11-23 15:21:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-11-23 15:21:51,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:21:51,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:51,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:51,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:21:51,008 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)] === [2022-11-23 15:21:51,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:51,009 INFO L85 PathProgramCache]: Analyzing trace with hash 678271813, now seen corresponding path program 1 times [2022-11-23 15:21:51,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:51,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706922790] [2022-11-23 15:21:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:51,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:51,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:51,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706922790] [2022-11-23 15:21:51,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706922790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:51,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:51,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:51,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081350861] [2022-11-23 15:21:51,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:51,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:51,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:51,046 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) [2022-11-23 15:21:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:51,111 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-11-23 15:21:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:51,112 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 [2022-11-23 15:21:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:51,114 INFO L225 Difference]: With dead ends: 174 [2022-11-23 15:21:51,114 INFO L226 Difference]: Without dead ends: 174 [2022-11-23 15:21:51,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:51,118 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:51,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:21:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-23 15:21:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-23 15:21:51,124 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) [2022-11-23 15:21:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-11-23 15:21:51,127 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-11-23 15:21:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:51,128 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-11-23 15:21:51,129 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) [2022-11-23 15:21:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-11-23 15:21:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:21:51,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:51,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:51,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:21:51,132 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)] === [2022-11-23 15:21:51,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash -447972018, now seen corresponding path program 1 times [2022-11-23 15:21:51,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:51,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557791170] [2022-11-23 15:21:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:51,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:51,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557791170] [2022-11-23 15:21:51,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557791170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:51,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:51,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:21:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682004420] [2022-11-23 15:21:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:51,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:21:51,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:21:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:51,303 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) [2022-11-23 15:21:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:51,518 INFO L93 Difference]: Finished difference Result 258 states and 283 transitions. [2022-11-23 15:21:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:21:51,519 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 [2022-11-23 15:21:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:51,521 INFO L225 Difference]: With dead ends: 258 [2022-11-23 15:21:51,521 INFO L226 Difference]: Without dead ends: 258 [2022-11-23 15:21:51,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:51,522 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 171 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:51,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 355 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-23 15:21:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 171. [2022-11-23 15:21:51,529 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) [2022-11-23 15:21:51,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 191 transitions. [2022-11-23 15:21:51,530 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 191 transitions. Word has length 13 [2022-11-23 15:21:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:51,531 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 191 transitions. [2022-11-23 15:21:51,531 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) [2022-11-23 15:21:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 191 transitions. [2022-11-23 15:21:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:21:51,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:51,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:51,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:21:51,533 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)] === [2022-11-23 15:21:51,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1118637745, now seen corresponding path program 1 times [2022-11-23 15:21:51,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:51,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300130321] [2022-11-23 15:21:51,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:51,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:51,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:51,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300130321] [2022-11-23 15:21:51,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300130321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:51,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:51,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:21:51,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614857720] [2022-11-23 15:21:51,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:51,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:21:51,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:51,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:21:51,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:21:51,664 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) [2022-11-23 15:21:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:51,862 INFO L93 Difference]: Finished difference Result 258 states and 282 transitions. [2022-11-23 15:21:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:51,863 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 [2022-11-23 15:21:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:51,864 INFO L225 Difference]: With dead ends: 258 [2022-11-23 15:21:51,864 INFO L226 Difference]: Without dead ends: 258 [2022-11-23 15:21:51,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:51,865 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:51,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 358 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-23 15:21:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 173. [2022-11-23 15:21:51,871 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) [2022-11-23 15:21:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-11-23 15:21:51,872 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 16 [2022-11-23 15:21:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:51,873 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-11-23 15:21:51,877 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) [2022-11-23 15:21:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-11-23 15:21:51,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:21:51,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:51,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:51,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:21:51,879 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)] === [2022-11-23 15:21:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385624, now seen corresponding path program 1 times [2022-11-23 15:21:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760500982] [2022-11-23 15:21:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:51,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:51,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760500982] [2022-11-23 15:21:51,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760500982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:51,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:51,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:21:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261318847] [2022-11-23 15:21:52,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:52,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:21:52,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:21:52,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:21:52,002 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) [2022-11-23 15:21:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:52,230 INFO L93 Difference]: Finished difference Result 166 states and 185 transitions. [2022-11-23 15:21:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:21:52,230 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 [2022-11-23 15:21:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:52,232 INFO L225 Difference]: With dead ends: 166 [2022-11-23 15:21:52,232 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 15:21:52,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:52,235 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 225 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:52,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 84 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 15:21:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2022-11-23 15:21:52,240 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) [2022-11-23 15:21:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 183 transitions. [2022-11-23 15:21:52,242 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 183 transitions. Word has length 17 [2022-11-23 15:21:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:52,242 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 183 transitions. [2022-11-23 15:21:52,242 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) [2022-11-23 15:21:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 183 transitions. [2022-11-23 15:21:52,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:21:52,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:52,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:52,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:21:52,244 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)] === [2022-11-23 15:21:52,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385625, now seen corresponding path program 1 times [2022-11-23 15:21:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:52,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926003685] [2022-11-23 15:21:52,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:52,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:52,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:52,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926003685] [2022-11-23 15:21:52,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926003685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:52,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:52,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:21:52,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554747739] [2022-11-23 15:21:52,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:52,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:21:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:52,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:21:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:21:52,431 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) [2022-11-23 15:21:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:52,720 INFO L93 Difference]: Finished difference Result 216 states and 228 transitions. [2022-11-23 15:21:52,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:21:52,721 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 [2022-11-23 15:21:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:52,722 INFO L225 Difference]: With dead ends: 216 [2022-11-23 15:21:52,722 INFO L226 Difference]: Without dead ends: 216 [2022-11-23 15:21:52,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:52,723 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 209 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:52,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 154 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:21:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-23 15:21:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2022-11-23 15:21:52,727 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) [2022-11-23 15:21:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2022-11-23 15:21:52,728 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 17 [2022-11-23 15:21:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:52,728 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2022-11-23 15:21:52,728 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) [2022-11-23 15:21:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2022-11-23 15:21:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:21:52,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:52,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:52,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:21:52,730 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)] === [2022-11-23 15:21:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash -282688741, now seen corresponding path program 1 times [2022-11-23 15:21:52,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445694352] [2022-11-23 15:21:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:52,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445694352] [2022-11-23 15:21:52,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445694352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:52,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:52,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:21:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752917307] [2022-11-23 15:21:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:52,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:21:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:21:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:52,831 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) [2022-11-23 15:21:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:53,078 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2022-11-23 15:21:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:53,079 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 [2022-11-23 15:21:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:53,080 INFO L225 Difference]: With dead ends: 181 [2022-11-23 15:21:53,080 INFO L226 Difference]: Without dead ends: 181 [2022-11-23 15:21:53,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:53,082 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 6 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:53,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 368 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-23 15:21:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-23 15:21:53,087 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) [2022-11-23 15:21:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2022-11-23 15:21:53,088 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 19 [2022-11-23 15:21:53,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:53,088 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2022-11-23 15:21:53,088 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) [2022-11-23 15:21:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2022-11-23 15:21:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:21:53,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:53,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:53,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:21:53,090 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)] === [2022-11-23 15:21:53,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -282688740, now seen corresponding path program 1 times [2022-11-23 15:21:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:53,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646922481] [2022-11-23 15:21:53,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:53,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:53,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646922481] [2022-11-23 15:21:53,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646922481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:53,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:53,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:21:53,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518525941] [2022-11-23 15:21:53,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:53,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:21:53,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:53,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:21:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:53,344 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) [2022-11-23 15:21:53,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:53,612 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2022-11-23 15:21:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:53,612 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 [2022-11-23 15:21:53,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:53,613 INFO L225 Difference]: With dead ends: 180 [2022-11-23 15:21:53,614 INFO L226 Difference]: Without dead ends: 180 [2022-11-23 15:21:53,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:53,615 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 3 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-11-23 15:21:53,615 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] [2022-11-23 15:21:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-23 15:21:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-23 15:21:53,619 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) [2022-11-23 15:21:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 211 transitions. [2022-11-23 15:21:53,621 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 211 transitions. Word has length 19 [2022-11-23 15:21:53,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:53,621 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 211 transitions. [2022-11-23 15:21:53,621 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) [2022-11-23 15:21:53,621 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 211 transitions. [2022-11-23 15:21:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:21:53,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:53,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:53,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 15:21:53,623 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)] === [2022-11-23 15:21:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash -282972339, now seen corresponding path program 1 times [2022-11-23 15:21:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:53,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881934679] [2022-11-23 15:21:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:53,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:53,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881934679] [2022-11-23 15:21:53,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881934679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:53,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:53,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:53,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414834630] [2022-11-23 15:21:53,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:53,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:21:53,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:21:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:21:53,676 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) [2022-11-23 15:21:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:53,870 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-11-23 15:21:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:21:53,871 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 [2022-11-23 15:21:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:53,872 INFO L225 Difference]: With dead ends: 208 [2022-11-23 15:21:53,872 INFO L226 Difference]: Without dead ends: 208 [2022-11-23 15:21:53,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:21:53,873 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:53,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 204 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:21:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-23 15:21:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2022-11-23 15:21:53,878 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) [2022-11-23 15:21:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2022-11-23 15:21:53,880 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 19 [2022-11-23 15:21:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:53,880 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2022-11-23 15:21:53,880 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) [2022-11-23 15:21:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2022-11-23 15:21:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:21:53,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:53,882 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] [2022-11-23 15:21:53,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:21:53,882 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)] === [2022-11-23 15:21:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590815, now seen corresponding path program 1 times [2022-11-23 15:21:53,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:53,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777475580] [2022-11-23 15:21:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:54,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:54,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777475580] [2022-11-23 15:21:54,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777475580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:54,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:54,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 15:21:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843238627] [2022-11-23 15:21:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:54,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:21:54,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:21:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:21:54,189 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) [2022-11-23 15:21:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:54,624 INFO L93 Difference]: Finished difference Result 177 states and 207 transitions. [2022-11-23 15:21:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:21:54,625 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 [2022-11-23 15:21:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:54,626 INFO L225 Difference]: With dead ends: 177 [2022-11-23 15:21:54,626 INFO L226 Difference]: Without dead ends: 177 [2022-11-23 15:21:54,626 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 [2022-11-23 15:21:54,627 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 218 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:54,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 255 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:21:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-23 15:21:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-23 15:21:54,632 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) [2022-11-23 15:21:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 207 transitions. [2022-11-23 15:21:54,633 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 207 transitions. Word has length 21 [2022-11-23 15:21:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:54,633 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 207 transitions. [2022-11-23 15:21:54,633 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) [2022-11-23 15:21:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 207 transitions. [2022-11-23 15:21:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:21:54,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:54,634 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] [2022-11-23 15:21:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 15:21:54,635 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)] === [2022-11-23 15:21:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590814, now seen corresponding path program 1 times [2022-11-23 15:21:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571826754] [2022-11-23 15:21:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:54,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:55,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:55,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571826754] [2022-11-23 15:21:55,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571826754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:55,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:55,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:21:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113306619] [2022-11-23 15:21:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:55,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:21:55,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:21:55,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:21:55,157 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) [2022-11-23 15:21:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:55,759 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2022-11-23 15:21:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:21:55,760 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 [2022-11-23 15:21:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:55,761 INFO L225 Difference]: With dead ends: 168 [2022-11-23 15:21:55,761 INFO L226 Difference]: Without dead ends: 168 [2022-11-23 15:21:55,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:21:55,762 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 226 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:55,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 290 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:21:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-23 15:21:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2022-11-23 15:21:55,765 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) [2022-11-23 15:21:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2022-11-23 15:21:55,766 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 21 [2022-11-23 15:21:55,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:55,766 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2022-11-23 15:21:55,766 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) [2022-11-23 15:21:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2022-11-23 15:21:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:21:55,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:55,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:55,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 15:21:55,767 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)] === [2022-11-23 15:21:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash 934315297, now seen corresponding path program 1 times [2022-11-23 15:21:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:55,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420886959] [2022-11-23 15:21:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:55,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:55,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420886959] [2022-11-23 15:21:55,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420886959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:55,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:55,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:21:55,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097042451] [2022-11-23 15:21:55,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:55,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:21:55,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:21:55,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:21:55,983 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) [2022-11-23 15:21:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:56,380 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2022-11-23 15:21:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:21:56,381 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 [2022-11-23 15:21:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:56,382 INFO L225 Difference]: With dead ends: 164 [2022-11-23 15:21:56,382 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 15:21:56,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:21:56,383 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 215 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:56,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 254 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:21:56,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 15:21:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2022-11-23 15:21:56,387 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) [2022-11-23 15:21:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2022-11-23 15:21:56,388 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 23 [2022-11-23 15:21:56,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:56,388 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2022-11-23 15:21:56,389 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) [2022-11-23 15:21:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2022-11-23 15:21:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:21:56,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:56,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:56,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 15:21:56,390 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)] === [2022-11-23 15:21:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash -624849616, now seen corresponding path program 1 times [2022-11-23 15:21:56,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:56,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249153343] [2022-11-23 15:21:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:56,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:56,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:56,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:56,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249153343] [2022-11-23 15:21:56,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249153343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:56,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:56,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:56,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669689856] [2022-11-23 15:21:56,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:56,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:56,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:56,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:56,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:56,435 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) [2022-11-23 15:21:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:56,503 INFO L93 Difference]: Finished difference Result 223 states and 266 transitions. [2022-11-23 15:21:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:56,504 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 [2022-11-23 15:21:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:56,505 INFO L225 Difference]: With dead ends: 223 [2022-11-23 15:21:56,506 INFO L226 Difference]: Without dead ends: 223 [2022-11-23 15:21:56,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:56,507 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:56,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 211 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:21:56,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-23 15:21:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 161. [2022-11-23 15:21:56,512 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) [2022-11-23 15:21:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2022-11-23 15:21:56,513 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 24 [2022-11-23 15:21:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:56,514 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2022-11-23 15:21:56,514 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) [2022-11-23 15:21:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2022-11-23 15:21:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:21:56,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:56,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:56,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 15:21:56,516 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)] === [2022-11-23 15:21:56,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -624846859, now seen corresponding path program 1 times [2022-11-23 15:21:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:56,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446262263] [2022-11-23 15:21:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:56,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:56,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446262263] [2022-11-23 15:21:56,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446262263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:56,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:56,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:21:56,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980674221] [2022-11-23 15:21:56,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:56,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:21:56,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:56,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:21:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:56,562 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) [2022-11-23 15:21:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:56,641 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2022-11-23 15:21:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:21:56,642 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 [2022-11-23 15:21:56,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:56,643 INFO L225 Difference]: With dead ends: 159 [2022-11-23 15:21:56,643 INFO L226 Difference]: Without dead ends: 159 [2022-11-23 15:21:56,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:21:56,645 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:56,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:21:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-23 15:21:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-23 15:21:56,654 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) [2022-11-23 15:21:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2022-11-23 15:21:56,655 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 24 [2022-11-23 15:21:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:56,656 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2022-11-23 15:21:56,656 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) [2022-11-23 15:21:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2022-11-23 15:21:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:21:56,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:56,657 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] [2022-11-23 15:21:56,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 15:21:56,659 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)] === [2022-11-23 15:21:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2104588190, now seen corresponding path program 1 times [2022-11-23 15:21:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:56,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260143099] [2022-11-23 15:21:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:56,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:56,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260143099] [2022-11-23 15:21:56,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260143099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:21:56,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:21:56,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:21:56,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864589450] [2022-11-23 15:21:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:21:56,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:21:56,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:56,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:21:56,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:21:56,923 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) [2022-11-23 15:21:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:57,281 INFO L93 Difference]: Finished difference Result 255 states and 292 transitions. [2022-11-23 15:21:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:21:57,281 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 [2022-11-23 15:21:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:57,283 INFO L225 Difference]: With dead ends: 255 [2022-11-23 15:21:57,283 INFO L226 Difference]: Without dead ends: 255 [2022-11-23 15:21:57,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:21:57,284 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 271 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:57,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 327 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:21:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-23 15:21:57,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2022-11-23 15:21:57,291 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) [2022-11-23 15:21:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2022-11-23 15:21:57,292 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 25 [2022-11-23 15:21:57,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:57,293 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2022-11-23 15:21:57,293 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) [2022-11-23 15:21:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2022-11-23 15:21:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:21:57,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:57,294 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] [2022-11-23 15:21:57,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 15:21:57,295 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)] === [2022-11-23 15:21:57,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash -502293249, now seen corresponding path program 1 times [2022-11-23 15:21:57,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:57,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657082647] [2022-11-23 15:21:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:57,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:57,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:57,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657082647] [2022-11-23 15:21:57,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657082647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:57,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463183544] [2022-11-23 15:21:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:57,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:57,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:57,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:57,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:21:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:57,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:21:57,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:57,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:21:57,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:21:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:57,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:57,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:57,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:57,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:57,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:57,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:57,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:58,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:21:58,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 15:21:58,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:21:58,211 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:21:58,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2022-11-23 15:21:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:58,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:21:58,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 15:21:58,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-23 15:21:58,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 15:21:58,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:58,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463183544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:21:58,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [33429179] [2022-11-23 15:21:58,941 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-23 15:21:58,942 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:21:58,946 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:21:58,952 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:21:58,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:21:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:21:59,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:21:59,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:21:59,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:21:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:21:59,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:59,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:21:59,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,216 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 [2022-11-23 15:21:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:21:59,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:59,258 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 [2022-11-23 15:21:59,658 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:22:02,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [33429179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:02,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:22:02,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 23 [2022-11-23 15:22:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594890381] [2022-11-23 15:22:02,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:02,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:22:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:22:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:22:02,057 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) [2022-11-23 15:22:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:03,280 INFO L93 Difference]: Finished difference Result 227 states and 261 transitions. [2022-11-23 15:22:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:22:03,281 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 [2022-11-23 15:22:03,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:03,282 INFO L225 Difference]: With dead ends: 227 [2022-11-23 15:22:03,282 INFO L226 Difference]: Without dead ends: 227 [2022-11-23 15:22:03,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:22:03,283 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 132 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:03,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 400 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:22:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-23 15:22:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2022-11-23 15:22:03,287 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) [2022-11-23 15:22:03,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 226 transitions. [2022-11-23 15:22:03,288 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 226 transitions. Word has length 27 [2022-11-23 15:22:03,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:03,288 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 226 transitions. [2022-11-23 15:22:03,288 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) [2022-11-23 15:22:03,288 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 226 transitions. [2022-11-23 15:22:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:22:03,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:03,289 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] [2022-11-23 15:22:03,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:03,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:03,496 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)] === [2022-11-23 15:22:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641916, now seen corresponding path program 1 times [2022-11-23 15:22:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:03,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410366539] [2022-11-23 15:22:03,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:03,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:03,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410366539] [2022-11-23 15:22:03,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410366539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:03,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:03,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:22:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891508319] [2022-11-23 15:22:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:03,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:22:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:03,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:22:03,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:22:03,826 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) [2022-11-23 15:22:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:04,536 INFO L93 Difference]: Finished difference Result 326 states and 367 transitions. [2022-11-23 15:22:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:22:04,537 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 [2022-11-23 15:22:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:04,538 INFO L225 Difference]: With dead ends: 326 [2022-11-23 15:22:04,538 INFO L226 Difference]: Without dead ends: 326 [2022-11-23 15:22:04,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:22:04,539 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 393 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:04,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 601 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:22:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-11-23 15:22:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 201. [2022-11-23 15:22:04,545 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) [2022-11-23 15:22:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2022-11-23 15:22:04,546 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 28 [2022-11-23 15:22:04,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:04,546 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2022-11-23 15:22:04,547 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) [2022-11-23 15:22:04,547 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2022-11-23 15:22:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:22:04,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:04,548 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] [2022-11-23 15:22:04,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 15:22:04,548 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)] === [2022-11-23 15:22:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641915, now seen corresponding path program 1 times [2022-11-23 15:22:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:04,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879955455] [2022-11-23 15:22:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:04,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:05,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:05,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879955455] [2022-11-23 15:22:05,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879955455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:05,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:05,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:22:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722787671] [2022-11-23 15:22:05,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:05,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:22:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:22:05,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:22:05,034 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) [2022-11-23 15:22:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:05,956 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2022-11-23 15:22:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:22:05,957 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 [2022-11-23 15:22:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:05,959 INFO L225 Difference]: With dead ends: 379 [2022-11-23 15:22:05,959 INFO L226 Difference]: Without dead ends: 379 [2022-11-23 15:22:05,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:22:05,960 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 419 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:05,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 576 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:22:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-23 15:22:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 207. [2022-11-23 15:22:05,966 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) [2022-11-23 15:22:05,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2022-11-23 15:22:05,967 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 28 [2022-11-23 15:22:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:05,967 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2022-11-23 15:22:05,968 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) [2022-11-23 15:22:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2022-11-23 15:22:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:22:05,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:05,970 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:05,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 15:22:05,970 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)] === [2022-11-23 15:22:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1296793307, now seen corresponding path program 1 times [2022-11-23 15:22:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:05,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065926013] [2022-11-23 15:22:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:05,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:06,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:06,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065926013] [2022-11-23 15:22:06,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065926013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:22:06,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923192839] [2022-11-23 15:22:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:06,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:06,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:22:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:22:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:06,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 15:22:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:06,891 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:06,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2022-11-23 15:22:06,901 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:06,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 21 [2022-11-23 15:22:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:06,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:22:06,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923192839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:06,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:22:06,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-11-23 15:22:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241688422] [2022-11-23 15:22:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:06,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:22:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:22:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:22:06,997 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) [2022-11-23 15:22:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:07,633 INFO L93 Difference]: Finished difference Result 310 states and 341 transitions. [2022-11-23 15:22:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:22:07,634 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 [2022-11-23 15:22:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:07,635 INFO L225 Difference]: With dead ends: 310 [2022-11-23 15:22:07,635 INFO L226 Difference]: Without dead ends: 307 [2022-11-23 15:22:07,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:22:07,636 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 274 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:07,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 594 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:22:07,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-11-23 15:22:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 207. [2022-11-23 15:22:07,641 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) [2022-11-23 15:22:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 242 transitions. [2022-11-23 15:22:07,642 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 242 transitions. Word has length 30 [2022-11-23 15:22:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:07,642 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 242 transitions. [2022-11-23 15:22:07,642 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) [2022-11-23 15:22:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 242 transitions. [2022-11-23 15:22:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:22:07,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:07,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:07,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:07,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-23 15:22:07,850 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)] === [2022-11-23 15:22:07,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:07,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1214837820, now seen corresponding path program 1 times [2022-11-23 15:22:07,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:07,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235050566] [2022-11-23 15:22:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:07,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:08,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:08,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235050566] [2022-11-23 15:22:08,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235050566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:08,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:08,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 15:22:08,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981970222] [2022-11-23 15:22:08,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:08,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:22:08,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:08,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:22:08,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:22:08,709 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) [2022-11-23 15:22:09,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:09,862 INFO L93 Difference]: Finished difference Result 393 states and 425 transitions. [2022-11-23 15:22:09,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 15:22:09,862 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 [2022-11-23 15:22:09,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:09,864 INFO L225 Difference]: With dead ends: 393 [2022-11-23 15:22:09,864 INFO L226 Difference]: Without dead ends: 393 [2022-11-23 15:22:09,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:22:09,865 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 542 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:09,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 868 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:22:09,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-23 15:22:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 207. [2022-11-23 15:22:09,871 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) [2022-11-23 15:22:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 241 transitions. [2022-11-23 15:22:09,872 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 241 transitions. Word has length 30 [2022-11-23 15:22:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:09,873 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 241 transitions. [2022-11-23 15:22:09,873 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) [2022-11-23 15:22:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 241 transitions. [2022-11-23 15:22:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:22:09,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:09,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:09,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 15:22:09,874 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)] === [2022-11-23 15:22:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141919, now seen corresponding path program 1 times [2022-11-23 15:22:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:09,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248578993] [2022-11-23 15:22:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:10,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:10,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248578993] [2022-11-23 15:22:10,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248578993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:10,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:10,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:22:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931009463] [2022-11-23 15:22:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:10,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:10,018 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) [2022-11-23 15:22:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:10,198 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2022-11-23 15:22:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:22:10,198 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 [2022-11-23 15:22:10,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:10,200 INFO L225 Difference]: With dead ends: 206 [2022-11-23 15:22:10,201 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 15:22:10,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:22:10,201 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:10,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 308 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:22:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 15:22:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-11-23 15:22:10,206 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) [2022-11-23 15:22:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2022-11-23 15:22:10,210 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 30 [2022-11-23 15:22:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:10,211 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2022-11-23 15:22:10,211 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) [2022-11-23 15:22:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2022-11-23 15:22:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:22:10,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:10,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:10,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 15:22:10,212 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)] === [2022-11-23 15:22:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141920, now seen corresponding path program 1 times [2022-11-23 15:22:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:10,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613225519] [2022-11-23 15:22:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:10,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:10,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613225519] [2022-11-23 15:22:10,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613225519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:10,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:10,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:22:10,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248970353] [2022-11-23 15:22:10,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:10,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:10,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:10,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:10,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:10,490 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) [2022-11-23 15:22:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:10,708 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2022-11-23 15:22:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:22:10,709 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 [2022-11-23 15:22:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:10,710 INFO L225 Difference]: With dead ends: 205 [2022-11-23 15:22:10,710 INFO L226 Difference]: Without dead ends: 205 [2022-11-23 15:22:10,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:22:10,711 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:10,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 302 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:22:10,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-23 15:22:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-11-23 15:22:10,716 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) [2022-11-23 15:22:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 239 transitions. [2022-11-23 15:22:10,717 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 239 transitions. Word has length 30 [2022-11-23 15:22:10,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:10,717 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 239 transitions. [2022-11-23 15:22:10,717 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) [2022-11-23 15:22:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 239 transitions. [2022-11-23 15:22:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:22:10,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:10,718 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] [2022-11-23 15:22:10,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 15:22:10,719 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)] === [2022-11-23 15:22:10,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash 90761328, now seen corresponding path program 1 times [2022-11-23 15:22:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:10,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729466807] [2022-11-23 15:22:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:10,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:22:11,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:11,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729466807] [2022-11-23 15:22:11,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729466807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:11,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:11,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 15:22:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224625945] [2022-11-23 15:22:11,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:22:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:11,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:22:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:22:11,010 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) [2022-11-23 15:22:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:11,375 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2022-11-23 15:22:11,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:22:11,376 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 [2022-11-23 15:22:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:11,377 INFO L225 Difference]: With dead ends: 269 [2022-11-23 15:22:11,377 INFO L226 Difference]: Without dead ends: 269 [2022-11-23 15:22:11,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:22:11,378 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 279 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:11,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 444 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:22:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-23 15:22:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 193. [2022-11-23 15:22:11,382 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) [2022-11-23 15:22:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2022-11-23 15:22:11,383 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 31 [2022-11-23 15:22:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:11,384 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2022-11-23 15:22:11,384 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) [2022-11-23 15:22:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2022-11-23 15:22:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:22:11,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:11,385 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] [2022-11-23 15:22:11,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 15:22:11,385 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)] === [2022-11-23 15:22:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:11,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2044341774, now seen corresponding path program 1 times [2022-11-23 15:22:11,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:11,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426484888] [2022-11-23 15:22:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:11,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:11,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:11,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426484888] [2022-11-23 15:22:11,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426484888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:11,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:11,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:22:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767564712] [2022-11-23 15:22:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:11,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:11,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:11,494 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) [2022-11-23 15:22:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:11,688 INFO L93 Difference]: Finished difference Result 203 states and 234 transitions. [2022-11-23 15:22:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:22:11,688 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 [2022-11-23 15:22:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:11,689 INFO L225 Difference]: With dead ends: 203 [2022-11-23 15:22:11,690 INFO L226 Difference]: Without dead ends: 203 [2022-11-23 15:22:11,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:22:11,690 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 45 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:11,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:22:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-23 15:22:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2022-11-23 15:22:11,694 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) [2022-11-23 15:22:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-11-23 15:22:11,695 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 31 [2022-11-23 15:22:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:11,695 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-11-23 15:22:11,695 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) [2022-11-23 15:22:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-11-23 15:22:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:22:11,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:11,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:11,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 15:22:11,696 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)] === [2022-11-23 15:22:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1566178367, now seen corresponding path program 1 times [2022-11-23 15:22:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:11,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464389651] [2022-11-23 15:22:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:11,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:11,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:11,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464389651] [2022-11-23 15:22:11,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464389651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:11,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:11,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:22:11,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801630382] [2022-11-23 15:22:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:11,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:22:11,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:11,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:22:11,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:22:11,896 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) [2022-11-23 15:22:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:12,050 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2022-11-23 15:22:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:22:12,051 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 [2022-11-23 15:22:12,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:12,052 INFO L225 Difference]: With dead ends: 206 [2022-11-23 15:22:12,052 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 15:22:12,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:12,053 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 [2022-11-23 15:22:12,053 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] [2022-11-23 15:22:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 15:22:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2022-11-23 15:22:12,058 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) [2022-11-23 15:22:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2022-11-23 15:22:12,060 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 32 [2022-11-23 15:22:12,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:12,060 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2022-11-23 15:22:12,060 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) [2022-11-23 15:22:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2022-11-23 15:22:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:22:12,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:12,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:12,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 15:22:12,062 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)] === [2022-11-23 15:22:12,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:12,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853815, now seen corresponding path program 1 times [2022-11-23 15:22:12,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:12,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675966423] [2022-11-23 15:22:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:12,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:12,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:12,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675966423] [2022-11-23 15:22:12,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675966423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:12,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:12,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:22:12,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513011158] [2022-11-23 15:22:12,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:12,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:22:12,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:12,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:22:12,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:22:12,563 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) [2022-11-23 15:22:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:13,224 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2022-11-23 15:22:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:22:13,225 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 [2022-11-23 15:22:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:13,226 INFO L225 Difference]: With dead ends: 195 [2022-11-23 15:22:13,226 INFO L226 Difference]: Without dead ends: 195 [2022-11-23 15:22:13,226 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 [2022-11-23 15:22:13,227 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 168 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:13,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 547 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:22:13,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-23 15:22:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2022-11-23 15:22:13,230 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) [2022-11-23 15:22:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2022-11-23 15:22:13,231 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 32 [2022-11-23 15:22:13,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:13,231 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2022-11-23 15:22:13,231 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) [2022-11-23 15:22:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2022-11-23 15:22:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:22:13,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:13,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:13,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 15:22:13,232 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)] === [2022-11-23 15:22:13,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:13,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853814, now seen corresponding path program 1 times [2022-11-23 15:22:13,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:13,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184547874] [2022-11-23 15:22:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:13,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:13,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184547874] [2022-11-23 15:22:13,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184547874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:13,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:13,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:22:13,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850868079] [2022-11-23 15:22:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:13,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:22:13,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:22:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:22:13,820 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) [2022-11-23 15:22:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:14,362 INFO L93 Difference]: Finished difference Result 194 states and 225 transitions. [2022-11-23 15:22:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:22:14,363 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 [2022-11-23 15:22:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:14,364 INFO L225 Difference]: With dead ends: 194 [2022-11-23 15:22:14,364 INFO L226 Difference]: Without dead ends: 194 [2022-11-23 15:22:14,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:22:14,365 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 165 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:14,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 384 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:22:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-23 15:22:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2022-11-23 15:22:14,369 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) [2022-11-23 15:22:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-11-23 15:22:14,369 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 32 [2022-11-23 15:22:14,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:14,369 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-11-23 15:22:14,370 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) [2022-11-23 15:22:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-11-23 15:22:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:22:14,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:14,370 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] [2022-11-23 15:22:14,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 15:22:14,370 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)] === [2022-11-23 15:22:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1834861821, now seen corresponding path program 1 times [2022-11-23 15:22:14,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:14,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881695646] [2022-11-23 15:22:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:14,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:15,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:15,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881695646] [2022-11-23 15:22:15,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881695646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:15,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:15,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 15:22:15,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431485701] [2022-11-23 15:22:15,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:15,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:22:15,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:15,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:22:15,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:22:15,137 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) [2022-11-23 15:22:15,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:15,875 INFO L93 Difference]: Finished difference Result 296 states and 322 transitions. [2022-11-23 15:22:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:22:15,876 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 [2022-11-23 15:22:15,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:15,877 INFO L225 Difference]: With dead ends: 296 [2022-11-23 15:22:15,877 INFO L226 Difference]: Without dead ends: 296 [2022-11-23 15:22:15,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:22:15,878 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 449 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:15,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 715 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:22:15,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-11-23 15:22:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 193. [2022-11-23 15:22:15,882 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) [2022-11-23 15:22:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions. [2022-11-23 15:22:15,882 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 33 [2022-11-23 15:22:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:15,882 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions. [2022-11-23 15:22:15,883 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) [2022-11-23 15:22:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions. [2022-11-23 15:22:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:22:15,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:15,883 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] [2022-11-23 15:22:15,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-23 15:22:15,884 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)] === [2022-11-23 15:22:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1306585279, now seen corresponding path program 1 times [2022-11-23 15:22:15,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:15,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914376090] [2022-11-23 15:22:15,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:15,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:16,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:16,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914376090] [2022-11-23 15:22:16,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914376090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:16,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:16,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:22:16,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552669686] [2022-11-23 15:22:16,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:16,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:16,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:16,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:22:16,003 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) [2022-11-23 15:22:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:16,152 INFO L93 Difference]: Finished difference Result 199 states and 230 transitions. [2022-11-23 15:22:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:22:16,153 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 [2022-11-23 15:22:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:16,154 INFO L225 Difference]: With dead ends: 199 [2022-11-23 15:22:16,154 INFO L226 Difference]: Without dead ends: 199 [2022-11-23 15:22:16,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:22:16,155 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 16 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 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 [2022-11-23 15:22:16,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 257 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-23 15:22:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 191. [2022-11-23 15:22:16,159 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) [2022-11-23 15:22:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 221 transitions. [2022-11-23 15:22:16,159 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 221 transitions. Word has length 33 [2022-11-23 15:22:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:16,160 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 221 transitions. [2022-11-23 15:22:16,160 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) [2022-11-23 15:22:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 221 transitions. [2022-11-23 15:22:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:22:16,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:16,161 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] [2022-11-23 15:22:16,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-23 15:22:16,161 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)] === [2022-11-23 15:22:16,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:16,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1884404572, now seen corresponding path program 1 times [2022-11-23 15:22:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:16,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986490426] [2022-11-23 15:22:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:16,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:16,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:16,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986490426] [2022-11-23 15:22:16,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986490426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:22:16,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031840459] [2022-11-23 15:22:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:16,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:16,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:16,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:22:16,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:22:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:16,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 15:22:16,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:16,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:16,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:16,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:16,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:16,600 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:16,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:16,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 15:22:16,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 15:22:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:16,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:22:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:16,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031840459] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:22:16,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1820158493] [2022-11-23 15:22:16,880 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-23 15:22:16,881 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:22:16,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:22:16,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:22:16,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:22:16,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:16,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:22:16,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:16,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:16,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:16,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:16,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:16,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:16,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:16,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:17,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,060 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 30 treesize of output 32 [2022-11-23 15:22:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,074 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 [2022-11-23 15:22:17,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:17,088 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 [2022-11-23 15:22:17,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:17,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:17,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:17,540 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:22:20,248 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 [2022-11-23 15:22:20,249 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:22:20,249 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:22:20,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 7 [2022-11-23 15:22:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078783735] [2022-11-23 15:22:20,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:22:20,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:22:20,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:20,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:22:20,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:22:20,251 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) [2022-11-23 15:22:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:20,685 INFO L93 Difference]: Finished difference Result 295 states and 321 transitions. [2022-11-23 15:22:20,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:22:20,686 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 [2022-11-23 15:22:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:20,687 INFO L225 Difference]: With dead ends: 295 [2022-11-23 15:22:20,687 INFO L226 Difference]: Without dead ends: 295 [2022-11-23 15:22:20,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:22:20,688 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 156 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:20,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 418 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:22:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-11-23 15:22:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 226. [2022-11-23 15:22:20,692 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) [2022-11-23 15:22:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 275 transitions. [2022-11-23 15:22:20,694 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 275 transitions. Word has length 35 [2022-11-23 15:22:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:20,694 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 275 transitions. [2022-11-23 15:22:20,694 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) [2022-11-23 15:22:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 275 transitions. [2022-11-23 15:22:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:22:20,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:20,695 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] [2022-11-23 15:22:20,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:20,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-23 15:22:20,905 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)] === [2022-11-23 15:22:20,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1884408352, now seen corresponding path program 1 times [2022-11-23 15:22:20,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:20,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962615939] [2022-11-23 15:22:20,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:21,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:21,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962615939] [2022-11-23 15:22:21,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962615939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:22:21,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75467889] [2022-11-23 15:22:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:21,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:21,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:22:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:22:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:21,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:22:21,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:21,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:21,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:22:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:22:21,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75467889] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:22:21,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1815131319] [2022-11-23 15:22:21,337 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-23 15:22:21,337 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:22:21,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:22:21,338 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:22:21,338 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:22:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:22:21,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:21,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:21,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:21,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:21,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,494 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 [2022-11-23 15:22:21,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:21,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:21,516 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 [2022-11-23 15:22:21,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:21,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:21,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:22,015 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:22:24,569 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 [2022-11-23 15:22:24,569 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:22:24,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:22:24,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2022-11-23 15:22:24,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572561888] [2022-11-23 15:22:24,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:22:24,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:22:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:22:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:22:24,571 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) [2022-11-23 15:22:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:24,763 INFO L93 Difference]: Finished difference Result 229 states and 277 transitions. [2022-11-23 15:22:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:22:24,763 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 [2022-11-23 15:22:24,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:24,764 INFO L225 Difference]: With dead ends: 229 [2022-11-23 15:22:24,764 INFO L226 Difference]: Without dead ends: 210 [2022-11-23 15:22:24,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:22:24,765 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:24,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:22:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-23 15:22:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-23 15:22:24,769 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) [2022-11-23 15:22:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2022-11-23 15:22:24,770 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 35 [2022-11-23 15:22:24,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:24,770 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2022-11-23 15:22:24,770 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) [2022-11-23 15:22:24,770 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2022-11-23 15:22:24,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 15:22:24,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:24,771 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] [2022-11-23 15:22:24,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:24,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:24,977 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)] === [2022-11-23 15:22:24,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1186708526, now seen corresponding path program 1 times [2022-11-23 15:22:24,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:24,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386181900] [2022-11-23 15:22:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:25,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:25,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386181900] [2022-11-23 15:22:25,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386181900] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:22:25,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52296281] [2022-11-23 15:22:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:25,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:25,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:25,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:22:25,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:22:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:25,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:22:25,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:25,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:22:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:25,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52296281] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:22:25,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1366475651] [2022-11-23 15:22:25,254 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-11-23 15:22:25,254 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:22:25,254 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:22:25,255 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:22:25,255 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:22:25,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:22:25,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:25,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:25,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,342 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 34 treesize of output 21 [2022-11-23 15:22:25,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:25,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:25,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:22:25,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,464 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 [2022-11-23 15:22:25,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,479 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 [2022-11-23 15:22:25,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:25,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,544 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 15:22:25,544 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 [2022-11-23 15:22:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,563 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 [2022-11-23 15:22:25,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-23 15:22:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:25,632 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:22:25,633 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 [2022-11-23 15:22:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,664 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-23 15:22:25,665 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 [2022-11-23 15:22:25,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:25,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-11-23 15:22:26,230 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:22:30,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1366475651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:30,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:22:30,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 25 [2022-11-23 15:22:30,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871806749] [2022-11-23 15:22:30,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:30,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 15:22:30,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:30,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 15:22:30,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:22:30,855 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) [2022-11-23 15:22:33,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:33,440 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2022-11-23 15:22:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 15:22:33,440 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 [2022-11-23 15:22:33,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:33,444 INFO L225 Difference]: With dead ends: 235 [2022-11-23 15:22:33,444 INFO L226 Difference]: Without dead ends: 235 [2022-11-23 15:22:33,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2022-11-23 15:22:33,447 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 193 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:33,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 535 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 15:22:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-23 15:22:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2022-11-23 15:22:33,452 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) [2022-11-23 15:22:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 263 transitions. [2022-11-23 15:22:33,453 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 263 transitions. Word has length 37 [2022-11-23 15:22:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 263 transitions. [2022-11-23 15:22:33,453 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) [2022-11-23 15:22:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 263 transitions. [2022-11-23 15:22:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:22:33,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:33,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:33,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:22:33,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-23 15:22:33,660 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)] === [2022-11-23 15:22:33,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2004688172, now seen corresponding path program 1 times [2022-11-23 15:22:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:33,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262191674] [2022-11-23 15:22:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:22:33,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:33,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262191674] [2022-11-23 15:22:33,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262191674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:33,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:33,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:22:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598846983] [2022-11-23 15:22:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:33,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:33,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:33,709 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) [2022-11-23 15:22:33,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:33,795 INFO L93 Difference]: Finished difference Result 222 states and 266 transitions. [2022-11-23 15:22:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:33,795 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 [2022-11-23 15:22:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:33,796 INFO L225 Difference]: With dead ends: 222 [2022-11-23 15:22:33,796 INFO L226 Difference]: Without dead ends: 222 [2022-11-23 15:22:33,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:33,797 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 77 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-23 15:22:33,798 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] [2022-11-23 15:22:33,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-23 15:22:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2022-11-23 15:22:33,802 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) [2022-11-23 15:22:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2022-11-23 15:22:33,803 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 44 [2022-11-23 15:22:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:33,803 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2022-11-23 15:22:33,804 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) [2022-11-23 15:22:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2022-11-23 15:22:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:22:33,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:33,804 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:33,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-23 15:22:33,805 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)] === [2022-11-23 15:22:33,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:33,805 INFO L85 PathProgramCache]: Analyzing trace with hash -810433761, now seen corresponding path program 1 times [2022-11-23 15:22:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:33,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075271861] [2022-11-23 15:22:33,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:33,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:34,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:34,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075271861] [2022-11-23 15:22:34,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075271861] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:22:34,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734881480] [2022-11-23 15:22:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:34,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:22:34,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:34,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:22:34,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:22:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:35,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 15:22:35,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:22:35,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:22:35,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:35,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:35,266 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:22:35,267 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 [2022-11-23 15:22:35,344 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-23 15:22:35,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-23 15:22:35,370 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-23 15:22:35,370 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 1 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:35,529 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:35,530 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 [2022-11-23 15:22:35,544 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 [2022-11-23 15:22:35,740 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:35,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 70 [2022-11-23 15:22:35,753 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:35,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2022-11-23 15:22:36,030 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:36,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 70 [2022-11-23 15:22:36,043 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:22:36,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2022-11-23 15:22:36,498 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:36,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2022-11-23 15:22:36,507 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:36,508 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 [2022-11-23 15:22:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:36,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:22:37,205 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 [2022-11-23 15:22:37,232 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 [2022-11-23 15:22:37,265 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 [2022-11-23 15:22:37,889 INFO L321 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-11-23 15:22:37,889 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 [2022-11-23 15:22:37,915 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-23 15:22:37,915 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 [2022-11-23 15:22:37,929 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:37,930 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 [2022-11-23 15:22:37,945 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 15:22:37,945 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 [2022-11-23 15:22:37,962 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 [2022-11-23 15:22:37,972 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:37,973 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 [2022-11-23 15:22:37,978 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 [2022-11-23 15:22:37,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:38,033 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-23 15:22:38,033 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 [2022-11-23 15:22:38,043 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:38,043 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 [2022-11-23 15:22:38,050 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 [2022-11-23 15:22:38,062 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:22:38,063 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 [2022-11-23 15:22:44,219 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) [2022-11-23 15:22:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:44,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734881480] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:22:44,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177307583] [2022-11-23 15:22:44,258 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-23 15:22:44,258 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:22:44,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:22:44,258 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:22:44,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:22:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:22:44,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:44,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:44,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:44,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:44,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:44,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 15:22:44,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,418 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 [2022-11-23 15:22:44,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:22:44,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,565 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 [2022-11-23 15:22:44,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,580 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 [2022-11-23 15:22:44,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:44,651 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:22:44,651 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 [2022-11-23 15:22:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,670 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 [2022-11-23 15:22:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,687 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 [2022-11-23 15:22:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:44,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:44,767 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:22:44,768 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 [2022-11-23 15:22:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,792 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 [2022-11-23 15:22:44,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,892 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 [2022-11-23 15:22:44,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,917 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 [2022-11-23 15:22:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:44,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:22:45,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-23 15:22:45,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:45,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,119 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 [2022-11-23 15:22:45,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,154 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 [2022-11-23 15:22:45,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,242 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-23 15:22:45,243 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 [2022-11-23 15:22:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,275 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 [2022-11-23 15:22:45,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,288 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 [2022-11-23 15:22:45,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,456 INFO L321 Elim1Store]: treesize reduction 320, result has 16.7 percent of original size [2022-11-23 15:22:45,456 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 [2022-11-23 15:22:45,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,528 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-23 15:22:45,529 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 [2022-11-23 15:22:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:22:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:45,963 INFO L321 Elim1Store]: treesize reduction 170, result has 11.0 percent of original size [2022-11-23 15:22:45,964 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 [2022-11-23 15:22:45,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:45,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 503 [2022-11-23 15:22:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:46,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:46,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:46,085 INFO L321 Elim1Store]: treesize reduction 206, result has 12.3 percent of original size [2022-11-23 15:22:46,085 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 [2022-11-23 15:22:46,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,015 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-23 15:22:47,016 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 [2022-11-23 15:22:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,482 INFO L321 Elim1Store]: treesize reduction 388, result has 14.5 percent of original size [2022-11-23 15:22:47,483 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 [2022-11-23 15:22:47,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:47,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:47,707 INFO L321 Elim1Store]: treesize reduction 308, result has 17.6 percent of original size [2022-11-23 15:22:47,708 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 [2022-11-23 15:22:47,785 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:22:47,785 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 [2022-11-23 15:22:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,391 INFO L321 Elim1Store]: treesize reduction 234, result has 11.7 percent of original size [2022-11-23 15:22:48,392 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 [2022-11-23 15:22:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,423 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 [2022-11-23 15:22:48,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,646 INFO L321 Elim1Store]: treesize reduction 522, result has 13.6 percent of original size [2022-11-23 15:22:48,647 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 [2022-11-23 15:22:48,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:48,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:48,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:49,704 INFO L321 Elim1Store]: treesize reduction 1000, result has 10.4 percent of original size [2022-11-23 15:22:49,705 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 [2022-11-23 15:22:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:49,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:49,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:49,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:49,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:22:50,518 INFO L321 Elim1Store]: treesize reduction 1036, result has 11.0 percent of original size [2022-11-23 15:22:50,518 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 [2022-11-23 15:22:50,643 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:22:50,644 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 [2022-11-23 15:22:54,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:54,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:22:54,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:54,086 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:22:54,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 15:22:54,110 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:22:54,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:22:54,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:22:54,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:54,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:22:54,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:22:54,179 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:22:54,180 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 [2022-11-23 15:22:54,189 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 [2022-11-23 15:22:54,196 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 [2022-11-23 15:22:54,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:22:54,480 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:22:54,481 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 [2022-11-23 15:22:54,703 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:22:54,704 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 [2022-11-23 15:22:55,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:22:55,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:55,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:22:55,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:22:55,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:22:55,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:55,449 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 15 treesize of output 1 [2022-11-23 15:22:55,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:22:55,487 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:22:55,488 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 [2022-11-23 15:22:55,515 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-23 15:22:55,516 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 [2022-11-23 15:22:55,524 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 [2022-11-23 15:22:55,561 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:22:59,036 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 [2022-11-23 15:22:59,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:22:59,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:22:59,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 37 [2022-11-23 15:22:59,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126530027] [2022-11-23 15:22:59,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:22:59,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-23 15:22:59,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:59,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-23 15:22:59,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=3149, Unknown=16, NotChecked=354, Total=3906 [2022-11-23 15:22:59,039 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) [2022-11-23 15:23:01,447 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 [2022-11-23 15:23:05,370 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)) 1))) (forall ((v_ArrVal_1381 (Array Int Int))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (or (= (select |c_#valid| .cse1) 1) (= .cse1 0)))))) is different from false [2022-11-23 15:23:22,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:22,190 INFO L93 Difference]: Finished difference Result 739 states and 861 transitions. [2022-11-23 15:23:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-23 15:23:22,190 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 [2022-11-23 15:23:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:22,192 INFO L225 Difference]: With dead ends: 739 [2022-11-23 15:23:22,193 INFO L226 Difference]: Without dead ends: 739 [2022-11-23 15:23:22,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 3732 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=1227, Invalid=10083, Unknown=52, NotChecked=1070, Total=12432 [2022-11-23 15:23:22,196 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1877 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 172 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 1059 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:22,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 1820 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2065 Invalid, 30 Unknown, 1059 Unchecked, 5.6s Time] [2022-11-23 15:23:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-23 15:23:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 281. [2022-11-23 15:23:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 256 states have (on average 1.30078125) internal successors, (333), 280 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 333 transitions. [2022-11-23 15:23:22,205 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 333 transitions. Word has length 44 [2022-11-23 15:23:22,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:22,205 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 333 transitions. [2022-11-23 15:23:22,205 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) [2022-11-23 15:23:22,205 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 333 transitions. [2022-11-23 15:23:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 15:23:22,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:22,206 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] [2022-11-23 15:23:22,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-23 15:23:22,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-23 15:23:22,416 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)] === [2022-11-23 15:23:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795631, now seen corresponding path program 1 times [2022-11-23 15:23:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:22,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778562226] [2022-11-23 15:23:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:22,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778562226] [2022-11-23 15:23:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778562226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:22,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:22,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:23:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217787274] [2022-11-23 15:23:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:22,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:23:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:23:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:23:22,807 INFO L87 Difference]: Start difference. First operand 281 states and 333 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) [2022-11-23 15:23:23,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:23,495 INFO L93 Difference]: Finished difference Result 292 states and 339 transitions. [2022-11-23 15:23:23,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:23:23,495 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 [2022-11-23 15:23:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:23,496 INFO L225 Difference]: With dead ends: 292 [2022-11-23 15:23:23,496 INFO L226 Difference]: Without dead ends: 292 [2022-11-23 15:23:23,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-23 15:23:23,497 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 300 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:23,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 269 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:23:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-23 15:23:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 281. [2022-11-23 15:23:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 256 states have (on average 1.296875) internal successors, (332), 280 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 332 transitions. [2022-11-23 15:23:23,503 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 332 transitions. Word has length 45 [2022-11-23 15:23:23,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:23,504 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 332 transitions. [2022-11-23 15:23:23,504 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) [2022-11-23 15:23:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 332 transitions. [2022-11-23 15:23:23,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 15:23:23,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:23,505 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] [2022-11-23 15:23:23,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-23 15:23:23,505 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)] === [2022-11-23 15:23:23,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:23,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795632, now seen corresponding path program 1 times [2022-11-23 15:23:23,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:23,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394797568] [2022-11-23 15:23:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:23,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:24,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:24,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394797568] [2022-11-23 15:23:24,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394797568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:24,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:24,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:23:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650448917] [2022-11-23 15:23:24,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:24,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:23:24,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:23:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:23:24,019 INFO L87 Difference]: Start difference. First operand 281 states and 332 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) [2022-11-23 15:23:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:24,811 INFO L93 Difference]: Finished difference Result 293 states and 340 transitions. [2022-11-23 15:23:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:23:24,812 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 [2022-11-23 15:23:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:24,814 INFO L225 Difference]: With dead ends: 293 [2022-11-23 15:23:24,814 INFO L226 Difference]: Without dead ends: 293 [2022-11-23 15:23:24,814 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 [2022-11-23 15:23:24,814 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 214 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:24,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 314 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:23:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-11-23 15:23:24,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 281. [2022-11-23 15:23:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 256 states have (on average 1.2890625) internal successors, (330), 280 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 330 transitions. [2022-11-23 15:23:24,820 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 330 transitions. Word has length 45 [2022-11-23 15:23:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:24,820 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 330 transitions. [2022-11-23 15:23:24,821 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) [2022-11-23 15:23:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 330 transitions. [2022-11-23 15:23:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 15:23:24,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:24,822 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] [2022-11-23 15:23:24,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-23 15:23:24,822 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)] === [2022-11-23 15:23:24,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711168, now seen corresponding path program 1 times [2022-11-23 15:23:24,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:24,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150467153] [2022-11-23 15:23:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:25,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:25,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150467153] [2022-11-23 15:23:25,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150467153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:25,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408789542] [2022-11-23 15:23:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:25,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:25,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:25,784 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:25,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:23:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:25,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 15:23:25,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:26,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:23:26,199 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:26,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:23:26,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:26,426 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:26,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-23 15:23:26,507 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:26,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-23 15:23:26,642 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:26,643 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 28 treesize of output 29 [2022-11-23 15:23:26,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:26,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-23 15:23:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:26,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:27,771 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:27,772 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 [2022-11-23 15:23:27,788 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:27,788 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 [2022-11-23 15:23:27,806 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:27,807 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 [2022-11-23 15:23:27,814 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 [2022-11-23 15:23:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:35,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408789542] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:35,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [537939479] [2022-11-23 15:23:35,229 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-23 15:23:35,230 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:35,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:35,230 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:35,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:35,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:23:35,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:23:35,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:35,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:23:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:23:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:23:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:23:35,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,404 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 [2022-11-23 15:23:35,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,417 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 [2022-11-23 15:23:35,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:23:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,529 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 [2022-11-23 15:23:35,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,546 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 [2022-11-23 15:23:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:23:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:35,616 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:23:35,617 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 [2022-11-23 15:23:35,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,635 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 [2022-11-23 15:23:35,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,652 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 [2022-11-23 15:23:35,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:35,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:35,729 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:23:35,730 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 [2022-11-23 15:23:35,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,764 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 15:23:35,765 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 [2022-11-23 15:23:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:23:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:23:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,876 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 [2022-11-23 15:23:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,905 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 [2022-11-23 15:23:35,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:35,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-23 15:23:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,046 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 [2022-11-23 15:23:36,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:23:36,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,093 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 [2022-11-23 15:23:36,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,195 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-23 15:23:36,195 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 [2022-11-23 15:23:36,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,231 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 [2022-11-23 15:23:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,252 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 [2022-11-23 15:23:36,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:23:36,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,481 INFO L321 Elim1Store]: treesize reduction 280, result has 16.2 percent of original size [2022-11-23 15:23:36,482 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 [2022-11-23 15:23:36,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,539 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 15:23:36,540 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 [2022-11-23 15:23:36,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,863 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-11-23 15:23:36,863 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 [2022-11-23 15:23:36,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:36,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:36,971 INFO L321 Elim1Store]: treesize reduction 114, result has 20.3 percent of original size [2022-11-23 15:23:36,972 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 [2022-11-23 15:23:36,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,002 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 [2022-11-23 15:23:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,703 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-23 15:23:37,703 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 [2022-11-23 15:23:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:37,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:37,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:37,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:37,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:37,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,066 INFO L321 Elim1Store]: treesize reduction 92, result has 22.7 percent of original size [2022-11-23 15:23:38,067 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 [2022-11-23 15:23:38,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:38,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:38,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:38,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:38,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,223 INFO L321 Elim1Store]: treesize reduction 140, result has 11.9 percent of original size [2022-11-23 15:23:38,223 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 [2022-11-23 15:23:38,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:38,289 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-23 15:23:38,289 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 [2022-11-23 15:23:39,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,146 INFO L321 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2022-11-23 15:23:39,146 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 [2022-11-23 15:23:39,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,204 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 [2022-11-23 15:23:39,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:39,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:39,452 INFO L321 Elim1Store]: treesize reduction 444, result has 15.9 percent of original size [2022-11-23 15:23:39,453 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 [2022-11-23 15:23:40,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:40,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:40,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:40,536 INFO L321 Elim1Store]: treesize reduction 548, result has 16.2 percent of original size [2022-11-23 15:23:40,537 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 [2022-11-23 15:23:40,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:40,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:40,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:40,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:41,216 INFO L321 Elim1Store]: treesize reduction 840, result has 16.5 percent of original size [2022-11-23 15:23:41,216 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 [2022-11-23 15:23:41,326 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:23:41,326 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 [2022-11-23 15:23:44,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:23:44,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:23:44,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:23:44,689 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:23:44,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 15:23:44,726 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:44,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:23:44,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:23:44,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:23:44,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:23:44,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:44,796 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:23:44,796 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 [2022-11-23 15:23:44,806 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 [2022-11-23 15:23:44,815 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 [2022-11-23 15:23:45,145 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:23:45,145 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 [2022-11-23 15:23:45,465 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:23:45,466 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 [2022-11-23 15:23:46,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:23:46,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:23:46,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:23:46,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:23:46,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:23:46,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:23:46,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:46,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:46,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:23:46,876 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:23:46,876 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 [2022-11-23 15:23:46,918 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-23 15:23:46,919 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 [2022-11-23 15:23:46,926 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 [2022-11-23 15:23:46,972 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:51,259 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20451#(and (= |ULTIMATE.start_main_~len~0#1| 0) (not (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:23:51,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:23:51,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:51,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 27 [2022-11-23 15:23:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468459238] [2022-11-23 15:23:51,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:23:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 15:23:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 15:23:51,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2710, Unknown=19, NotChecked=0, Total=3080 [2022-11-23 15:23:51,262 INFO L87 Difference]: Start difference. First operand 281 states and 330 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) [2022-11-23 15:23:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:55,986 INFO L93 Difference]: Finished difference Result 750 states and 838 transitions. [2022-11-23 15:23:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-23 15:23:55,987 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 [2022-11-23 15:23:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:55,988 INFO L225 Difference]: With dead ends: 750 [2022-11-23 15:23:55,989 INFO L226 Difference]: Without dead ends: 750 [2022-11-23 15:23:55,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=816, Invalid=5645, Unknown=19, NotChecked=0, Total=6480 [2022-11-23 15:23:55,992 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2516 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:55,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1160 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-23 15:23:55,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-11-23 15:23:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 381. [2022-11-23 15:23:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 356 states have (on average 1.2668539325842696) internal successors, (451), 380 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 451 transitions. [2022-11-23 15:23:56,002 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 451 transitions. Word has length 46 [2022-11-23 15:23:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:56,002 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 451 transitions. [2022-11-23 15:23:56,002 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) [2022-11-23 15:23:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 451 transitions. [2022-11-23 15:23:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 15:23:56,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:56,004 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] [2022-11-23 15:23:56,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:56,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:56,210 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)] === [2022-11-23 15:23:56,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711167, now seen corresponding path program 1 times [2022-11-23 15:23:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:56,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908019265] [2022-11-23 15:23:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:56,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:56,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908019265] [2022-11-23 15:23:56,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908019265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673451252] [2022-11-23 15:23:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:56,894 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:23:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:57,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-23 15:23:57,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:57,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:23:57,272 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-23 15:23:57,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-23 15:23:57,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:23:57,344 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 11 treesize of output 7 [2022-11-23 15:23:57,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:23:57,512 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:57,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-23 15:23:57,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 15:23:57,620 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:57,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-23 15:23:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:57,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 15:23:57,775 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:23:57,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-23 15:23:57,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 15:23:58,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:58,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-23 15:23:58,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:58,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 15:23:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:58,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:59,265 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (v_ArrVal_1652 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1649))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1648) .cse0 v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_1652) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|))))) (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)))) (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1648) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1649) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|)))))) is different from false [2022-11-23 15:23:59,302 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1648) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1649) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|) 8)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)))) (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (v_ArrVal_1652 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)) (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1649))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1648) .cse1 v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|) 12) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1652) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|))))))))) is different from false [2022-11-23 15:23:59,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:59,320 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 [2022-11-23 15:23:59,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:59,330 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 [2022-11-23 15:23:59,357 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:59,357 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 [2022-11-23 15:23:59,398 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:59,398 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 [2022-11-23 15:23:59,449 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 [2022-11-23 15:23:59,466 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 [2022-11-23 15:23:59,482 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 [2022-11-23 15:23:59,513 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:23:59,513 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 [2022-11-23 15:24:02,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:24:02,635 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 [2022-11-23 15:24:02,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:24:02,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-11-23 15:24:02,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:02,658 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 [2022-11-23 15:24:02,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:02,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:02,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:02,686 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 [2022-11-23 15:24:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:24:03,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673451252] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:03,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [505295147] [2022-11-23 15:24:03,342 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-23 15:24:03,342 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:03,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:03,343 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:03,343 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:24:03,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:24:03,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:24:03,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:24:03,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:24:03,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:24:03,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:24:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,486 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 [2022-11-23 15:24:03,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,499 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 [2022-11-23 15:24:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:24:03,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:24:03,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,615 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 [2022-11-23 15:24:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:24:03,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,644 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 [2022-11-23 15:24:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:03,701 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:24:03,702 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 [2022-11-23 15:24:03,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,720 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 122 treesize of output 106 [2022-11-23 15:24:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,735 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 54 treesize of output 21 [2022-11-23 15:24:03,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:03,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:03,794 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:24:03,794 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 [2022-11-23 15:24:03,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,830 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-23 15:24:03,831 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 [2022-11-23 15:24:03,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:24:03,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:24:03,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:03,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:03,950 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-23 15:24:03,951 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 [2022-11-23 15:24:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:03,975 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 [2022-11-23 15:24:04,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 52 [2022-11-23 15:24:04,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,129 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-23 15:24:04,130 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 [2022-11-23 15:24:04,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,156 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 [2022-11-23 15:24:04,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:24:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,297 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-23 15:24:04,297 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 [2022-11-23 15:24:04,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,332 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 [2022-11-23 15:24:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,349 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 [2022-11-23 15:24:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:24:04,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,578 INFO L321 Elim1Store]: treesize reduction 220, result has 19.7 percent of original size [2022-11-23 15:24:04,579 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 [2022-11-23 15:24:04,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,614 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 [2022-11-23 15:24:04,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,014 INFO L321 Elim1Store]: treesize reduction 114, result has 13.0 percent of original size [2022-11-23 15:24:05,014 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 [2022-11-23 15:24:05,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,040 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 [2022-11-23 15:24:05,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,130 INFO L321 Elim1Store]: treesize reduction 162, result has 11.5 percent of original size [2022-11-23 15:24:05,131 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 [2022-11-23 15:24:05,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,629 INFO L321 Elim1Store]: treesize reduction 246, result has 12.1 percent of original size [2022-11-23 15:24:05,629 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 [2022-11-23 15:24:05,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,830 INFO L321 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2022-11-23 15:24:05,831 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 [2022-11-23 15:24:05,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:05,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:05,950 INFO L321 Elim1Store]: treesize reduction 180, result has 9.5 percent of original size [2022-11-23 15:24:05,951 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 [2022-11-23 15:24:05,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,000 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-23 15:24:06,000 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 [2022-11-23 15:24:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,296 INFO L321 Elim1Store]: treesize reduction 162, result has 16.1 percent of original size [2022-11-23 15:24:06,297 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 [2022-11-23 15:24:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,662 INFO L321 Elim1Store]: treesize reduction 530, result has 13.8 percent of original size [2022-11-23 15:24:06,663 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 [2022-11-23 15:24:06,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,692 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 [2022-11-23 15:24:06,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:06,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:06,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:08,203 INFO L321 Elim1Store]: treesize reduction 820, result has 16.9 percent of original size [2022-11-23 15:24:08,203 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 [2022-11-23 15:24:08,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:08,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:08,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:08,998 INFO L321 Elim1Store]: treesize reduction 956, result has 15.2 percent of original size [2022-11-23 15:24:08,998 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 [2022-11-23 15:24:09,082 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:24:09,083 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 [2022-11-23 15:24:52,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:24:52,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:24:52,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:24:52,139 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:24:52,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 15:24:52,187 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:52,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:24:52,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:24:52,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:24:52,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:24:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:52,280 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:24:52,280 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 [2022-11-23 15:24:52,293 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 [2022-11-23 15:24:52,304 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 [2022-11-23 15:24:52,660 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:24:52,661 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 [2022-11-23 15:24:53,022 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:24:53,022 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 [2022-11-23 15:24:53,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:24:53,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:24:53,333 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 19 treesize of output 1 [2022-11-23 15:24:53,341 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 13 treesize of output 9 [2022-11-23 15:24:53,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:24:53,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:24:53,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:24:53,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:24:53,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:24:53,600 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:24:53,601 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 [2022-11-23 15:24:53,649 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-23 15:24:53,649 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 [2022-11-23 15:24:53,658 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 [2022-11-23 15:24:53,696 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:58,618 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21959#(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 [2022-11-23 15:24:58,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:58,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:58,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 29 [2022-11-23 15:24:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177711699] [2022-11-23 15:24:58,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:58,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 15:24:58,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 15:24:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=2719, Unknown=6, NotChecked=214, Total=3192 [2022-11-23 15:24:58,620 INFO L87 Difference]: Start difference. First operand 381 states and 451 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) [2022-11-23 15:25:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:25:03,361 INFO L93 Difference]: Finished difference Result 567 states and 643 transitions. [2022-11-23 15:25:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 15:25:03,361 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 [2022-11-23 15:25:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:25:03,364 INFO L225 Difference]: With dead ends: 567 [2022-11-23 15:25:03,364 INFO L226 Difference]: Without dead ends: 567 [2022-11-23 15:25:03,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=536, Invalid=5166, Unknown=6, NotChecked=298, Total=6006 [2022-11-23 15:25:03,366 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 1174 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 505 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:25:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1111 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1769 Invalid, 1 Unknown, 505 Unchecked, 2.8s Time] [2022-11-23 15:25:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-23 15:25:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 424. [2022-11-23 15:25:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 399 states have (on average 1.2857142857142858) internal successors, (513), 423 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:25:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 513 transitions. [2022-11-23 15:25:03,376 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 513 transitions. Word has length 46 [2022-11-23 15:25:03,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:25:03,376 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 513 transitions. [2022-11-23 15:25:03,377 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) [2022-11-23 15:25:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 513 transitions. [2022-11-23 15:25:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:25:03,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:25:03,378 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] [2022-11-23 15:25:03,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:25:03,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:25:03,584 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)] === [2022-11-23 15:25:03,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:25:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash -157749319, now seen corresponding path program 1 times [2022-11-23 15:25:03,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:25:03,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093492594] [2022-11-23 15:25:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:03,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:25:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:25:04,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:25:04,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093492594] [2022-11-23 15:25:04,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093492594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:25:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050438436] [2022-11-23 15:25:04,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:25:04,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:25:04,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:25:04,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:25:04,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:25:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:25:05,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-23 15:25:05,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:25:05,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:25:05,202 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:25:05,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:25:05,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:25:05,396 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:25:05,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-23 15:25:05,505 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:25:05,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-23 15:25:05,725 INFO L321 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-11-23 15:25:05,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 45 [2022-11-23 15:25:05,861 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-23 15:25:05,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-23 15:25:06,251 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:25:06,251 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 [2022-11-23 15:25:06,590 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:25:06,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 100 [2022-11-23 15:25:07,098 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:25:07,099 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 118 treesize of output 100 [2022-11-23 15:25:07,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-11-23 15:25:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:25:07,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:25:08,031 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 [2022-11-23 15:25:08,042 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 [2022-11-23 15:25:08,351 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 [2022-11-23 15:25:08,377 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 [2022-11-23 15:25:08,431 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 [2022-11-23 15:25:18,049 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:25:18,050 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 [2022-11-23 15:25:18,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:18,075 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 [2022-11-23 15:25:18,095 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 [2022-11-23 15:25:18,120 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 [2022-11-23 15:25:18,136 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 [2022-11-23 15:25:18,158 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 [2022-11-23 15:25:26,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-23 15:25:26,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050438436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:25:26,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975895133] [2022-11-23 15:25:26,627 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-23 15:25:26,627 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:25:26,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:25:26,628 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:25:26,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:25:26,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:25:26,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:25:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:25:26,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:25:26,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:25:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:25:26,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:25:26,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:25:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,958 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 [2022-11-23 15:25:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:26,986 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 [2022-11-23 15:25:27,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:25:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,149 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 15:25:27,149 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 [2022-11-23 15:25:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,193 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 [2022-11-23 15:25:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-23 15:25:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:27,370 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:25:27,370 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 [2022-11-23 15:25:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,508 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-23 15:25:27,509 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 [2022-11-23 15:25:27,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-11-23 15:25:27,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,751 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 [2022-11-23 15:25:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:27,890 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-23 15:25:27,890 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 [2022-11-23 15:25:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,940 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 15:25:27,941 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 [2022-11-23 15:25:27,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:27,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:25:28,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,099 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-23 15:25:28,100 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 [2022-11-23 15:25:28,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,149 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 [2022-11-23 15:25:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-23 15:25:28,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,400 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:25:28,400 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 [2022-11-23 15:25:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,458 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 [2022-11-23 15:25:28,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:25:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:28,798 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-23 15:25:28,799 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 [2022-11-23 15:25:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,884 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 [2022-11-23 15:25:28,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:28,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:25:29,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,174 INFO L217 Elim1Store]: Index analysis took 116 ms [2022-11-23 15:25:29,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 66 [2022-11-23 15:25:29,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,434 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-11-23 15:25:29,434 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 [2022-11-23 15:25:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,514 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 [2022-11-23 15:25:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:25:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:29,864 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-11-23 15:25:29,864 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 [2022-11-23 15:25:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:29,967 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 [2022-11-23 15:25:29,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,000 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 [2022-11-23 15:25:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:25:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:30,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:30,596 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-11-23 15:25:30,597 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 [2022-11-23 15:25:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,682 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 [2022-11-23 15:25:30,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:30,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,251 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-11-23 15:25:31,252 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 [2022-11-23 15:25:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:31,608 INFO L321 Elim1Store]: treesize reduction 226, result has 15.7 percent of original size [2022-11-23 15:25:31,608 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 [2022-11-23 15:25:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:31,656 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 [2022-11-23 15:25:32,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,413 INFO L321 Elim1Store]: treesize reduction 262, result has 12.1 percent of original size [2022-11-23 15:25:32,413 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 [2022-11-23 15:25:32,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:32,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:32,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:32,936 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-11-23 15:25:32,937 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 [2022-11-23 15:25:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:33,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:33,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:33,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:33,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,406 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-11-23 15:25:33,407 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 [2022-11-23 15:25:33,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:33,585 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-23 15:25:33,586 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 [2022-11-23 15:25:34,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,321 INFO L321 Elim1Store]: treesize reduction 170, result has 12.4 percent of original size [2022-11-23 15:25:34,322 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 [2022-11-23 15:25:34,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,389 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 [2022-11-23 15:25:34,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:34,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:34,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:35,359 INFO L321 Elim1Store]: treesize reduction 630, result has 14.6 percent of original size [2022-11-23 15:25:35,359 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 [2022-11-23 15:25:35,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:35,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:35,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:35,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:35,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:36,993 INFO L321 Elim1Store]: treesize reduction 692, result has 14.8 percent of original size [2022-11-23 15:25:36,993 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 [2022-11-23 15:25:37,174 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-23 15:25:37,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:37,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:37,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:25:38,826 INFO L321 Elim1Store]: treesize reduction 1120, result has 14.6 percent of original size [2022-11-23 15:25:38,827 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 [2022-11-23 15:25:39,068 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:25:39,069 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 [2022-11-23 15:25:40,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:25:40,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:25:40,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:25:41,084 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:25:41,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 15:25:41,212 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:25:41,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:25:41,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:25:41,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:25:41,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:25:41,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:25:41,396 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:25:41,397 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 [2022-11-23 15:25:41,416 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-23 15:25:41,433 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 [2022-11-23 15:25:41,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:25:42,983 INFO L321 Elim1Store]: treesize reduction 272, result has 41.8 percent of original size [2022-11-23 15:25:42,984 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 [2022-11-23 15:25:44,561 INFO L321 Elim1Store]: treesize reduction 220, result has 40.7 percent of original size [2022-11-23 15:25:44,562 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 [2022-11-23 15:26:24,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:26:24,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:26:24,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:26:24,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:26:24,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:26:24,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:26:24,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:26:24,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:26:24,948 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:26:24,948 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 [2022-11-23 15:26:25,101 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-23 15:26:25,101 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 [2022-11-23 15:26:25,116 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 [2022-11-23 15:26:25,151 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:26:43,733 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23336#(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 [2022-11-23 15:26:43,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:26:43,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:26:43,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 16] total 39 [2022-11-23 15:26:43,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834947784] [2022-11-23 15:26:43,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:26:43,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-23 15:26:43,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:43,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-23 15:26:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=3680, Unknown=53, NotChecked=650, Total=4830 [2022-11-23 15:26:43,736 INFO L87 Difference]: Start difference. First operand 424 states and 513 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) [2022-11-23 15:26:51,769 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)) (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1783))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)) (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|))) (let ((.cse4 (select .cse7 .cse1))) (let ((.cse3 (= (select |c_#valid| .cse4) 1)) (.cse5 (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse4)))) (or (and .cse3 (= .cse4 |c_ULTIMATE.start_main_~end~0#1.base|) (exists ((v_arrayElimCell_829 Int)) (and (not (= .cse4 v_arrayElimCell_829)) (not (= |c_ULTIMATE.start_main_~list~0#1.base| v_arrayElimCell_829)) (= (select |c_#valid| v_arrayElimCell_829) 1))) .cse5) (and .cse3 (exists ((|v_ULTIMATE.start_main_~end~0#1.offset_155| Int)) (let ((.cse6 (select .cse7 |v_ULTIMATE.start_main_~end~0#1.offset_155|))) (and (not (= .cse4 .cse6)) (= (select |c_#valid| .cse6) 1) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse6) (not (= |c_ULTIMATE.start_main_~list~0#1.base| .cse6))))) .cse5))))))) is different from false [2022-11-23 15:26:54,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 15:26:57,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 15:26:59,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 15:27:03,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 15:27:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:10,619 INFO L93 Difference]: Finished difference Result 851 states and 1002 transitions. [2022-11-23 15:27:10,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-23 15:27:10,620 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 [2022-11-23 15:27:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:10,622 INFO L225 Difference]: With dead ends: 851 [2022-11-23 15:27:10,622 INFO L226 Difference]: Without dead ends: 851 [2022-11-23 15:27:10,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 87 SyntacticMatches, 6 SemanticMatches, 92 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2837 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=856, Invalid=6752, Unknown=72, NotChecked=1062, Total=8742 [2022-11-23 15:27:10,625 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 879 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 70 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 4193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 1612 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:10,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1799 Invalid, 4193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2486 Invalid, 25 Unknown, 1612 Unchecked, 20.7s Time] [2022-11-23 15:27:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-11-23 15:27:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 491. [2022-11-23 15:27:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 466 states have (on average 1.3261802575107295) internal successors, (618), 490 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:27:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2022-11-23 15:27:10,636 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 47 [2022-11-23 15:27:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:10,636 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2022-11-23 15:27:10,637 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) [2022-11-23 15:27:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2022-11-23 15:27:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:27:10,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:10,638 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] [2022-11-23 15:27:10,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:10,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-11-23 15:27:10,844 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)] === [2022-11-23 15:27:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash -157749318, now seen corresponding path program 1 times [2022-11-23 15:27:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:10,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096366563] [2022-11-23 15:27:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:14,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:27:14,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:14,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096366563] [2022-11-23 15:27:14,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096366563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:27:14,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86363814] [2022-11-23 15:27:14,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:14,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:14,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:27:14,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:27:14,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 15:27:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:27:15,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-23 15:27:15,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:15,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:27:15,516 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:27:15,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:27:15,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:27:15,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:27:15,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:27:16,372 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:27:16,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 54 [2022-11-23 15:27:16,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-23 15:27:16,793 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:27:16,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 54 [2022-11-23 15:27:16,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-23 15:27:17,620 INFO L321 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-11-23 15:27:17,621 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 [2022-11-23 15:27:17,766 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-23 15:27:17,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-11-23 15:27:18,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:27:18,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:18,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2022-11-23 15:27:18,872 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:27:18,872 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 [2022-11-23 15:27:18,925 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 [2022-11-23 15:27:19,491 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:27:19,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 49 [2022-11-23 15:27:19,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:19,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 15:27:20,281 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:27:20,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2022-11-23 15:27:20,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-23 15:27:21,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:21,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2022-11-23 15:27:21,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:21,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 15:27:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:27:21,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:27:22,663 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 [2022-11-23 15:27:22,854 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 [2022-11-23 15:27:22,895 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 [2022-11-23 15:27:22,936 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 [2022-11-23 15:27:22,989 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|))) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse1 (store |c_#memory_$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_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1922) (select (select (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#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|) .cse2) 8))) (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 ((.cse4 (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1923))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1922) .cse3 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 12) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))))) is different from false [2022-11-23 15:27:49,174 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:49,175 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 [2022-11-23 15:27:49,200 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:49,200 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 [2022-11-23 15:27:49,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,217 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 [2022-11-23 15:27:49,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,235 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 [2022-11-23 15:27:49,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,269 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 [2022-11-23 15:27:49,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,287 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 [2022-11-23 15:27:49,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,302 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 [2022-11-23 15:27:49,324 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 [2022-11-23 15:27:49,464 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:49,464 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 [2022-11-23 15:27:49,489 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:49,489 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 [2022-11-23 15:27:49,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,511 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 [2022-11-23 15:27:49,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,557 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 [2022-11-23 15:27:49,606 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 [2022-11-23 15:27:49,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,643 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 [2022-11-23 15:27:49,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,680 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 [2022-11-23 15:27:49,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,721 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 [2022-11-23 15:27:49,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,778 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 [2022-11-23 15:27:49,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,814 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 [2022-11-23 15:27:49,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:49,865 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 [2022-11-23 15:28:36,809 WARN L233 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:28:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:28:43,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86363814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:28:43,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2122087252] [2022-11-23 15:28:43,264 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-23 15:28:43,264 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:28:43,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:28:43,265 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:28:43,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:28:43,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:28:43,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:28:43,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:28:43,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:28:43,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:28:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:28:43,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:28:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:28:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,566 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 [2022-11-23 15:28:43,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:28:43,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,618 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 [2022-11-23 15:28:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,750 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 15:28:43,751 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 [2022-11-23 15:28:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,787 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 [2022-11-23 15:28:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-23 15:28:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:43,929 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:28:43,930 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 [2022-11-23 15:28:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:43,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,023 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-23 15:28:44,024 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 [2022-11-23 15:28:44,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-23 15:28:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2022-11-23 15:28:44,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:28:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,376 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-23 15:28:44,376 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 [2022-11-23 15:28:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,441 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 [2022-11-23 15:28:44,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,566 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-23 15:28:44,567 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 [2022-11-23 15:28:44,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,612 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 [2022-11-23 15:28:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,638 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 [2022-11-23 15:28:44,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:44,847 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:28:44,847 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 [2022-11-23 15:28:44,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,954 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-23 15:28:44,955 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 [2022-11-23 15:28:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:44,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:28:45,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,218 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-23 15:28:45,219 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 [2022-11-23 15:28:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,284 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 [2022-11-23 15:28:45,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 15:28:45,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 66 [2022-11-23 15:28:45,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:28:45,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,714 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-11-23 15:28:45,715 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 [2022-11-23 15:28:45,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,785 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 [2022-11-23 15:28:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:45,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:45,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:46,031 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-11-23 15:28:46,031 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 [2022-11-23 15:28:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,120 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 [2022-11-23 15:28:46,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,148 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 [2022-11-23 15:28:46,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:46,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:46,743 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-11-23 15:28:46,744 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 [2022-11-23 15:28:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,833 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 [2022-11-23 15:28:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:46,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 15:28:47,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,432 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-11-23 15:28:47,433 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 [2022-11-23 15:28:47,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:47,884 INFO L321 Elim1Store]: treesize reduction 242, result has 14.8 percent of original size [2022-11-23 15:28:47,884 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 [2022-11-23 15:28:47,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:47,936 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 880 treesize of output 859 [2022-11-23 15:28:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,077 INFO L321 Elim1Store]: treesize reduction 406, result has 10.8 percent of original size [2022-11-23 15:28:50,077 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 [2022-11-23 15:28:50,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:50,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:50,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:50,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:50,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,005 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-11-23 15:28:51,005 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 [2022-11-23 15:28:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:51,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:51,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,645 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-11-23 15:28:51,646 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 [2022-11-23 15:28:51,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:51,805 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-23 15:28:51,806 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 [2022-11-23 15:28:52,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,722 INFO L321 Elim1Store]: treesize reduction 166, result has 14.4 percent of original size [2022-11-23 15:28:52,723 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 [2022-11-23 15:28:52,901 INFO L217 Elim1Store]: Index analysis took 137 ms [2022-11-23 15:28:52,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:52,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:52,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:53,914 INFO L321 Elim1Store]: treesize reduction 654, result has 16.8 percent of original size [2022-11-23 15:28:53,915 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 [2022-11-23 15:28:53,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:53,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:53,979 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 [2022-11-23 15:28:55,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:55,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:55,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:55,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:55,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:56,411 INFO L321 Elim1Store]: treesize reduction 696, result has 14.3 percent of original size [2022-11-23 15:28:56,412 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 [2022-11-23 15:28:56,605 INFO L217 Elim1Store]: Index analysis took 140 ms [2022-11-23 15:28:56,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:56,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:56,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:58,374 INFO L321 Elim1Store]: treesize reduction 1132, result has 13.7 percent of original size [2022-11-23 15:28:58,375 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 [2022-11-23 15:28:58,641 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-23 15:28:58,642 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 [2022-11-23 15:29:03,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:29:03,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:29:03,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:29:03,459 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:29:03,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 15:29:03,589 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:29:03,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:29:03,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:29:03,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:29:03,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 15:29:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:03,749 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:29:03,750 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 [2022-11-23 15:29:03,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-23 15:29:03,782 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 [2022-11-23 15:29:04,661 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:29:04,661 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 [2022-11-23 15:29:05,714 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-23 15:29:05,714 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 [2022-11-23 15:29:06,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:29:06,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 15:29:06,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:29:06,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:29:06,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:29:06,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:29:06,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:29:06,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:29:06,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:29:06,523 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-23 15:29:06,523 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 [2022-11-23 15:29:06,682 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-23 15:29:06,682 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 [2022-11-23 15:29:06,698 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 [2022-11-23 15:29:06,738 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:29:28,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25081#(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 [2022-11-23 15:29:28,050 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:29:28,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:29:28,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 44 [2022-11-23 15:29:28,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763891256] [2022-11-23 15:29:28,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:29:28,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-23 15:29:28,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:29:28,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-23 15:29:28,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=4305, Unknown=27, NotChecked=700, Total=5550 [2022-11-23 15:29:28,053 INFO L87 Difference]: Start difference. First operand 491 states and 618 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) [2022-11-23 15:29:43,375 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$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 [2022-11-23 15:30:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:09,573 INFO L93 Difference]: Finished difference Result 964 states and 1132 transitions. [2022-11-23 15:30:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-23 15:30:09,573 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 [2022-11-23 15:30:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:09,578 INFO L225 Difference]: With dead ends: 964 [2022-11-23 15:30:09,578 INFO L226 Difference]: Without dead ends: 964 [2022-11-23 15:30:09,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 119 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 4965 ImplicationChecksByTransitivity, 89.4s TimeCoverageRelationStatistics Valid=1428, Invalid=11665, Unknown=41, NotChecked=1386, Total=14520 [2022-11-23 15:30:09,579 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1971 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 3277 mSolverCounterSat, 145 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 4632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 3277 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 1206 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:09,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2187 Invalid, 4632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 3277 Invalid, 4 Unknown, 1206 Unchecked, 20.3s Time] [2022-11-23 15:30:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-11-23 15:30:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 510. [2022-11-23 15:30:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 486 states have (on average 1.3024691358024691) internal successors, (633), 509 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:30:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 633 transitions. [2022-11-23 15:30:09,602 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 633 transitions. Word has length 47 [2022-11-23 15:30:09,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:09,603 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 633 transitions. [2022-11-23 15:30:09,603 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) [2022-11-23 15:30:09,603 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 633 transitions. [2022-11-23 15:30:09,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:30:09,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:09,604 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] [2022-11-23 15:30:09,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:30:09,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-11-23 15:30:09,811 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)] === [2022-11-23 15:30:09,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash 149362287, now seen corresponding path program 1 times [2022-11-23 15:30:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:09,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565419554] [2022-11-23 15:30:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:30:11,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565419554] [2022-11-23 15:30:11,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565419554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:11,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:11,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 15:30:11,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153151368] [2022-11-23 15:30:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:11,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 15:30:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:11,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 15:30:11,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 15:30:11,262 INFO L87 Difference]: Start difference. First operand 510 states and 633 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) [2022-11-23 15:30:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:15,335 INFO L93 Difference]: Finished difference Result 546 states and 661 transitions. [2022-11-23 15:30:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:30:15,335 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 [2022-11-23 15:30:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:15,336 INFO L225 Difference]: With dead ends: 546 [2022-11-23 15:30:15,337 INFO L226 Difference]: Without dead ends: 546 [2022-11-23 15:30:15,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:30:15,337 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 356 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:15,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 491 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-23 15:30:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-11-23 15:30:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 510. [2022-11-23 15:30:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 486 states have (on average 1.300411522633745) internal successors, (632), 509 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:30:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 632 transitions. [2022-11-23 15:30:15,347 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 632 transitions. Word has length 47 [2022-11-23 15:30:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:15,348 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 632 transitions. [2022-11-23 15:30:15,348 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) [2022-11-23 15:30:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 632 transitions. [2022-11-23 15:30:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 15:30:15,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:15,349 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] [2022-11-23 15:30:15,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-23 15:30:15,350 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)] === [2022-11-23 15:30:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -158598594, now seen corresponding path program 1 times [2022-11-23 15:30:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:15,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508564676] [2022-11-23 15:30:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:30:15,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:15,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508564676] [2022-11-23 15:30:15,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508564676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:15,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:15,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:30:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312470900] [2022-11-23 15:30:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:15,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:30:15,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:30:15,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:30:15,722 INFO L87 Difference]: Start difference. First operand 510 states and 632 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) [2022-11-23 15:30:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:16,716 INFO L93 Difference]: Finished difference Result 517 states and 637 transitions. [2022-11-23 15:30:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:30:16,716 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 [2022-11-23 15:30:16,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:16,719 INFO L225 Difference]: With dead ends: 517 [2022-11-23 15:30:16,719 INFO L226 Difference]: Without dead ends: 517 [2022-11-23 15:30:16,720 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 [2022-11-23 15:30:16,720 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:16,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 15:30:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-11-23 15:30:16,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 507. [2022-11-23 15:30:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 483 states have (on average 1.300207039337474) internal successors, (628), 506 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:30:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 628 transitions. [2022-11-23 15:30:16,730 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 628 transitions. Word has length 48 [2022-11-23 15:30:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:16,731 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 628 transitions. [2022-11-23 15:30:16,731 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) [2022-11-23 15:30:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 628 transitions. [2022-11-23 15:30:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-23 15:30:16,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:16,732 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] [2022-11-23 15:30:16,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-23 15:30:16,733 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)] === [2022-11-23 15:30:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1273232135, now seen corresponding path program 1 times [2022-11-23 15:30:16,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:16,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436973366] [2022-11-23 15:30:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:30:21,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:21,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436973366] [2022-11-23 15:30:21,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436973366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:30:21,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932435469] [2022-11-23 15:30:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:21,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:21,578 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:30:21,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd95bf7e-b219-453a-b0a5-c33d30d26f66/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 15:30:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:21,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-23 15:30:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:21,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 15:30:22,195 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:30:22,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:30:22,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:30:22,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:30:23,106 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:30:23,107 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 [2022-11-23 15:30:23,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-23 15:30:23,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:23,587 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:30:23,587 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 [2022-11-23 15:30:23,601 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 [2022-11-23 15:30:24,941 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-23 15:30:24,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-11-23 15:30:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:25,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:25,293 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 15:30:25,293 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 [2022-11-23 15:30:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:25,337 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 [2022-11-23 15:30:26,352 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-23 15:30:26,352 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 [2022-11-23 15:30:26,400 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 [2022-11-23 15:30:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:27,076 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 [2022-11-23 15:30:27,197 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-23 15:30:27,197 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 [2022-11-23 15:30:28,152 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-23 15:30:28,153 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 [2022-11-23 15:30:28,180 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 [2022-11-23 15:30:30,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:30,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:30,731 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-23 15:30:30,731 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 [2022-11-23 15:30:30,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:30,794 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-23 15:30:30,794 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 [2022-11-23 15:30:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:30:30,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:30:32,608 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 [2022-11-23 15:30:32,664 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 [2022-11-23 15:30:32,731 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 [2022-11-23 15:30:32,799 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 [2022-11-23 15:30:55,248 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:30:55,249 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1224 treesize of output 1035 [2022-11-23 15:30:55,280 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:30:55,280 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 [2022-11-23 15:30:55,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:55,452 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:30:55,453 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 [2022-11-23 15:30:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:55,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:55,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:56,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:58,136 INFO L321 Elim1Store]: treesize reduction 301, result has 50.7 percent of original size [2022-11-23 15:30:58,142 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 [2022-11-23 15:31:02,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:02,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:31:04,853 INFO L321 Elim1Store]: treesize reduction 36, result has 85.5 percent of original size [2022-11-23 15:31:04,859 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 [2022-11-23 15:31:45,375 WARN L233 SmtUtils]: Spent 40.51s 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) [2022-11-23 15:31:48,326 INFO L217 Elim1Store]: Index analysis took 149 ms [2022-11-23 15:31:49,256 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:31:49,262 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 [2022-11-23 15:31:52,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:31:52,480 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 [2022-11-23 15:32:11,813 WARN L233 SmtUtils]: Spent 19.33s 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) [2022-11-23 15:33:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:51,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:51,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:51,520 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 [2022-11-23 15:33:51,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:51,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:51,969 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-23 15:33:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:52,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:59,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:59,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:59,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:59,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:34:00,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:34:00,144 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 [2022-11-23 15:34:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:34:01,225 INFO L173 IndexEqualityManager]: detected equality via solver