./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:36:23,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:36:23,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:36:23,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:36:23,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:36:23,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:36:23,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:36:23,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:36:23,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:36:23,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:36:23,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:36:23,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:36:23,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:36:23,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:36:23,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:36:23,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:36:23,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:36:23,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:36:23,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:36:23,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:36:23,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:36:23,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:36:23,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:36:23,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:36:23,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:36:23,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:36:23,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:36:23,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:36:23,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:36:23,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:36:23,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:36:23,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:36:23,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:36:23,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:36:23,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:36:23,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:36:23,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:36:23,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:36:23,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:36:23,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:36:23,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:36:23,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:36:23,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:36:23,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:36:23,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:36:23,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:36:23,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:36:23,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:36:23,344 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:36:23,344 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:36:23,344 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:36:23,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:36:23,346 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:36:23,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:36:23,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:36:23,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:36:23,347 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:36:23,347 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:36:23,347 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:36:23,348 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:36:23,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:36:23,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:36:23,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:36:23,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:36:23,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:36:23,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:36:23,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:36:23,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:36:23,351 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:36:23,351 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:36:23,351 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:36:23,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:36:23,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:36:23,352 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:36:23,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:36:23,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:36:23,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:36:23,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:23,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:36:23,354 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:36:23,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:36:23,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:36:23,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:36:23,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:36:23,355 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d [2022-11-26 00:36:23,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:36:23,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:36:23,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:36:23,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:36:23,712 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:36:23,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/forester-heap/sll-01-1.i [2022-11-26 00:36:26,827 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:36:27,154 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:36:27,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i [2022-11-26 00:36:27,168 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/data/87550f138/5f88aa4f8ee54467a507f95ce30ebe70/FLAG6debd5c70 [2022-11-26 00:36:27,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/data/87550f138/5f88aa4f8ee54467a507f95ce30ebe70 [2022-11-26 00:36:27,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:36:27,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:36:27,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:27,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:36:27,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:36:27,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8397399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27, skipping insertion in model container [2022-11-26 00:36:27,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:36:27,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:36:27,640 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2022-11-26 00:36:27,657 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2022-11-26 00:36:27,660 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2022-11-26 00:36:27,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2022-11-26 00:36:27,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2022-11-26 00:36:27,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2022-11-26 00:36:27,675 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2022-11-26 00:36:27,677 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2022-11-26 00:36:27,679 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2022-11-26 00:36:27,682 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2022-11-26 00:36:27,686 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2022-11-26 00:36:27,687 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2022-11-26 00:36:27,689 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2022-11-26 00:36:27,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:27,712 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:36:27,768 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2022-11-26 00:36:27,771 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2022-11-26 00:36:27,775 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2022-11-26 00:36:27,776 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2022-11-26 00:36:27,778 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2022-11-26 00:36:27,779 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2022-11-26 00:36:27,781 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2022-11-26 00:36:27,782 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2022-11-26 00:36:27,783 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2022-11-26 00:36:27,784 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2022-11-26 00:36:27,785 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2022-11-26 00:36:27,786 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2022-11-26 00:36:27,787 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_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2022-11-26 00:36:27,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:27,814 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:36:27,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27 WrapperNode [2022-11-26 00:36:27,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:27,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:27,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:36:27,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:36:27,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,863 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 227 [2022-11-26 00:36:27,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:27,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:36:27,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:36:27,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:36:27,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:36:27,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:36:27,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:36:27,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:36:27,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (1/1) ... [2022-11-26 00:36:27,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:27,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:27,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:36:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:36:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:36:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:36:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:36:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:36:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:36:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:36:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:36:27,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:36:28,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:36:28,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:36:28,689 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:36:28,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:36:28,778 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-26 00:36:28,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:28 BoogieIcfgContainer [2022-11-26 00:36:28,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:36:28,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:36:28,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:36:28,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:36:28,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:36:27" (1/3) ... [2022-11-26 00:36:28,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513e6840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:28, skipping insertion in model container [2022-11-26 00:36:28,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:27" (2/3) ... [2022-11-26 00:36:28,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513e6840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:28, skipping insertion in model container [2022-11-26 00:36:28,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:28" (3/3) ... [2022-11-26 00:36:28,791 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-01-1.i [2022-11-26 00:36:28,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:36:28,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-26 00:36:28,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:36:28,885 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;@7fb0e1a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:36:28,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-26 00:36:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:28,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:36:28,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:28,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:36:28,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:28,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash 14698, now seen corresponding path program 1 times [2022-11-26 00:36:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:28,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251090060] [2022-11-26 00:36:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:28,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:29,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:29,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251090060] [2022-11-26 00:36:29,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251090060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:29,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:29,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:36:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389441370] [2022-11-26 00:36:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:29,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:29,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:29,251 INFO L87 Difference]: Start difference. First operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:29,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:29,489 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2022-11-26 00:36:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:29,492 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 [2022-11-26 00:36:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:29,507 INFO L225 Difference]: With dead ends: 169 [2022-11-26 00:36:29,507 INFO L226 Difference]: Without dead ends: 167 [2022-11-26 00:36:29,509 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 [2022-11-26 00:36:29,513 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 161 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:29,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 91 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:29,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-26 00:36:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2022-11-26 00:36:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 93 states have (on average 1.8709677419354838) internal successors, (174), 162 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 174 transitions. [2022-11-26 00:36:29,586 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 174 transitions. Word has length 2 [2022-11-26 00:36:29,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:29,587 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 174 transitions. [2022-11-26 00:36:29,587 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) [2022-11-26 00:36:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 174 transitions. [2022-11-26 00:36:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 00:36:29,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:29,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 00:36:29,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:36:29,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:29,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:29,589 INFO L85 PathProgramCache]: Analyzing trace with hash 14699, now seen corresponding path program 1 times [2022-11-26 00:36:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:29,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257217621] [2022-11-26 00:36:29,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:29,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:29,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:29,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:29,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257217621] [2022-11-26 00:36:29,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257217621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:29,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:29,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:36:29,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13854873] [2022-11-26 00:36:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:29,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:29,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:29,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:29,738 INFO L87 Difference]: Start difference. First operand 163 states and 174 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:29,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:29,926 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2022-11-26 00:36:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:29,926 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 [2022-11-26 00:36:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:29,931 INFO L225 Difference]: With dead ends: 190 [2022-11-26 00:36:29,931 INFO L226 Difference]: Without dead ends: 190 [2022-11-26 00:36:29,932 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 [2022-11-26 00:36:29,933 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 152 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:29,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 117 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:29,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-26 00:36:29,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 171. [2022-11-26 00:36:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 108 states have (on average 1.787037037037037) internal successors, (193), 170 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 193 transitions. [2022-11-26 00:36:29,953 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 193 transitions. Word has length 2 [2022-11-26 00:36:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:29,954 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 193 transitions. [2022-11-26 00:36:29,954 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) [2022-11-26 00:36:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 193 transitions. [2022-11-26 00:36:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:36:29,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:29,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:36:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:36:29,956 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:29,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash 14124170, now seen corresponding path program 1 times [2022-11-26 00:36:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:29,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096604776] [2022-11-26 00:36:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:29,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:29,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096604776] [2022-11-26 00:36:29,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096604776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:29,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:29,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:36:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070386244] [2022-11-26 00:36:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:29,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:29,997 INFO L87 Difference]: Start difference. First operand 171 states and 193 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:30,099 INFO L93 Difference]: Finished difference Result 186 states and 196 transitions. [2022-11-26 00:36:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:36:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:30,101 INFO L225 Difference]: With dead ends: 186 [2022-11-26 00:36:30,101 INFO L226 Difference]: Without dead ends: 186 [2022-11-26 00:36:30,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:30,102 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:30,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 154 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:30,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-26 00:36:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 169. [2022-11-26 00:36:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 168 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2022-11-26 00:36:30,111 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 4 [2022-11-26 00:36:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:30,112 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2022-11-26 00:36:30,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2022-11-26 00:36:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:36:30,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:30,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:30,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:36:30,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:30,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash -106303121, now seen corresponding path program 1 times [2022-11-26 00:36:30,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:30,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544018390] [2022-11-26 00:36:30,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:30,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:30,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544018390] [2022-11-26 00:36:30,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544018390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:30,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:30,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:30,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469381525] [2022-11-26 00:36:30,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:30,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:30,357 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:30,645 INFO L93 Difference]: Finished difference Result 168 states and 189 transitions. [2022-11-26 00:36:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:36:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:30,646 INFO L225 Difference]: With dead ends: 168 [2022-11-26 00:36:30,646 INFO L226 Difference]: Without dead ends: 168 [2022-11-26 00:36:30,647 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 [2022-11-26 00:36:30,650 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:30,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 409 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-26 00:36:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-26 00:36:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 107 states have (on average 1.766355140186916) internal successors, (189), 167 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2022-11-26 00:36:30,675 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 9 [2022-11-26 00:36:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:30,676 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2022-11-26 00:36:30,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2022-11-26 00:36:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:36:30,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:30,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:30,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:36:30,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:30,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -106303120, now seen corresponding path program 1 times [2022-11-26 00:36:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:30,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228912672] [2022-11-26 00:36:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:30,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:30,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228912672] [2022-11-26 00:36:30,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228912672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:30,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:30,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:30,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553370652] [2022-11-26 00:36:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:30,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:30,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:30,997 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:31,223 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2022-11-26 00:36:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:36:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:31,225 INFO L225 Difference]: With dead ends: 167 [2022-11-26 00:36:31,225 INFO L226 Difference]: Without dead ends: 167 [2022-11-26 00:36:31,225 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 [2022-11-26 00:36:31,226 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:31,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 420 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-26 00:36:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-11-26 00:36:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 107 states have (on average 1.7570093457943925) internal successors, (188), 166 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 188 transitions. [2022-11-26 00:36:31,236 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 188 transitions. Word has length 9 [2022-11-26 00:36:31,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:31,236 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 188 transitions. [2022-11-26 00:36:31,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,236 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 188 transitions. [2022-11-26 00:36:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:36:31,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:31,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:31,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:36:31,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 922299713, now seen corresponding path program 1 times [2022-11-26 00:36:31,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:31,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39972908] [2022-11-26 00:36:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:31,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:31,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:31,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39972908] [2022-11-26 00:36:31,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39972908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:31,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:31,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:36:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148986313] [2022-11-26 00:36:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:31,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:36:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:31,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:36:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:36:31,514 INFO L87 Difference]: Start difference. First operand 167 states and 188 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:31,854 INFO L93 Difference]: Finished difference Result 167 states and 187 transitions. [2022-11-26 00:36:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:36:31,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:36:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:31,855 INFO L225 Difference]: With dead ends: 167 [2022-11-26 00:36:31,855 INFO L226 Difference]: Without dead ends: 167 [2022-11-26 00:36:31,855 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 [2022-11-26 00:36:31,856 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 145 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:31,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 431 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:36:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-26 00:36:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2022-11-26 00:36:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2022-11-26 00:36:31,860 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2022-11-26 00:36:31,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:31,861 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2022-11-26 00:36:31,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:31,861 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2022-11-26 00:36:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:36:31,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:31,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:36:31,862 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash 922299714, now seen corresponding path program 1 times [2022-11-26 00:36:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117821568] [2022-11-26 00:36:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:32,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:32,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:32,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117821568] [2022-11-26 00:36:32,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117821568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:32,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:32,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:36:32,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300563726] [2022-11-26 00:36:32,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:32,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:36:32,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:32,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:36:32,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:36:32,134 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:32,616 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2022-11-26 00:36:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:36:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:36:32,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:32,618 INFO L225 Difference]: With dead ends: 166 [2022-11-26 00:36:32,618 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:36:32,618 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 [2022-11-26 00:36:32,619 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 142 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:32,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 431 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:36:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:36:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2022-11-26 00:36:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2022-11-26 00:36:32,625 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 11 [2022-11-26 00:36:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:32,625 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2022-11-26 00:36:32,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2022-11-26 00:36:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:36:32,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:32,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:32,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:36:32,631 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:32,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:32,631 INFO L85 PathProgramCache]: Analyzing trace with hash 402977103, now seen corresponding path program 1 times [2022-11-26 00:36:32,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:32,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674492868] [2022-11-26 00:36:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:32,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674492868] [2022-11-26 00:36:32,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674492868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:32,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:32,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:32,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401450185] [2022-11-26 00:36:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:32,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:32,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:32,669 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:32,718 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2022-11-26 00:36:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:36:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:32,719 INFO L225 Difference]: With dead ends: 166 [2022-11-26 00:36:32,719 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:36:32,720 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 [2022-11-26 00:36:32,721 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:32,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:36:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:36:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-26 00:36:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2022-11-26 00:36:32,727 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2022-11-26 00:36:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:32,727 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2022-11-26 00:36:32,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2022-11-26 00:36:32,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:36:32,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:32,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:32,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:36:32,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:32,730 INFO L85 PathProgramCache]: Analyzing trace with hash -392184971, now seen corresponding path program 1 times [2022-11-26 00:36:32,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:32,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273904067] [2022-11-26 00:36:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:32,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:32,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:32,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273904067] [2022-11-26 00:36:32,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273904067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:32,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:32,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:32,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677352115] [2022-11-26 00:36:32,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:32,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:32,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:32,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:32,858 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:33,038 INFO L93 Difference]: Finished difference Result 246 states and 272 transitions. [2022-11-26 00:36:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:36:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:33,040 INFO L225 Difference]: With dead ends: 246 [2022-11-26 00:36:33,040 INFO L226 Difference]: Without dead ends: 246 [2022-11-26 00:36:33,040 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 [2022-11-26 00:36:33,042 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:33,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 386 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-26 00:36:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 163. [2022-11-26 00:36:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.7358490566037736) internal successors, (184), 162 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2022-11-26 00:36:33,049 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 12 [2022-11-26 00:36:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:33,050 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2022-11-26 00:36:33,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2022-11-26 00:36:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:36:33,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:33,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:33,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:36:33,052 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:33,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -975517286, now seen corresponding path program 1 times [2022-11-26 00:36:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:33,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599583623] [2022-11-26 00:36:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:33,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:33,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:33,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599583623] [2022-11-26 00:36:33,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599583623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:33,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:33,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603395712] [2022-11-26 00:36:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:33,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:36:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:36:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:36:33,190 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:33,334 INFO L93 Difference]: Finished difference Result 246 states and 271 transitions. [2022-11-26 00:36:33,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:33,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-26 00:36:33,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:33,335 INFO L225 Difference]: With dead ends: 246 [2022-11-26 00:36:33,335 INFO L226 Difference]: Without dead ends: 246 [2022-11-26 00:36:33,335 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 [2022-11-26 00:36:33,336 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:33,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 340 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-26 00:36:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 165. [2022-11-26 00:36:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2022-11-26 00:36:33,344 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 15 [2022-11-26 00:36:33,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:33,347 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2022-11-26 00:36:33,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2022-11-26 00:36:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:36:33,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:33,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:33,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:36:33,350 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash -635957056, now seen corresponding path program 1 times [2022-11-26 00:36:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:33,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511359614] [2022-11-26 00:36:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:33,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:33,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511359614] [2022-11-26 00:36:33,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511359614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:33,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:33,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136266302] [2022-11-26 00:36:33,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:36:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:36:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:33,571 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:33,836 INFO L93 Difference]: Finished difference Result 219 states and 232 transitions. [2022-11-26 00:36:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:33,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:36:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:33,837 INFO L225 Difference]: With dead ends: 219 [2022-11-26 00:36:33,837 INFO L226 Difference]: Without dead ends: 219 [2022-11-26 00:36:33,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:36:33,838 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 595 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:33,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 144 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-26 00:36:33,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 184. [2022-11-26 00:36:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.7165354330708662) internal successors, (218), 183 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 218 transitions. [2022-11-26 00:36:33,843 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 218 transitions. Word has length 16 [2022-11-26 00:36:33,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:33,843 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 218 transitions. [2022-11-26 00:36:33,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:33,843 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 218 transitions. [2022-11-26 00:36:33,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:36:33,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:33,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:33,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:36:33,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:33,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1269325843, now seen corresponding path program 1 times [2022-11-26 00:36:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:33,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944737346] [2022-11-26 00:36:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:33,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:33,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944737346] [2022-11-26 00:36:33,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944737346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:33,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878556276] [2022-11-26 00:36:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:36:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:36:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:36:33,907 INFO L87 Difference]: Start difference. First operand 184 states and 218 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:34,058 INFO L93 Difference]: Finished difference Result 214 states and 226 transitions. [2022-11-26 00:36:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:36:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:34,060 INFO L225 Difference]: With dead ends: 214 [2022-11-26 00:36:34,060 INFO L226 Difference]: Without dead ends: 214 [2022-11-26 00:36:34,060 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 [2022-11-26 00:36:34,061 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 198 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:34,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 214 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-26 00:36:34,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 182. [2022-11-26 00:36:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 126 states have (on average 1.7063492063492063) internal successors, (215), 181 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2022-11-26 00:36:34,067 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 18 [2022-11-26 00:36:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:34,067 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2022-11-26 00:36:34,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2022-11-26 00:36:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:36:34,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:34,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:34,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:36:34,071 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029620, now seen corresponding path program 1 times [2022-11-26 00:36:34,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:34,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8332344] [2022-11-26 00:36:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:34,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:34,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:34,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8332344] [2022-11-26 00:36:34,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8332344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:34,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:34,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:34,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376457804] [2022-11-26 00:36:34,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:34,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:34,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:34,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:34,184 INFO L87 Difference]: Start difference. First operand 182 states and 215 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:34,393 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2022-11-26 00:36:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:34,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:36:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:34,394 INFO L225 Difference]: With dead ends: 171 [2022-11-26 00:36:34,394 INFO L226 Difference]: Without dead ends: 171 [2022-11-26 00:36:34,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:34,395 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 84 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:34,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 248 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-26 00:36:34,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2022-11-26 00:36:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.5952380952380953) internal successors, (201), 169 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2022-11-26 00:36:34,399 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 18 [2022-11-26 00:36:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:34,400 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2022-11-26 00:36:34,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2022-11-26 00:36:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:36:34,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:34,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:34,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:36:34,401 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029619, now seen corresponding path program 1 times [2022-11-26 00:36:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:34,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363958949] [2022-11-26 00:36:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:34,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:34,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:34,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363958949] [2022-11-26 00:36:34,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363958949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:34,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:34,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:34,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506905698] [2022-11-26 00:36:34,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:34,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:34,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:34,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:34,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:34,579 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:34,788 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2022-11-26 00:36:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:36:34,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-26 00:36:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:34,789 INFO L225 Difference]: With dead ends: 162 [2022-11-26 00:36:34,790 INFO L226 Difference]: Without dead ends: 162 [2022-11-26 00:36:34,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:34,790 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 32 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:34,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 293 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-26 00:36:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2022-11-26 00:36:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 122 states have (on average 1.5327868852459017) internal successors, (187), 156 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 187 transitions. [2022-11-26 00:36:34,794 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 187 transitions. Word has length 18 [2022-11-26 00:36:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:34,794 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 187 transitions. [2022-11-26 00:36:34,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:34,795 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 187 transitions. [2022-11-26 00:36:34,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:36:34,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:34,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:34,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:36:34,796 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 233249804, now seen corresponding path program 1 times [2022-11-26 00:36:34,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:34,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194357828] [2022-11-26 00:36:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:34,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:34,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:34,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194357828] [2022-11-26 00:36:34,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194357828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:34,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:34,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:34,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326001184] [2022-11-26 00:36:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:34,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:34,886 INFO L87 Difference]: Start difference. First operand 157 states and 187 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:35,052 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2022-11-26 00:36:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:36:35,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-26 00:36:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:35,054 INFO L225 Difference]: With dead ends: 158 [2022-11-26 00:36:35,055 INFO L226 Difference]: Without dead ends: 158 [2022-11-26 00:36:35,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:35,055 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 29 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:35,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 338 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:35,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-26 00:36:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 153. [2022-11-26 00:36:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 120 states have (on average 1.525) internal successors, (183), 152 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2022-11-26 00:36:35,062 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 20 [2022-11-26 00:36:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:35,062 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2022-11-26 00:36:35,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2022-11-26 00:36:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:36:35,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:35,063 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] [2022-11-26 00:36:35,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:36:35,064 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1038454311, now seen corresponding path program 1 times [2022-11-26 00:36:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531548838] [2022-11-26 00:36:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:35,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:35,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531548838] [2022-11-26 00:36:35,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531548838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:35,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:35,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:35,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225172880] [2022-11-26 00:36:35,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:35,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:35,101 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:35,155 INFO L93 Difference]: Finished difference Result 218 states and 263 transitions. [2022-11-26 00:36:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:35,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-26 00:36:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:35,156 INFO L225 Difference]: With dead ends: 218 [2022-11-26 00:36:35,157 INFO L226 Difference]: Without dead ends: 218 [2022-11-26 00:36:35,157 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 [2022-11-26 00:36:35,157 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 45 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:35,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 203 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:36:35,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-26 00:36:35,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 157. [2022-11-26 00:36:35,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 156 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2022-11-26 00:36:35,162 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 23 [2022-11-26 00:36:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:35,163 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2022-11-26 00:36:35,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,163 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2022-11-26 00:36:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:36:35,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:35,164 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] [2022-11-26 00:36:35,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:36:35,164 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1038456107, now seen corresponding path program 1 times [2022-11-26 00:36:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:35,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843227260] [2022-11-26 00:36:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:35,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:35,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843227260] [2022-11-26 00:36:35,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843227260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:35,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:35,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306942950] [2022-11-26 00:36:35,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:35,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:35,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:35,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:35,201 INFO L87 Difference]: Start difference. First operand 157 states and 189 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:35,257 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2022-11-26 00:36:35,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-26 00:36:35,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:35,258 INFO L225 Difference]: With dead ends: 155 [2022-11-26 00:36:35,259 INFO L226 Difference]: Without dead ends: 155 [2022-11-26 00:36:35,259 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 [2022-11-26 00:36:35,259 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 18 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:35,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 177 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-26 00:36:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-26 00:36:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 123 states have (on average 1.5121951219512195) internal successors, (186), 154 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2022-11-26 00:36:35,263 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 23 [2022-11-26 00:36:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2022-11-26 00:36:35,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2022-11-26 00:36:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:36:35,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:35,265 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] [2022-11-26 00:36:35,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:36:35,265 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:35,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2127372574, now seen corresponding path program 1 times [2022-11-26 00:36:35,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:35,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567860222] [2022-11-26 00:36:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:35,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:35,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:35,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567860222] [2022-11-26 00:36:35,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567860222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:35,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:35,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:36:35,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024593432] [2022-11-26 00:36:35,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:35,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:36:35,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:35,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:36:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:36:35,413 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:35,675 INFO L93 Difference]: Finished difference Result 246 states and 284 transitions. [2022-11-26 00:36:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:36:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:36:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:35,676 INFO L225 Difference]: With dead ends: 246 [2022-11-26 00:36:35,676 INFO L226 Difference]: Without dead ends: 246 [2022-11-26 00:36:35,677 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 [2022-11-26 00:36:35,677 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 255 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:35,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 323 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:35,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-26 00:36:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 166. [2022-11-26 00:36:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 165 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2022-11-26 00:36:35,682 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 24 [2022-11-26 00:36:35,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:35,682 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2022-11-26 00:36:35,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:35,682 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2022-11-26 00:36:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:36:35,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:35,683 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:35,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:36:35,684 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash -52715562, now seen corresponding path program 1 times [2022-11-26 00:36:35,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:35,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005444140] [2022-11-26 00:36:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:35,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:35,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005444140] [2022-11-26 00:36:35,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005444140] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:35,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829968425] [2022-11-26 00:36:35,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:35,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:35,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:35,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:35,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:36:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:36,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-26 00:36:36,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:36,089 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 [2022-11-26 00:36:36,094 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 [2022-11-26 00:36:36,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:36,189 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 [2022-11-26 00:36:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:36,212 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 [2022-11-26 00:36:36,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:36:36,392 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 [2022-11-26 00:36:36,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:36:36,401 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:36:36,401 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 [2022-11-26 00:36:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:36,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:37,027 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 [2022-11-26 00:36:37,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-26 00:36:37,044 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 [2022-11-26 00:36:37,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:37,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829968425] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:36:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1387391317] [2022-11-26 00:36:37,085 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-26 00:36:37,085 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:36:37,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:36:37,096 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:36:37,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:36:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:36:37,188 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 [2022-11-26 00:36:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,200 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 [2022-11-26 00:36:37,210 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 [2022-11-26 00:36:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,263 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 [2022-11-26 00:36:37,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,274 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 [2022-11-26 00:36:37,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:37,286 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 [2022-11-26 00:36:37,575 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:36:39,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1387391317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:39,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:36:39,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 22 [2022-11-26 00:36:39,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750610541] [2022-11-26 00:36:39,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:39,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:36:39,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:36:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:36:39,569 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:40,495 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2022-11-26 00:36:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:36:40,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-26 00:36:40,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:40,497 INFO L225 Difference]: With dead ends: 220 [2022-11-26 00:36:40,497 INFO L226 Difference]: Without dead ends: 220 [2022-11-26 00:36:40,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:36:40,498 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 92 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:40,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 311 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:36:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-26 00:36:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 188. [2022-11-26 00:36:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 156 states have (on average 1.4294871794871795) internal successors, (223), 187 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:40,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2022-11-26 00:36:40,502 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 26 [2022-11-26 00:36:40,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:40,502 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2022-11-26 00:36:40,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2022-11-26 00:36:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:36:40,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:40,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:40,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:40,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:40,710 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:40,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295682, now seen corresponding path program 1 times [2022-11-26 00:36:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:40,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262308247] [2022-11-26 00:36:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:41,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:41,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262308247] [2022-11-26 00:36:41,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262308247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:41,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:41,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:36:41,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922396528] [2022-11-26 00:36:41,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:41,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:36:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:36:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:36:41,052 INFO L87 Difference]: Start difference. First operand 188 states and 223 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:41,611 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2022-11-26 00:36:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:36:41,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-26 00:36:41,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:41,613 INFO L225 Difference]: With dead ends: 321 [2022-11-26 00:36:41,613 INFO L226 Difference]: Without dead ends: 321 [2022-11-26 00:36:41,614 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 [2022-11-26 00:36:41,614 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 512 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:41,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 488 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:36:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-26 00:36:41,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 197. [2022-11-26 00:36:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 167 states have (on average 1.3952095808383234) internal successors, (233), 196 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 233 transitions. [2022-11-26 00:36:41,620 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 233 transitions. Word has length 27 [2022-11-26 00:36:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:41,621 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 233 transitions. [2022-11-26 00:36:41,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 233 transitions. [2022-11-26 00:36:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:36:41,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:41,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:41,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:36:41,622 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:41,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295683, now seen corresponding path program 1 times [2022-11-26 00:36:41,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:41,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195343933] [2022-11-26 00:36:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:42,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:42,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195343933] [2022-11-26 00:36:42,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195343933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:42,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:42,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:36:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964685541] [2022-11-26 00:36:42,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:42,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:36:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:42,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:36:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:36:42,109 INFO L87 Difference]: Start difference. First operand 197 states and 233 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:42,982 INFO L93 Difference]: Finished difference Result 373 states and 415 transitions. [2022-11-26 00:36:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:36:42,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-26 00:36:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:42,984 INFO L225 Difference]: With dead ends: 373 [2022-11-26 00:36:42,984 INFO L226 Difference]: Without dead ends: 373 [2022-11-26 00:36:42,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:36:42,985 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 417 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:42,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 664 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:36:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-26 00:36:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 203. [2022-11-26 00:36:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 173 states have (on average 1.3872832369942196) internal successors, (240), 202 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 240 transitions. [2022-11-26 00:36:42,991 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 240 transitions. Word has length 27 [2022-11-26 00:36:42,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:42,991 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 240 transitions. [2022-11-26 00:36:42,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 240 transitions. [2022-11-26 00:36:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:36:42,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:42,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:42,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:36:42,993 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:42,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:42,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749567, now seen corresponding path program 1 times [2022-11-26 00:36:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:42,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256391230] [2022-11-26 00:36:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:42,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:43,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:43,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256391230] [2022-11-26 00:36:43,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256391230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:43,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:43,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:43,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177145230] [2022-11-26 00:36:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:43,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:43,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:43,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:43,105 INFO L87 Difference]: Start difference. First operand 203 states and 240 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:43,263 INFO L93 Difference]: Finished difference Result 202 states and 239 transitions. [2022-11-26 00:36:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:43,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-26 00:36:43,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:43,268 INFO L225 Difference]: With dead ends: 202 [2022-11-26 00:36:43,268 INFO L226 Difference]: Without dead ends: 202 [2022-11-26 00:36:43,268 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 [2022-11-26 00:36:43,268 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:43,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 301 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-26 00:36:43,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-11-26 00:36:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 173 states have (on average 1.3815028901734103) internal successors, (239), 201 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 239 transitions. [2022-11-26 00:36:43,274 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 239 transitions. Word has length 27 [2022-11-26 00:36:43,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:43,274 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 239 transitions. [2022-11-26 00:36:43,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 239 transitions. [2022-11-26 00:36:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:36:43,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:43,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:43,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:36:43,277 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749568, now seen corresponding path program 1 times [2022-11-26 00:36:43,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:43,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241809356] [2022-11-26 00:36:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:43,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:43,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:43,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:43,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241809356] [2022-11-26 00:36:43,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241809356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:43,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:43,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:36:43,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625617234] [2022-11-26 00:36:43,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:43,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:43,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:43,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:43,472 INFO L87 Difference]: Start difference. First operand 202 states and 239 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:43,663 INFO L93 Difference]: Finished difference Result 201 states and 238 transitions. [2022-11-26 00:36:43,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:43,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-26 00:36:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:43,665 INFO L225 Difference]: With dead ends: 201 [2022-11-26 00:36:43,665 INFO L226 Difference]: Without dead ends: 201 [2022-11-26 00:36:43,665 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 [2022-11-26 00:36:43,666 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:43,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 298 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-26 00:36:43,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-26 00:36:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3757225433526012) internal successors, (238), 200 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 238 transitions. [2022-11-26 00:36:43,672 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 238 transitions. Word has length 27 [2022-11-26 00:36:43,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:43,672 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 238 transitions. [2022-11-26 00:36:43,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 238 transitions. [2022-11-26 00:36:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:36:43,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:43,675 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:43,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:36:43,675 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:43,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:43,677 INFO L85 PathProgramCache]: Analyzing trace with hash -121860294, now seen corresponding path program 1 times [2022-11-26 00:36:43,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:43,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750194818] [2022-11-26 00:36:43,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:43,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:44,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:44,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750194818] [2022-11-26 00:36:44,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750194818] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:44,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705792354] [2022-11-26 00:36:44,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:44,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:44,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:44,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:44,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:36:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:44,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-26 00:36:44,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:44,500 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:36:44,500 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 [2022-11-26 00:36:44,510 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:36:44,510 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 [2022-11-26 00:36:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:44,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:36:44,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705792354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:44,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:36:44,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-11-26 00:36:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579847930] [2022-11-26 00:36:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:36:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:36:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:36:44,610 INFO L87 Difference]: Start difference. First operand 201 states and 238 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:45,184 INFO L93 Difference]: Finished difference Result 304 states and 336 transitions. [2022-11-26 00:36:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:36:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 00:36:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:45,186 INFO L225 Difference]: With dead ends: 304 [2022-11-26 00:36:45,186 INFO L226 Difference]: Without dead ends: 301 [2022-11-26 00:36:45,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:36:45,187 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 246 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:45,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 573 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:36:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-26 00:36:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 201. [2022-11-26 00:36:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.369942196531792) internal successors, (237), 200 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 237 transitions. [2022-11-26 00:36:45,192 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 237 transitions. Word has length 29 [2022-11-26 00:36:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:45,192 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 237 transitions. [2022-11-26 00:36:45,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 237 transitions. [2022-11-26 00:36:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:36:45,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:45,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:45,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:45,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-26 00:36:45,394 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash -68526270, now seen corresponding path program 1 times [2022-11-26 00:36:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:45,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780294656] [2022-11-26 00:36:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:46,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:46,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780294656] [2022-11-26 00:36:46,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780294656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:46,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:46,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:36:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044942227] [2022-11-26 00:36:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:46,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:36:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:36:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:36:46,162 INFO L87 Difference]: Start difference. First operand 201 states and 237 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:47,200 INFO L93 Difference]: Finished difference Result 381 states and 415 transitions. [2022-11-26 00:36:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:36:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 00:36:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:47,202 INFO L225 Difference]: With dead ends: 381 [2022-11-26 00:36:47,202 INFO L226 Difference]: Without dead ends: 381 [2022-11-26 00:36:47,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:36:47,203 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 534 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:47,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 880 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:36:47,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-26 00:36:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 201. [2022-11-26 00:36:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3641618497109826) internal successors, (236), 200 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2022-11-26 00:36:47,212 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 29 [2022-11-26 00:36:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:47,213 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2022-11-26 00:36:47,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2022-11-26 00:36:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:36:47,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:47,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:47,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:36:47,214 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -855629912, now seen corresponding path program 1 times [2022-11-26 00:36:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:47,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739958754] [2022-11-26 00:36:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:47,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:47,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739958754] [2022-11-26 00:36:47,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739958754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:47,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:47,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:36:47,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521767001] [2022-11-26 00:36:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:47,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:36:47,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:47,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:36:47,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:36:47,540 INFO L87 Difference]: Start difference. First operand 201 states and 236 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:47,849 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2022-11-26 00:36:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:36:47,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 00:36:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:47,850 INFO L225 Difference]: With dead ends: 201 [2022-11-26 00:36:47,850 INFO L226 Difference]: Without dead ends: 201 [2022-11-26 00:36:47,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:36:47,851 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 62 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:47,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 416 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:47,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-26 00:36:47,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2022-11-26 00:36:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2022-11-26 00:36:47,855 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2022-11-26 00:36:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:47,855 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2022-11-26 00:36:47,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2022-11-26 00:36:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:36:47,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:47,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:47,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:36:47,856 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:47,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:47,857 INFO L85 PathProgramCache]: Analyzing trace with hash -855629911, now seen corresponding path program 1 times [2022-11-26 00:36:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:47,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516438162] [2022-11-26 00:36:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:47,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:48,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:48,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516438162] [2022-11-26 00:36:48,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516438162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:48,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:48,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:36:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272227147] [2022-11-26 00:36:48,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:36:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:48,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:36:48,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:36:48,295 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:48,730 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2022-11-26 00:36:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:36:48,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 00:36:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:48,732 INFO L225 Difference]: With dead ends: 200 [2022-11-26 00:36:48,732 INFO L226 Difference]: Without dead ends: 200 [2022-11-26 00:36:48,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:36:48,732 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:48,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 521 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:36:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-26 00:36:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-11-26 00:36:48,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 173 states have (on average 1.3526011560693643) internal successors, (234), 198 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2022-11-26 00:36:48,736 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2022-11-26 00:36:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:48,736 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2022-11-26 00:36:48,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,737 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2022-11-26 00:36:48,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:36:48,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:48,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:36:48,737 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1262003309, now seen corresponding path program 1 times [2022-11-26 00:36:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:48,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819859505] [2022-11-26 00:36:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:48,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:48,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:48,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819859505] [2022-11-26 00:36:48,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819859505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:48,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:48,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:48,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579279702] [2022-11-26 00:36:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:48,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:48,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:48,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:48,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:48,771 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:48,815 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2022-11-26 00:36:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:48,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 00:36:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:48,816 INFO L225 Difference]: With dead ends: 200 [2022-11-26 00:36:48,816 INFO L226 Difference]: Without dead ends: 200 [2022-11-26 00:36:48,817 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 [2022-11-26 00:36:48,817 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:48,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:36:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-26 00:36:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-26 00:36:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2022-11-26 00:36:48,821 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2022-11-26 00:36:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:48,822 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2022-11-26 00:36:48,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2022-11-26 00:36:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:36:48,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:48,823 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] [2022-11-26 00:36:48,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:36:48,823 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:48,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1174961652, now seen corresponding path program 1 times [2022-11-26 00:36:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:48,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846596741] [2022-11-26 00:36:48,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:36:49,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:49,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846596741] [2022-11-26 00:36:49,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846596741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:49,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:49,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:36:49,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713690554] [2022-11-26 00:36:49,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:49,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:36:49,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:36:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:36:49,065 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:49,426 INFO L93 Difference]: Finished difference Result 265 states and 309 transitions. [2022-11-26 00:36:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:36:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-26 00:36:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:49,427 INFO L225 Difference]: With dead ends: 265 [2022-11-26 00:36:49,427 INFO L226 Difference]: Without dead ends: 265 [2022-11-26 00:36:49,428 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 [2022-11-26 00:36:49,428 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 201 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:49,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 545 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:36:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-26 00:36:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2022-11-26 00:36:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 187 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2022-11-26 00:36:49,432 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 30 [2022-11-26 00:36:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:49,432 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2022-11-26 00:36:49,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,432 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2022-11-26 00:36:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:36:49,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:49,433 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] [2022-11-26 00:36:49,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:36:49,433 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:49,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1990784287, now seen corresponding path program 1 times [2022-11-26 00:36:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:49,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646016281] [2022-11-26 00:36:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:49,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:49,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646016281] [2022-11-26 00:36:49,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646016281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:49,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:49,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:49,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335722375] [2022-11-26 00:36:49,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:49,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:49,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:49,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:49,528 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:49,713 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2022-11-26 00:36:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:49,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-26 00:36:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:49,715 INFO L225 Difference]: With dead ends: 190 [2022-11-26 00:36:49,715 INFO L226 Difference]: Without dead ends: 190 [2022-11-26 00:36:49,715 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 [2022-11-26 00:36:49,716 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 14 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:49,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 286 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-26 00:36:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2022-11-26 00:36:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3580246913580247) internal successors, (220), 187 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2022-11-26 00:36:49,720 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 30 [2022-11-26 00:36:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:49,720 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2022-11-26 00:36:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2022-11-26 00:36:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:36:49,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:49,721 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] [2022-11-26 00:36:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:36:49,721 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:49,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash -467082512, now seen corresponding path program 1 times [2022-11-26 00:36:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:49,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849225471] [2022-11-26 00:36:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:49,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:49,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849225471] [2022-11-26 00:36:49,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849225471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:49,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:49,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:36:49,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954240273] [2022-11-26 00:36:49,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:49,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:36:49,840 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:50,005 INFO L93 Difference]: Finished difference Result 195 states and 229 transitions. [2022-11-26 00:36:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:36:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-26 00:36:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:50,007 INFO L225 Difference]: With dead ends: 195 [2022-11-26 00:36:50,007 INFO L226 Difference]: Without dead ends: 195 [2022-11-26 00:36:50,007 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 [2022-11-26 00:36:50,008 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 8 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:50,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 306 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:50,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-26 00:36:50,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2022-11-26 00:36:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35625) internal successors, (217), 184 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2022-11-26 00:36:50,011 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 30 [2022-11-26 00:36:50,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:50,011 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2022-11-26 00:36:50,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2022-11-26 00:36:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-26 00:36:50,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:50,012 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] [2022-11-26 00:36:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:36:50,012 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:50,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1352456197, now seen corresponding path program 1 times [2022-11-26 00:36:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:50,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249124674] [2022-11-26 00:36:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:50,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249124674] [2022-11-26 00:36:50,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249124674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:50,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:50,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:36:50,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577125003] [2022-11-26 00:36:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:50,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:36:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:50,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:36:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:36:50,794 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:51,528 INFO L93 Difference]: Finished difference Result 272 states and 307 transitions. [2022-11-26 00:36:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:36:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-26 00:36:51,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:51,530 INFO L225 Difference]: With dead ends: 272 [2022-11-26 00:36:51,530 INFO L226 Difference]: Without dead ends: 272 [2022-11-26 00:36:51,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:36:51,531 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 392 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:51,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 755 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:36:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-26 00:36:51,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 185. [2022-11-26 00:36:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35) internal successors, (216), 184 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2022-11-26 00:36:51,536 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 32 [2022-11-26 00:36:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:51,536 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2022-11-26 00:36:51,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2022-11-26 00:36:51,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-26 00:36:51,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:51,538 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:51,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:36:51,538 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1602252178, now seen corresponding path program 1 times [2022-11-26 00:36:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:51,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716874127] [2022-11-26 00:36:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:51,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:51,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716874127] [2022-11-26 00:36:51,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716874127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:51,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952021679] [2022-11-26 00:36:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:51,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:51,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:51,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:51,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:36:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:51,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-26 00:36:51,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:51,875 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 [2022-11-26 00:36:51,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:36:51,904 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 [2022-11-26 00:36:51,918 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 [2022-11-26 00:36:52,022 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 [2022-11-26 00:36:52,024 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 [2022-11-26 00:36:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:52,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:52,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952021679] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:36:52,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810631322] [2022-11-26 00:36:52,161 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-26 00:36:52,162 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:36:52,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:36:52,163 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:36:52,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:36:52,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:36:52,218 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 [2022-11-26 00:36:52,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,228 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 [2022-11-26 00:36:52,237 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 [2022-11-26 00:36:52,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-26 00:36:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,304 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 [2022-11-26 00:36:52,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:52,316 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 [2022-11-26 00:36:52,581 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 [2022-11-26 00:36:52,677 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 [2022-11-26 00:36:52,712 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 [2022-11-26 00:36:52,736 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:36:55,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13671#(and (or (not (= |ULTIMATE.start_main_~list~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~list~0#1.base| 0))) (<= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:36:55,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:36:55,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:36:55,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 7 [2022-11-26 00:36:55,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882472261] [2022-11-26 00:36:55,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:36:55,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:36:55,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:36:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:36:55,048 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:55,480 INFO L93 Difference]: Finished difference Result 285 states and 312 transitions. [2022-11-26 00:36:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:36:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-26 00:36:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:55,482 INFO L225 Difference]: With dead ends: 285 [2022-11-26 00:36:55,482 INFO L226 Difference]: Without dead ends: 285 [2022-11-26 00:36:55,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2022-11-26 00:36:55,483 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 158 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:55,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 413 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:36:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-26 00:36:55,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 220. [2022-11-26 00:36:55,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 219 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 270 transitions. [2022-11-26 00:36:55,488 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 270 transitions. Word has length 34 [2022-11-26 00:36:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:55,488 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 270 transitions. [2022-11-26 00:36:55,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 270 transitions. [2022-11-26 00:36:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-26 00:36:55,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:55,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:55,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:55,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:55,705 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:55,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:55,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1602248556, now seen corresponding path program 1 times [2022-11-26 00:36:55,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:55,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123475074] [2022-11-26 00:36:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:55,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123475074] [2022-11-26 00:36:55,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123475074] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:55,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35631536] [2022-11-26 00:36:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:55,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:55,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:55,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:36:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:55,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:36:55,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:56,008 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 [2022-11-26 00:36:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:56,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:36:56,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35631536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:36:56,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2093992635] [2022-11-26 00:36:56,100 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-26 00:36:56,100 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:36:56,101 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:36:56,101 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:36:56,101 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:36:56,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:36:56,144 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 [2022-11-26 00:36:56,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,152 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 [2022-11-26 00:36:56,160 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 [2022-11-26 00:36:56,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,203 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 [2022-11-26 00:36:56,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,215 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 [2022-11-26 00:36:56,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:56,226 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 [2022-11-26 00:36:56,486 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 [2022-11-26 00:36:56,558 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 [2022-11-26 00:36:56,595 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 [2022-11-26 00:36:56,629 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:36:58,733 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14406#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-26 00:36:58,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:36:58,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:36:58,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2022-11-26 00:36:58,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375151365] [2022-11-26 00:36:58,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:36:58,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:36:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:58,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:36:58,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:36:58,735 INFO L87 Difference]: Start difference. First operand 220 states and 270 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:58,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:58,900 INFO L93 Difference]: Finished difference Result 223 states and 272 transitions. [2022-11-26 00:36:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:36:58,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-26 00:36:58,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:58,902 INFO L225 Difference]: With dead ends: 223 [2022-11-26 00:36:58,902 INFO L226 Difference]: Without dead ends: 204 [2022-11-26 00:36:58,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 73 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:36:58,903 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:58,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:58,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-26 00:36:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-26 00:36:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 179 states have (on average 1.4134078212290502) internal successors, (253), 203 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2022-11-26 00:36:58,909 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 34 [2022-11-26 00:36:58,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:58,909 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2022-11-26 00:36:58,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:36:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2022-11-26 00:36:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-26 00:36:58,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:58,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:58,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:59,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-26 00:36:59,120 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:36:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2125355099, now seen corresponding path program 1 times [2022-11-26 00:36:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:59,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343004504] [2022-11-26 00:36:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:59,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:59,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343004504] [2022-11-26 00:36:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343004504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:36:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399646517] [2022-11-26 00:36:59,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:59,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:59,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:59,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:59,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:36:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:59,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:36:59,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:59,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:36:59,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399646517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:36:59,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435525761] [2022-11-26 00:36:59,365 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-26 00:36:59,365 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:36:59,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:36:59,366 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:36:59,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:36:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:36:59,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,404 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 [2022-11-26 00:36:59,412 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 [2022-11-26 00:36:59,419 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 [2022-11-26 00:36:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-26 00:36:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,483 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 [2022-11-26 00:36:59,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,494 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 [2022-11-26 00:36:59,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,507 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 [2022-11-26 00:36:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,550 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:36:59,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-26 00:36:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-26 00:36:59,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-26 00:36:59,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:36:59,648 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-26 00:36:59,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-26 00:36:59,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,678 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-26 00:36:59,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-26 00:36:59,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:59,713 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 [2022-11-26 00:37:00,253 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:37:04,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1435525761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:04,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:37:04,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 24 [2022-11-26 00:37:04,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466468341] [2022-11-26 00:37:04,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:04,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-26 00:37:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:04,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-26 00:37:04,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:37:04,565 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:06,949 INFO L93 Difference]: Finished difference Result 228 states and 269 transitions. [2022-11-26 00:37:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:37:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-26 00:37:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:06,951 INFO L225 Difference]: With dead ends: 228 [2022-11-26 00:37:06,951 INFO L226 Difference]: Without dead ends: 228 [2022-11-26 00:37:06,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:37:06,952 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 84 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:06,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 629 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:37:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-26 00:37:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 210. [2022-11-26 00:37:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 185 states have (on average 1.3945945945945946) internal successors, (258), 209 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:06,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2022-11-26 00:37:06,958 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 36 [2022-11-26 00:37:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:06,958 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2022-11-26 00:37:06,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:06,958 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2022-11-26 00:37:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-26 00:37:06,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:06,959 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:06,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:37:07,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-26 00:37:07,165 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:37:07,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:07,166 INFO L85 PathProgramCache]: Analyzing trace with hash 586306947, now seen corresponding path program 1 times [2022-11-26 00:37:07,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:07,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642776076] [2022-11-26 00:37:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:37:07,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:07,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642776076] [2022-11-26 00:37:07,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642776076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:07,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:37:07,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:37:07,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059437311] [2022-11-26 00:37:07,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:07,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:37:07,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:07,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:37:07,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:37:07,311 INFO L87 Difference]: Start difference. First operand 210 states and 258 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:07,431 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2022-11-26 00:37:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:37:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-26 00:37:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:07,433 INFO L225 Difference]: With dead ends: 220 [2022-11-26 00:37:07,433 INFO L226 Difference]: Without dead ends: 220 [2022-11-26 00:37:07,433 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 [2022-11-26 00:37:07,433 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 9 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:07,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 252 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:37:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-26 00:37:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 212. [2022-11-26 00:37:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 187 states have (on average 1.3903743315508021) internal successors, (260), 211 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 260 transitions. [2022-11-26 00:37:07,438 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 260 transitions. Word has length 40 [2022-11-26 00:37:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:07,439 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 260 transitions. [2022-11-26 00:37:07,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 260 transitions. [2022-11-26 00:37:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-26 00:37:07,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:07,439 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:07,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-26 00:37:07,440 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:37:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1230011898, now seen corresponding path program 1 times [2022-11-26 00:37:07,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:07,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876251026] [2022-11-26 00:37:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:07,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:37:08,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876251026] [2022-11-26 00:37:08,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876251026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957146586] [2022-11-26 00:37:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:08,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:08,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:08,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:37:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:08,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-26 00:37:08,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:08,335 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 [2022-11-26 00:37:08,379 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 [2022-11-26 00:37:08,387 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 [2022-11-26 00:37:08,539 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:08,540 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 [2022-11-26 00:37:08,615 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:37:08,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 00:37:08,643 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:37:08,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-26 00:37:08,868 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:37:08,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2022-11-26 00:37:08,907 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:37:08,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2022-11-26 00:37:09,162 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:37:09,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2022-11-26 00:37:09,175 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:37:09,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2022-11-26 00:37:09,601 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:37:09,602 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 [2022-11-26 00:37:09,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2022-11-26 00:37:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:37:09,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:37:10,334 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (or (forall ((v_ArrVal_982 Int) (v_ArrVal_988 (Array Int Int))) (= 0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_982)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_988) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (forall ((v_ArrVal_987 (Array Int Int))) (= (select |c_#valid| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse1 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)) 1)))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_987 (Array Int Int))) (let ((.cse2 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse1 |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_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (or (= (select |c_#valid| .cse2) 1) (= .cse2 0)))))) is different from false [2022-11-26 00:37:13,210 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-26 00:37:13,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 43 [2022-11-26 00:37:13,238 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-26 00:37:13,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 42 [2022-11-26 00:37:13,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:37:13,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 69 [2022-11-26 00:37:13,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2022-11-26 00:37:13,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:37:13,274 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 [2022-11-26 00:37:13,329 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-26 00:37:13,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 55 [2022-11-26 00:37:13,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:37:13,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 76 [2022-11-26 00:37:13,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2022-11-26 00:37:23,466 WARN L233 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 21 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:37:23,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957146586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:37:23,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232099431] [2022-11-26 00:37:23,496 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-26 00:37:23,496 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:37:23,497 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:37:23,497 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:37:23,497 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:37:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:37:23,541 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 [2022-11-26 00:37:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,548 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 [2022-11-26 00:37:23,556 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 [2022-11-26 00:37:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,593 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 [2022-11-26 00:37:23,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,602 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 [2022-11-26 00:37:23,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,613 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 [2022-11-26 00:37:23,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,697 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 [2022-11-26 00:37:23,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:37:23,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,734 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 [2022-11-26 00:37:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:37:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,789 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 [2022-11-26 00:37:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,823 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-26 00:37:23,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:37:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,851 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:37:23,851 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 1 case distinctions, treesize of input 77 treesize of output 59 [2022-11-26 00:37:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,918 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 [2022-11-26 00:37:23,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-26 00:37:23,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:23,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-26 00:37:24,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,038 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 [2022-11-26 00:37:24,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,069 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 [2022-11-26 00:37:24,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:37:24,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:37:24,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,204 INFO L321 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2022-11-26 00:37:24,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 219 treesize of output 142 [2022-11-26 00:37:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2022-11-26 00:37:24,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,249 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 [2022-11-26 00:37:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,480 INFO L321 Elim1Store]: treesize reduction 62, result has 25.3 percent of original size [2022-11-26 00:37:24,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 476 treesize of output 396 [2022-11-26 00:37:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:24,561 INFO L321 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size [2022-11-26 00:37:24,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 468 treesize of output 473 [2022-11-26 00:37:24,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:24,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 445 [2022-11-26 00:37:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,039 INFO L321 Elim1Store]: treesize reduction 278, result has 12.0 percent of original size [2022-11-26 00:37:25,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 492 treesize of output 499 [2022-11-26 00:37:25,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,240 INFO L321 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-11-26 00:37:25,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 595 treesize of output 588 [2022-11-26 00:37:25,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,384 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-26 00:37:25,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 587 treesize of output 467 [2022-11-26 00:37:25,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,461 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-26 00:37:25,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 518 treesize of output 501 [2022-11-26 00:37:25,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,926 INFO L321 Elim1Store]: treesize reduction 194, result has 20.2 percent of original size [2022-11-26 00:37:25,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 808 treesize of output 506 [2022-11-26 00:37:25,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:25,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:25,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:26,159 INFO L321 Elim1Store]: treesize reduction 306, result has 20.9 percent of original size [2022-11-26 00:37:26,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 736 treesize of output 716 [2022-11-26 00:37:26,239 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:37:26,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 716 treesize of output 699 [2022-11-26 00:37:26,672 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 [2022-11-26 00:37:26,676 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 [2022-11-26 00:37:26,681 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 [2022-11-26 00:37:26,716 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:26,716 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 [2022-11-26 00:37:26,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:37:26,733 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 [2022-11-26 00:37:26,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-26 00:37:26,747 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 [2022-11-26 00:37:26,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:26,788 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:37:26,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-26 00:37:26,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:37:26,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:37:26,869 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 [2022-11-26 00:37:26,874 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 [2022-11-26 00:37:26,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:37:27,056 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-26 00:37:27,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 216 [2022-11-26 00:37:27,380 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:27,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 111 [2022-11-26 00:37:27,424 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:27,424 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 [2022-11-26 00:37:27,467 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:37:27,489 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:37:27,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:37:27,527 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:37:27,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:37:27,576 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:27,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 122 [2022-11-26 00:37:27,652 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:27,652 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 [2022-11-26 00:37:27,705 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:27,705 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 [2022-11-26 00:37:27,791 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 [2022-11-26 00:37:27,796 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 [2022-11-26 00:37:27,802 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 [2022-11-26 00:37:27,834 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:37:27,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-26 00:37:27,859 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:37:27,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-26 00:37:27,873 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 [2022-11-26 00:37:27,880 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:37:30,971 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16242#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-26 00:37:30,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:37:30,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:37:30,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 33 [2022-11-26 00:37:30,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534261297] [2022-11-26 00:37:30,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:37:30,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-26 00:37:30,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-26 00:37:30,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2740, Unknown=8, NotChecked=108, Total=3192 [2022-11-26 00:37:30,974 INFO L87 Difference]: Start difference. First operand 212 states and 260 transitions. Second operand has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:37:40,971 WARN L233 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 67 DAG size of output: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:43,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-26 00:37:53,397 WARN L233 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 54 DAG size of output: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:55,550 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 [0, 1] [2022-11-26 00:38:01,808 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 39 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:38:01,864 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|)) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= (select .cse0 |c_ULTIMATE.start_main_~list~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (or (forall ((v_ArrVal_987 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1)) (forall ((v_ArrVal_988 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_988) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0))) (not (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (= 0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) (= (select .cse0 .cse2) 0) (forall ((v_ArrVal_987 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= (select |c_#valid| .cse3) 1) (= .cse3 0)))))) is different from false [2022-11-26 00:38:03,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:38:06,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:38:08,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:38:12,340 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 [0, 1] [2022-11-26 00:38:23,340 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 98 DAG size of output: 41 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:38:23,396 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (forall ((v_ArrVal_987 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= .cse0 0) (= (select |c_#valid| .cse0) 1)))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (and (= 0 .cse2) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (= (select |c_#valid| .cse2) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_12| Int)) (or (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (or (forall ((v_ArrVal_987 (Array Int Int))) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_12| 1) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_12|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_12| v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)) (forall ((v_ArrVal_982 Int) (v_ArrVal_988 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_ArrVal_982)) |v_ULTIMATE.start_main_#t~malloc10#1.base_12| v_ArrVal_988) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_12|) 0)))) (or (forall ((v_ArrVal_988 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_988) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_987 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_12| Int)) (or (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_987 (Array Int Int))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_12|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_12| v_ArrVal_987) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= .cse4 0) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_12| 1) .cse4) 1)))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_12|) 0)))))) is different from false [2022-11-26 00:38:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:28,956 INFO L93 Difference]: Finished difference Result 759 states and 890 transitions. [2022-11-26 00:38:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-26 00:38:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-26 00:38:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:28,959 INFO L225 Difference]: With dead ends: 759 [2022-11-26 00:38:28,959 INFO L226 Difference]: Without dead ends: 759 [2022-11-26 00:38:28,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3302 ImplicationChecksByTransitivity, 59.5s TimeCoverageRelationStatistics Valid=1138, Invalid=8949, Unknown=25, NotChecked=600, Total=10712 [2022-11-26 00:38:28,963 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1850 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 166 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 363 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:28,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 1464 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1694 Invalid, 24 Unknown, 363 Unchecked, 14.9s Time] [2022-11-26 00:38:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-11-26 00:38:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 292. [2022-11-26 00:38:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 267 states have (on average 1.3108614232209739) internal successors, (350), 291 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 350 transitions. [2022-11-26 00:38:28,973 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 350 transitions. Word has length 41 [2022-11-26 00:38:28,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:28,973 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 350 transitions. [2022-11-26 00:38:28,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.6176470588235294) internal successors, (123), 33 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 350 transitions. [2022-11-26 00:38:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:38:28,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:28,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:28,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:38:29,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:29,187 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:38:29,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:29,188 INFO L85 PathProgramCache]: Analyzing trace with hash -537734687, now seen corresponding path program 1 times [2022-11-26 00:38:29,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20269755] [2022-11-26 00:38:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:29,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:38:29,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:29,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20269755] [2022-11-26 00:38:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20269755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:29,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:38:29,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:38:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744393411] [2022-11-26 00:38:29,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:38:29,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:38:29,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:38:29,250 INFO L87 Difference]: Start difference. First operand 292 states and 350 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:29,346 INFO L93 Difference]: Finished difference Result 292 states and 347 transitions. [2022-11-26 00:38:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:38:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-26 00:38:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:29,348 INFO L225 Difference]: With dead ends: 292 [2022-11-26 00:38:29,348 INFO L226 Difference]: Without dead ends: 292 [2022-11-26 00:38:29,348 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 [2022-11-26 00:38:29,349 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 70 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:29,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 103 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:38:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-26 00:38:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2022-11-26 00:38:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 266 states have (on average 1.2969924812030076) internal successors, (345), 289 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 345 transitions. [2022-11-26 00:38:29,354 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 345 transitions. Word has length 43 [2022-11-26 00:38:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:29,354 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 345 transitions. [2022-11-26 00:38:29,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 345 transitions. [2022-11-26 00:38:29,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:38:29,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:29,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:29,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-26 00:38:29,356 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:38:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash -978753858, now seen corresponding path program 1 times [2022-11-26 00:38:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24381136] [2022-11-26 00:38:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:29,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:29,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:29,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24381136] [2022-11-26 00:38:29,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24381136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:38:29,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286856775] [2022-11-26 00:38:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:29,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:29,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:38:29,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:38:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:38:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:29,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-26 00:38:29,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:38:29,863 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 [2022-11-26 00:38:30,001 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:30,002 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 [2022-11-26 00:38:30,057 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 [2022-11-26 00:38:30,158 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:38:30,159 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 [2022-11-26 00:38:30,272 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:38:30,272 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 [2022-11-26 00:38:30,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:30,510 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 [2022-11-26 00:38:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:30,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:38:30,970 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:30,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-11-26 00:38:30,983 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:30,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-11-26 00:38:30,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:38:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:35,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286856775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:38:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1205058571] [2022-11-26 00:38:35,725 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-26 00:38:35,726 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:38:35,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:38:35,726 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:38:35,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:38:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:38:35,770 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 [2022-11-26 00:38:35,779 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 [2022-11-26 00:38:35,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,788 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 [2022-11-26 00:38:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,829 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 [2022-11-26 00:38:35,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,838 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 [2022-11-26 00:38:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,848 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 [2022-11-26 00:38:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,932 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 [2022-11-26 00:38:35,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:38:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:38:35,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:35,982 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 [2022-11-26 00:38:36,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,032 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-26 00:38:36,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:38:36,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,045 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 [2022-11-26 00:38:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,074 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:38:36,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 59 [2022-11-26 00:38:36,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,160 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-26 00:38:36,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 71 [2022-11-26 00:38:36,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,180 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 34 treesize of output 21 [2022-11-26 00:38:36,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-26 00:38:36,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,283 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 [2022-11-26 00:38:36,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,314 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 [2022-11-26 00:38:36,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,351 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-26 00:38:36,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 141 treesize of output 110 [2022-11-26 00:38:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:38:36,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,405 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 [2022-11-26 00:38:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,477 INFO L321 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2022-11-26 00:38:36,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 219 treesize of output 142 [2022-11-26 00:38:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2022-11-26 00:38:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,760 INFO L321 Elim1Store]: treesize reduction 62, result has 25.3 percent of original size [2022-11-26 00:38:36,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 456 treesize of output 396 [2022-11-26 00:38:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 433 [2022-11-26 00:38:36,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:36,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:36,848 INFO L321 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size [2022-11-26 00:38:36,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 448 treesize of output 453 [2022-11-26 00:38:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:37,413 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-26 00:38:37,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 885 treesize of output 855 [2022-11-26 00:38:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:37,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:37,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,729 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-11-26 00:38:37,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 1046 treesize of output 858 [2022-11-26 00:38:37,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,829 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-26 00:38:37,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1041 treesize of output 1008 [2022-11-26 00:38:37,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:37,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:37,947 INFO L321 Elim1Store]: treesize reduction 108, result has 15.0 percent of original size [2022-11-26 00:38:37,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 1046 treesize of output 1003 [2022-11-26 00:38:38,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:38,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:38,558 INFO L321 Elim1Store]: treesize reduction 194, result has 20.2 percent of original size [2022-11-26 00:38:38,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 808 treesize of output 506 [2022-11-26 00:38:38,643 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:38:38,644 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 740 treesize of output 723 [2022-11-26 00:38:38,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:38,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:38,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:38,864 INFO L321 Elim1Store]: treesize reduction 306, result has 20.9 percent of original size [2022-11-26 00:38:38,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 736 treesize of output 716 [2022-11-26 00:38:39,268 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 [2022-11-26 00:38:39,273 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 [2022-11-26 00:38:39,278 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 [2022-11-26 00:38:39,318 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:38:39,319 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 [2022-11-26 00:38:39,350 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:39,351 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 [2022-11-26 00:38:39,362 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 15 treesize of output 1 [2022-11-26 00:38:39,369 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 [2022-11-26 00:38:39,377 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 [2022-11-26 00:38:39,397 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 [2022-11-26 00:38:39,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:39,407 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 35 treesize of output 33 [2022-11-26 00:38:39,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:39,433 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:38:39,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-26 00:38:39,491 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 [2022-11-26 00:38:39,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:38:39,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 00:38:39,748 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-26 00:38:39,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 216 [2022-11-26 00:38:40,150 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:40,150 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 [2022-11-26 00:38:40,179 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:38:40,218 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:40,218 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 [2022-11-26 00:38:40,249 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:38:40,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:38:40,309 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:40,310 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 [2022-11-26 00:38:40,361 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:38:40,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:38:40,390 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:38:40,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:38:40,440 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:40,441 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 [2022-11-26 00:38:40,506 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:40,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 172 [2022-11-26 00:38:40,619 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 [2022-11-26 00:38:40,624 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 [2022-11-26 00:38:40,629 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 [2022-11-26 00:38:40,643 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 [2022-11-26 00:38:40,682 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:38:40,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-26 00:38:40,704 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:38:40,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-26 00:38:40,745 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:38:43,597 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18272#(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 [2022-11-26 00:38:43,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:38:43,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:38:43,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2022-11-26 00:38:43,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361549463] [2022-11-26 00:38:43,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:38:43,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-26 00:38:43,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:43,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-26 00:38:43,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-11-26 00:38:43,600 INFO L87 Difference]: Start difference. First operand 290 states and 345 transitions. Second operand has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:45,032 INFO L93 Difference]: Finished difference Result 540 states and 607 transitions. [2022-11-26 00:38:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:38:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-26 00:38:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:45,034 INFO L225 Difference]: With dead ends: 540 [2022-11-26 00:38:45,034 INFO L226 Difference]: Without dead ends: 540 [2022-11-26 00:38:45,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=298, Invalid=2672, Unknown=0, NotChecked=0, Total=2970 [2022-11-26 00:38:45,035 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 1377 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:45,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 888 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:38:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-26 00:38:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 361. [2022-11-26 00:38:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 337 states have (on average 1.3234421364985163) internal successors, (446), 360 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 446 transitions. [2022-11-26 00:38:45,045 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 446 transitions. Word has length 43 [2022-11-26 00:38:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:45,045 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 446 transitions. [2022-11-26 00:38:45,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.291666666666667) internal successors, (127), 25 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 446 transitions. [2022-11-26 00:38:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:38:45,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:45,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:45,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:38:45,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-26 00:38:45,264 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:38:45,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:45,265 INFO L85 PathProgramCache]: Analyzing trace with hash -978753857, now seen corresponding path program 1 times [2022-11-26 00:38:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:45,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212495773] [2022-11-26 00:38:45,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:45,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:45,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212495773] [2022-11-26 00:38:45,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212495773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:38:45,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118711059] [2022-11-26 00:38:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:45,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:45,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:38:45,787 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:38:45,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:38:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:45,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-26 00:38:45,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:38:45,968 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 [2022-11-26 00:38:46,097 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 [2022-11-26 00:38:46,112 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-26 00:38:46,113 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 [2022-11-26 00:38:46,164 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 [2022-11-26 00:38:46,173 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 [2022-11-26 00:38:46,280 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:38:46,280 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 [2022-11-26 00:38:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:46,296 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 [2022-11-26 00:38:46,408 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:38:46,408 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 [2022-11-26 00:38:46,418 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 [2022-11-26 00:38:46,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:46,676 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 [2022-11-26 00:38:46,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:46,684 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 [2022-11-26 00:38:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:46,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:38:47,610 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:47,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-11-26 00:38:47,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:47,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-11-26 00:38:47,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-26 00:38:47,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:47,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2022-11-26 00:38:47,701 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:38:47,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-11-26 00:38:47,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:47,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-11-26 00:38:47,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:47,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-26 00:38:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:38:48,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118711059] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:38:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [30435416] [2022-11-26 00:38:48,156 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-26 00:38:48,156 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:38:48,157 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:38:48,157 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:38:48,157 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:38:48,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:38:48,200 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 [2022-11-26 00:38:48,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,208 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 [2022-11-26 00:38:48,217 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 [2022-11-26 00:38:48,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,255 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 [2022-11-26 00:38:48,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,265 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 [2022-11-26 00:38:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,275 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 [2022-11-26 00:38:48,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,348 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 [2022-11-26 00:38:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:38:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,389 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 [2022-11-26 00:38:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-26 00:38:48,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,455 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-11-26 00:38:48,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 59 [2022-11-26 00:38:48,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,470 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 [2022-11-26 00:38:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:38:48,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:38:48,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-26 00:38:48,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,575 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 34 treesize of output 21 [2022-11-26 00:38:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,667 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 [2022-11-26 00:38:48,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,694 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 [2022-11-26 00:38:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:38:48,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-26 00:38:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,771 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 [2022-11-26 00:38:48,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:48,864 INFO L321 Elim1Store]: treesize reduction 148, result has 21.7 percent of original size [2022-11-26 00:38:48,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 278 treesize of output 177 [2022-11-26 00:38:48,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:48,939 INFO L321 Elim1Store]: treesize reduction 134, result has 22.5 percent of original size [2022-11-26 00:38:48,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 225 treesize of output 187 [2022-11-26 00:38:49,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:49,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:49,168 INFO L321 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2022-11-26 00:38:49,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 480 treesize of output 400 [2022-11-26 00:38:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:49,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:49,267 INFO L321 Elim1Store]: treesize reduction 136, result has 17.6 percent of original size [2022-11-26 00:38:49,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 472 treesize of output 473 [2022-11-26 00:38:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 470 treesize of output 449 [2022-11-26 00:38:49,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:49,817 INFO L321 Elim1Store]: treesize reduction 278, result has 12.0 percent of original size [2022-11-26 00:38:49,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 933 treesize of output 908 [2022-11-26 00:38:50,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:50,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:50,162 INFO L321 Elim1Store]: treesize reduction 180, result has 19.3 percent of original size [2022-11-26 00:38:50,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 1132 treesize of output 872 [2022-11-26 00:38:50,235 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:38:50,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 999 treesize of output 966 [2022-11-26 00:38:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:50,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:50,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:50,403 INFO L321 Elim1Store]: treesize reduction 236, result has 14.2 percent of original size [2022-11-26 00:38:50,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 1004 treesize of output 953 [2022-11-26 00:38:50,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:50,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:51,010 INFO L321 Elim1Store]: treesize reduction 464, result has 12.3 percent of original size [2022-11-26 00:38:51,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 867 treesize of output 547 [2022-11-26 00:38:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:51,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:51,399 INFO L321 Elim1Store]: treesize reduction 590, result has 13.9 percent of original size [2022-11-26 00:38:51,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 771 treesize of output 751 [2022-11-26 00:38:51,477 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:38:51,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 743 treesize of output 726 [2022-11-26 00:38:51,847 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 [2022-11-26 00:38:51,852 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 [2022-11-26 00:38:51,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:38:51,892 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:51,892 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 [2022-11-26 00:38:51,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:38:51,909 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 [2022-11-26 00:38:51,929 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 [2022-11-26 00:38:51,937 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 [2022-11-26 00:38:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,976 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:38:51,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-26 00:38:51,992 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 35 treesize of output 33 [2022-11-26 00:38:52,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:38:52,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-26 00:38:52,062 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 [2022-11-26 00:38:52,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:38:52,298 INFO L321 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2022-11-26 00:38:52,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 216 [2022-11-26 00:38:52,546 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:52,547 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 [2022-11-26 00:38:52,608 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:52,608 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 [2022-11-26 00:38:52,657 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:52,657 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 [2022-11-26 00:38:52,689 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:38:52,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:38:52,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:38:52,771 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:38:52,771 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 [2022-11-26 00:38:52,857 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 [2022-11-26 00:38:52,863 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 [2022-11-26 00:38:52,868 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 [2022-11-26 00:38:52,882 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 [2022-11-26 00:38:52,916 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:38:52,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-26 00:38:52,940 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:38:52,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-26 00:38:52,982 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:38:56,185 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19487#(and (or (not (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|))) (not (<= 0 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |ULTIMATE.start_main_~len~0#1| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:38:56,186 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:38:56,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:38:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 25 [2022-11-26 00:38:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337468166] [2022-11-26 00:38:56,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:38:56,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-26 00:38:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-26 00:38:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2258, Unknown=3, NotChecked=0, Total=2450 [2022-11-26 00:38:56,189 INFO L87 Difference]: Start difference. First operand 361 states and 446 transitions. Second operand has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:58,919 INFO L93 Difference]: Finished difference Result 509 states and 576 transitions. [2022-11-26 00:38:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:38:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-26 00:38:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:58,922 INFO L225 Difference]: With dead ends: 509 [2022-11-26 00:38:58,923 INFO L226 Difference]: Without dead ends: 509 [2022-11-26 00:38:58,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=417, Invalid=4136, Unknown=3, NotChecked=0, Total=4556 [2022-11-26 00:38:58,924 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 768 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:58,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1108 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:38:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-11-26 00:38:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 376. [2022-11-26 00:38:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 352 states have (on average 1.3323863636363635) internal successors, (469), 375 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 469 transitions. [2022-11-26 00:38:58,932 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 469 transitions. Word has length 43 [2022-11-26 00:38:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:58,932 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 469 transitions. [2022-11-26 00:38:58,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.16) internal successors, (129), 26 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 469 transitions. [2022-11-26 00:38:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-26 00:38:58,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:58,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:58,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:38:59,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-26 00:38:59,140 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:38:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash 510098320, now seen corresponding path program 1 times [2022-11-26 00:38:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561687157] [2022-11-26 00:38:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:38:59,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:59,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561687157] [2022-11-26 00:38:59,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561687157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:59,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:38:59,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:38:59,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121876833] [2022-11-26 00:38:59,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:59,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:38:59,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:59,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:38:59,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:38:59,441 INFO L87 Difference]: Start difference. First operand 376 states and 469 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:59,863 INFO L93 Difference]: Finished difference Result 387 states and 474 transitions. [2022-11-26 00:38:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:38:59,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-26 00:38:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:59,866 INFO L225 Difference]: With dead ends: 387 [2022-11-26 00:38:59,866 INFO L226 Difference]: Without dead ends: 387 [2022-11-26 00:38:59,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:38:59,866 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 318 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:59,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 216 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:38:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-26 00:38:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 376. [2022-11-26 00:38:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 352 states have (on average 1.3295454545454546) internal successors, (468), 375 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:59,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 468 transitions. [2022-11-26 00:38:59,873 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 468 transitions. Word has length 44 [2022-11-26 00:38:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:59,874 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 468 transitions. [2022-11-26 00:38:59,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:38:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 468 transitions. [2022-11-26 00:38:59,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-26 00:38:59,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:59,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:59,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-26 00:38:59,875 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:38:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash 510098321, now seen corresponding path program 1 times [2022-11-26 00:38:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867214903] [2022-11-26 00:38:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:39:00,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:00,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867214903] [2022-11-26 00:39:00,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867214903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:00,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:39:00,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:39:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905751557] [2022-11-26 00:39:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:00,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:39:00,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:39:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:39:00,314 INFO L87 Difference]: Start difference. First operand 376 states and 468 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:39:00,773 INFO L93 Difference]: Finished difference Result 390 states and 477 transitions. [2022-11-26 00:39:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:39:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-26 00:39:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:39:00,775 INFO L225 Difference]: With dead ends: 390 [2022-11-26 00:39:00,775 INFO L226 Difference]: Without dead ends: 390 [2022-11-26 00:39:00,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:39:00,776 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 210 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:39:00,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 312 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:39:00,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-26 00:39:00,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 376. [2022-11-26 00:39:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 352 states have (on average 1.3238636363636365) internal successors, (466), 375 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 466 transitions. [2022-11-26 00:39:00,783 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 466 transitions. Word has length 44 [2022-11-26 00:39:00,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:00,783 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 466 transitions. [2022-11-26 00:39:00,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 466 transitions. [2022-11-26 00:39:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-26 00:39:00,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:00,784 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] [2022-11-26 00:39:00,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-26 00:39:00,785 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:39:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:00,785 INFO L85 PathProgramCache]: Analyzing trace with hash -907190750, now seen corresponding path program 1 times [2022-11-26 00:39:00,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:00,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190377769] [2022-11-26 00:39:00,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:00,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:01,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:01,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190377769] [2022-11-26 00:39:01,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190377769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:39:01,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993807152] [2022-11-26 00:39:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:01,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:01,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:01,478 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:39:01,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:39:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:01,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-26 00:39:01,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:39:01,646 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 [2022-11-26 00:39:01,702 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:01,702 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 [2022-11-26 00:39:01,743 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 [2022-11-26 00:39:01,847 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:39:01,847 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 [2022-11-26 00:39:01,916 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:39:01,917 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 [2022-11-26 00:39:02,057 INFO L321 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-11-26 00:39:02,057 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 [2022-11-26 00:39:02,157 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:39:02,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-26 00:39:02,430 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:39:02,430 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 [2022-11-26 00:39:02,805 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:39:02,806 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 [2022-11-26 00:39:03,233 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 [2022-11-26 00:39:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:03,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:39:03,391 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1)) is different from false [2022-11-26 00:39:05,659 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1331 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1))) is different from false [2022-11-26 00:39:05,697 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1326 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1331 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1326))) (store .cse0 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1331) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1))) is different from false [2022-11-26 00:39:06,038 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:39:06,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 66 [2022-11-26 00:39:06,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:06,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 282 [2022-11-26 00:39:06,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 298 [2022-11-26 00:39:06,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 270 [2022-11-26 00:39:06,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 212 [2022-11-26 00:39:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:39:06,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993807152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:39:06,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278642328] [2022-11-26 00:39:06,461 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-26 00:39:06,461 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:39:06,462 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:39:06,462 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:39:06,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:39:06,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:39:06,501 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 [2022-11-26 00:39:06,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,509 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 [2022-11-26 00:39:06,516 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 [2022-11-26 00:39:06,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,552 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 [2022-11-26 00:39:06,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,578 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 [2022-11-26 00:39:06,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,590 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 [2022-11-26 00:39:06,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,600 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 [2022-11-26 00:39:06,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,643 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:39:06,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-26 00:39:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-26 00:39:06,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,671 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 [2022-11-26 00:39:06,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:06,724 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-26 00:39:06,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-26 00:39:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,755 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-26 00:39:06,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-26 00:39:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,770 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 [2022-11-26 00:39:06,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,863 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 [2022-11-26 00:39:06,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,912 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 [2022-11-26 00:39:06,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:06,945 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-26 00:39:06,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 111 [2022-11-26 00:39:06,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2022-11-26 00:39:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:06,997 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 [2022-11-26 00:39:07,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,042 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:39:07,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 199 treesize of output 130 [2022-11-26 00:39:07,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 65 [2022-11-26 00:39:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,189 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-11-26 00:39:07,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 208 treesize of output 142 [2022-11-26 00:39:07,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-26 00:39:07,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,233 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 [2022-11-26 00:39:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,326 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 [2022-11-26 00:39:07,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,414 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-26 00:39:07,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 290 treesize of output 190 [2022-11-26 00:39:07,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-26 00:39:07,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,467 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 [2022-11-26 00:39:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,494 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 [2022-11-26 00:39:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,623 INFO L321 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2022-11-26 00:39:07,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 359 treesize of output 219 [2022-11-26 00:39:07,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 93 [2022-11-26 00:39:07,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:07,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:07,988 INFO L321 Elim1Store]: treesize reduction 118, result has 19.2 percent of original size [2022-11-26 00:39:07,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 718 treesize of output 527 [2022-11-26 00:39:08,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:08,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:08,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:08,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:08,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:08,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:08,138 INFO L321 Elim1Store]: treesize reduction 194, result has 17.8 percent of original size [2022-11-26 00:39:08,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 710 treesize of output 701 [2022-11-26 00:39:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:08,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:08,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 708 treesize of output 687 [2022-11-26 00:39:08,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:09,108 INFO L321 Elim1Store]: treesize reduction 262, result has 12.1 percent of original size [2022-11-26 00:39:09,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1409 treesize of output 1358 [2022-11-26 00:39:09,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:09,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,579 INFO L321 Elim1Store]: treesize reduction 132, result has 20.5 percent of original size [2022-11-26 00:39:09,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 1660 treesize of output 1133 [2022-11-26 00:39:09,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,798 INFO L321 Elim1Store]: treesize reduction 234, result has 12.0 percent of original size [2022-11-26 00:39:09,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 1660 treesize of output 1563 [2022-11-26 00:39:09,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:09,889 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-26 00:39:09,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1639 treesize of output 1606 [2022-11-26 00:39:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:10,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:10,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:10,833 INFO L321 Elim1Store]: treesize reduction 622, result has 11.8 percent of original size [2022-11-26 00:39:10,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1165 treesize of output 694 [2022-11-26 00:39:10,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:10,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:39:11,378 INFO L321 Elim1Store]: treesize reduction 750, result has 11.5 percent of original size [2022-11-26 00:39:11,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1180 treesize of output 1049 [2022-11-26 00:39:11,497 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:39:11,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1123 treesize of output 1106 [2022-11-26 00:39:12,001 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 [2022-11-26 00:39:12,005 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 [2022-11-26 00:39:12,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:39:12,041 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:12,042 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 [2022-11-26 00:39:12,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:39:12,059 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 [2022-11-26 00:39:12,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:39:12,071 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 [2022-11-26 00:39:12,090 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 [2022-11-26 00:39:12,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:12,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:39:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:12,123 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:39:12,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-26 00:39:12,182 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 [2022-11-26 00:39:12,188 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 [2022-11-26 00:39:12,192 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 [2022-11-26 00:39:12,459 INFO L321 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2022-11-26 00:39:12,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 286 treesize of output 378 [2022-11-26 00:39:13,932 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:13,933 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 [2022-11-26 00:39:14,031 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:14,031 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 [2022-11-26 00:39:14,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:39:14,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-26 00:39:14,207 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:14,207 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 [2022-11-26 00:39:14,276 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:14,276 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 [2022-11-26 00:39:14,313 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:39:14,413 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:14,414 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 [2022-11-26 00:39:14,467 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:39:14,504 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:39:14,528 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:39:14,579 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:39:14,643 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:14,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:14,722 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:14,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:14,913 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:14,913 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 [2022-11-26 00:39:14,987 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:14,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:15,055 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:15,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:15,115 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:15,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:15,172 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:15,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:15,266 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:15,266 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 [2022-11-26 00:39:15,375 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:15,376 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 [2022-11-26 00:39:15,484 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:39:15,485 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 [2022-11-26 00:39:15,540 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:39:15,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:39:16,029 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 [2022-11-26 00:39:16,034 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 [2022-11-26 00:39:16,039 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 [2022-11-26 00:39:16,054 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 [2022-11-26 00:39:16,083 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:39:16,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-26 00:39:16,104 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:39:16,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-26 00:39:16,145 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:39:21,618 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22297#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-26 00:39:21,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:39:21,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:39:21,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 37 [2022-11-26 00:39:21,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221084690] [2022-11-26 00:39:21,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:39:21,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-26 00:39:21,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-26 00:39:21,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=3471, Unknown=36, NotChecked=372, Total=4290 [2022-11-26 00:39:21,622 INFO L87 Difference]: Start difference. First operand 376 states and 466 transitions. Second operand has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:39:33,129 WARN L233 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 55 DAG size of output: 53 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:39:39,732 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 [0, 1] [2022-11-26 00:39:41,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-26 00:39:43,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-26 00:39:46,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:39:52,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:39:54,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:39:56,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:39:58,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:00,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:08,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:10,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:12,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:15,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:40:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:40:21,547 INFO L93 Difference]: Finished difference Result 714 states and 832 transitions. [2022-11-26 00:40:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-26 00:40:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-26 00:40:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:40:21,560 INFO L225 Difference]: With dead ends: 714 [2022-11-26 00:40:21,560 INFO L226 Difference]: Without dead ends: 714 [2022-11-26 00:40:21,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 80 SyntacticMatches, 6 SemanticMatches, 90 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2727 ImplicationChecksByTransitivity, 39.9s TimeCoverageRelationStatistics Valid=861, Invalid=6921, Unknown=62, NotChecked=528, Total=8372 [2022-11-26 00:40:21,563 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1139 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 75 mSolverCounterUnsat, 48 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 48 IncrementalHoareTripleChecker+Unknown, 767 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:40:21,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1557 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2203 Invalid, 48 Unknown, 767 Unchecked, 28.9s Time] [2022-11-26 00:40:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-11-26 00:40:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 461. [2022-11-26 00:40:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 437 states have (on average 1.3524027459954233) internal successors, (591), 460 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:40:21,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 591 transitions. [2022-11-26 00:40:21,580 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 591 transitions. Word has length 44 [2022-11-26 00:40:21,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:40:21,583 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 591 transitions. [2022-11-26 00:40:21,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 38 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:40:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 591 transitions. [2022-11-26 00:40:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-26 00:40:21,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:40:21,584 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] [2022-11-26 00:40:21,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:40:21,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:21,792 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:40:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:40:21,793 INFO L85 PathProgramCache]: Analyzing trace with hash -907190749, now seen corresponding path program 1 times [2022-11-26 00:40:21,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:40:21,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597092000] [2022-11-26 00:40:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:21,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:40:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:23,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:40:23,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597092000] [2022-11-26 00:40:23,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597092000] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:40:23,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102259703] [2022-11-26 00:40:23,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:40:23,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:40:23,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:40:23,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:40:23,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:40:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:40:23,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-26 00:40:23,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:40:23,241 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 [2022-11-26 00:40:23,297 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:40:23,297 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 [2022-11-26 00:40:23,313 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 [2022-11-26 00:40:23,355 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 [2022-11-26 00:40:23,368 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 [2022-11-26 00:40:23,495 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:40:23,495 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 [2022-11-26 00:40:23,507 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 [2022-11-26 00:40:23,598 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:40:23,598 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 [2022-11-26 00:40:23,603 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 [2022-11-26 00:40:23,816 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-26 00:40:23,817 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 [2022-11-26 00:40:23,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-26 00:40:23,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:23,913 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 [2022-11-26 00:40:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:23,930 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 [2022-11-26 00:40:24,130 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:40:24,131 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 [2022-11-26 00:40:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:24,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:40:24,382 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:40:24,382 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 [2022-11-26 00:40:24,390 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 [2022-11-26 00:40:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:24,824 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 [2022-11-26 00:40:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:24,831 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 [2022-11-26 00:40:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:24,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:40:25,073 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 4))))) is different from false [2022-11-26 00:40:25,135 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2022-11-26 00:40:25,150 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|))) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1447 (Array Int Int)) (v_ArrVal_1446 (Array Int Int))) (<= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1446) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) (forall ((v_ArrVal_1447 (Array Int Int))) (<= 0 (+ (select (select (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1447) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))))) is different from false [2022-11-26 00:40:43,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:40:43,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 175 [2022-11-26 00:40:43,447 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:40:43,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 115 [2022-11-26 00:40:43,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 624 treesize of output 594 [2022-11-26 00:40:43,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1316 treesize of output 1298 [2022-11-26 00:40:43,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1242 treesize of output 1178 [2022-11-26 00:40:43,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1130 treesize of output 1066 [2022-11-26 00:40:43,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1050 treesize of output 1014 [2022-11-26 00:40:43,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 954 [2022-11-26 00:40:43,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 938 treesize of output 822 [2022-11-26 00:40:43,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:43,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 758 treesize of output 646 [2022-11-26 00:40:44,037 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:40:44,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 83 [2022-11-26 00:40:44,046 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:40:44,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 63 [2022-11-26 00:40:44,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 90 [2022-11-26 00:40:44,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:44,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 146 [2022-11-26 00:40:44,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 82 [2022-11-26 00:40:44,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:44,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 101 [2022-11-26 00:40:44,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:44,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 91 [2022-11-26 00:40:44,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:44,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-11-26 00:40:50,301 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:40:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:40:54,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102259703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:40:54,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1939134993] [2022-11-26 00:40:54,421 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-26 00:40:54,421 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:40:54,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:40:54,421 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:40:54,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:40:54,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:40:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-26 00:40:54,477 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 [2022-11-26 00:40:54,483 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 [2022-11-26 00:40:54,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,533 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 [2022-11-26 00:40:54,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,551 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 [2022-11-26 00:40:54,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,560 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 [2022-11-26 00:40:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,570 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 [2022-11-26 00:40:54,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,610 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 00:40:54,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 127 [2022-11-26 00:40:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2022-11-26 00:40:54,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,635 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 [2022-11-26 00:40:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:54,678 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-26 00:40:54,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2022-11-26 00:40:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,704 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-26 00:40:54,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2022-11-26 00:40:54,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,717 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 [2022-11-26 00:40:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,794 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 [2022-11-26 00:40:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:54,853 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-26 00:40:54,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 111 [2022-11-26 00:40:54,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2022-11-26 00:40:54,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,897 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 [2022-11-26 00:40:54,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:54,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:54,964 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-26 00:40:54,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 199 treesize of output 130 [2022-11-26 00:40:54,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:54,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 65 [2022-11-26 00:40:55,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,012 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 [2022-11-26 00:40:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,077 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 34 treesize of output 21 [2022-11-26 00:40:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,123 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-11-26 00:40:55,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 176 treesize of output 130 [2022-11-26 00:40:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-26 00:40:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 62 [2022-11-26 00:40:55,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,285 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 [2022-11-26 00:40:55,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,341 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-26 00:40:55,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 164 [2022-11-26 00:40:55,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 77 [2022-11-26 00:40:55,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,533 INFO L321 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2022-11-26 00:40:55,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 359 treesize of output 219 [2022-11-26 00:40:55,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 93 [2022-11-26 00:40:55,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,595 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 [2022-11-26 00:40:55,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,893 INFO L321 Elim1Store]: treesize reduction 192, result has 12.7 percent of original size [2022-11-26 00:40:55,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 742 treesize of output 531 [2022-11-26 00:40:55,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:55,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:55,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:56,079 INFO L321 Elim1Store]: treesize reduction 278, result has 13.1 percent of original size [2022-11-26 00:40:56,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 734 treesize of output 721 [2022-11-26 00:40:56,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 732 treesize of output 711 [2022-11-26 00:40:56,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,630 INFO L321 Elim1Store]: treesize reduction 406, result has 10.8 percent of original size [2022-11-26 00:40:56,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 758 treesize of output 760 [2022-11-26 00:40:56,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:56,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:56,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:56,977 INFO L321 Elim1Store]: treesize reduction 296, result has 16.1 percent of original size [2022-11-26 00:40:56,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 906 treesize of output 625 [2022-11-26 00:40:57,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:57,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:57,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:57,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:57,252 INFO L321 Elim1Store]: treesize reduction 438, result has 12.9 percent of original size [2022-11-26 00:40:57,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 842 treesize of output 817 [2022-11-26 00:40:57,341 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:40:57,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 829 treesize of output 812 [2022-11-26 00:40:57,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:57,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:57,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:58,232 INFO L321 Elim1Store]: treesize reduction 622, result has 11.8 percent of original size [2022-11-26 00:40:58,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1674 treesize of output 975 [2022-11-26 00:40:58,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:58,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:40:58,783 INFO L321 Elim1Store]: treesize reduction 758, result has 10.5 percent of original size [2022-11-26 00:40:58,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1180 treesize of output 1041 [2022-11-26 00:40:58,914 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-26 00:40:58,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1115 treesize of output 1098 [2022-11-26 00:40:59,228 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 13 treesize of output 9 [2022-11-26 00:40:59,232 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 [2022-11-26 00:40:59,237 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 [2022-11-26 00:40:59,274 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:40:59,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:40:59,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-26 00:40:59,291 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 [2022-11-26 00:40:59,295 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 [2022-11-26 00:40:59,302 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 [2022-11-26 00:40:59,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:59,341 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:40:59,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2022-11-26 00:40:59,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:40:59,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:40:59,364 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 [2022-11-26 00:40:59,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:40:59,421 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 [2022-11-26 00:40:59,426 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 [2022-11-26 00:40:59,748 INFO L321 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2022-11-26 00:40:59,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 286 treesize of output 378 [2022-11-26 00:41:01,464 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:01,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:41:01,495 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:01,495 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 [2022-11-26 00:41:01,535 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,569 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,583 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,598 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,647 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:01,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:41:01,675 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:01,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:01,773 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,789 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:41:01,829 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:01,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:01,856 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:01,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:01,887 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:01,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:01,916 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:01,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:01,981 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:01,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 159 treesize of output 161 [2022-11-26 00:41:02,049 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:02,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 143 [2022-11-26 00:41:02,118 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,167 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,230 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 1 [2022-11-26 00:41:02,302 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:02,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:41:02,347 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:02,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-26 00:41:02,452 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,503 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 1 [2022-11-26 00:41:02,601 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:02,601 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 [2022-11-26 00:41:02,654 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:02,655 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 [2022-11-26 00:41:02,701 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,738 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,784 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,834 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:02,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:02,912 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:02,913 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 [2022-11-26 00:41:03,029 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,029 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 [2022-11-26 00:41:03,141 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,141 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 [2022-11-26 00:41:03,199 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,199 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 [2022-11-26 00:41:03,258 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:03,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:03,303 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:03,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:03,353 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:03,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:03,417 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:41:03,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-11-26 00:41:03,517 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 165 treesize of output 167 [2022-11-26 00:41:03,615 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,616 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 [2022-11-26 00:41:03,707 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:03,707 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 [2022-11-26 00:41:04,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:41:04,151 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 [2022-11-26 00:41:04,155 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 [2022-11-26 00:41:04,186 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-26 00:41:04,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-11-26 00:41:04,215 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:41:04,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-11-26 00:41:04,231 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 [2022-11-26 00:41:04,238 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:41:10,329 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23856#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (or (not (<= 0 (+ |ULTIMATE.start_main_~inner~0#1.offset| 4))) (not (<= (+ |ULTIMATE.start_main_~inner~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~inner~0#1.base|)))) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-26 00:41:10,330 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:41:10,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:41:10,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 40 [2022-11-26 00:41:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101232170] [2022-11-26 00:41:10,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:41:10,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-26 00:41:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:41:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-26 00:41:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=3993, Unknown=19, NotChecked=396, Total=4830 [2022-11-26 00:41:10,332 INFO L87 Difference]: Start difference. First operand 461 states and 591 transitions. Second operand has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:21,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:21,153 INFO L93 Difference]: Finished difference Result 828 states and 996 transitions. [2022-11-26 00:41:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-26 00:41:21,154 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-26 00:41:21,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:21,156 INFO L225 Difference]: With dead ends: 828 [2022-11-26 00:41:21,157 INFO L226 Difference]: Without dead ends: 828 [2022-11-26 00:41:21,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 3015 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=1211, Invalid=8880, Unknown=21, NotChecked=600, Total=10712 [2022-11-26 00:41:21,160 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1774 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 162 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 828 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:21,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 1870 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2917 Invalid, 3 Unknown, 828 Unchecked, 4.9s Time] [2022-11-26 00:41:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-11-26 00:41:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 519. [2022-11-26 00:41:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 496 states have (on average 1.3528225806451613) internal successors, (671), 518 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 671 transitions. [2022-11-26 00:41:21,171 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 671 transitions. Word has length 44 [2022-11-26 00:41:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:21,171 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 671 transitions. [2022-11-26 00:41:21,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.2195121951219514) internal successors, (132), 41 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 671 transitions. [2022-11-26 00:41:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-26 00:41:21,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:21,172 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] [2022-11-26 00:41:21,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:41:21,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:21,378 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:41:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 578224848, now seen corresponding path program 1 times [2022-11-26 00:41:21,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:21,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868615828] [2022-11-26 00:41:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:21,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:41:22,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:41:22,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868615828] [2022-11-26 00:41:22,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868615828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:41:22,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:41:22,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:41:22,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197544909] [2022-11-26 00:41:22,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:41:22,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:41:22,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:41:22,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:41:22,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:41:22,088 INFO L87 Difference]: Start difference. First operand 519 states and 671 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:41:22,776 INFO L93 Difference]: Finished difference Result 544 states and 686 transitions. [2022-11-26 00:41:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:41:22,777 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 [2022-11-26 00:41:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:41:22,780 INFO L225 Difference]: With dead ends: 544 [2022-11-26 00:41:22,780 INFO L226 Difference]: Without dead ends: 544 [2022-11-26 00:41:22,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:41:22,781 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 342 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:41:22,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 443 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:41:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-11-26 00:41:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 519. [2022-11-26 00:41:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 496 states have (on average 1.3508064516129032) internal successors, (670), 518 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 670 transitions. [2022-11-26 00:41:22,801 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 670 transitions. Word has length 46 [2022-11-26 00:41:22,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:41:22,801 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 670 transitions. [2022-11-26 00:41:22,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:41:22,801 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 670 transitions. [2022-11-26 00:41:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-26 00:41:22,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:41:22,802 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] [2022-11-26 00:41:22,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-26 00:41:22,803 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2022-11-26 00:41:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:41:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash 68058082, now seen corresponding path program 1 times [2022-11-26 00:41:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:41:22,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126175084] [2022-11-26 00:41:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:22,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:41:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:41:24,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:41:24,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126175084] [2022-11-26 00:41:24,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126175084] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:41:24,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920873487] [2022-11-26 00:41:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:41:24,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:41:24,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:24,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:41:24,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68d14dcb-3c2b-4366-9228-a2cb1e31b7cd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:41:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:41:24,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-26 00:41:24,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:41:24,587 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 [2022-11-26 00:41:24,646 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:41:24,647 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 [2022-11-26 00:41:24,701 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 [2022-11-26 00:41:24,706 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 [2022-11-26 00:41:24,830 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:41:24,830 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 [2022-11-26 00:41:24,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-26 00:41:24,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:24,945 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-26 00:41:24,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 56 [2022-11-26 00:41:24,953 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 [2022-11-26 00:41:25,218 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-26 00:41:25,218 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 [2022-11-26 00:41:25,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:25,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:25,320 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 00:41:25,320 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 [2022-11-26 00:41:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:25,327 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 [2022-11-26 00:41:25,549 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-26 00:41:25,549 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 [2022-11-26 00:41:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:25,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2022-11-26 00:41:25,806 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-26 00:41:25,806 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 [2022-11-26 00:41:25,813 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 [2022-11-26 00:41:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:26,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:26,512 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-26 00:41:26,512 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 [2022-11-26 00:41:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:26,526 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-26 00:41:26,526 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 [2022-11-26 00:41:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:41:26,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:41:26,761 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1590))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1591) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))) 0)) (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= 0 (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1591))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1590) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4)))))) is different from false [2022-11-26 00:41:26,823 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1590))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1591) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) (+ (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 4))) 0)) (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= (select (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1591))) (select .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (+ (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1590) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 4)) 0)))) is different from false [2022-11-26 00:41:26,841 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|))) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) (.cse3 (store |c_#memory_$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|)))) (and (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= 0 (select (let ((.cse0 (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1591))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ 4 (select (select (store .cse3 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1590) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))))) (forall ((v_ArrVal_1591 (Array Int Int)) (v_ArrVal_1590 (Array Int Int))) (= (let ((.cse4 (store .cse3 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1590))) (select (select .cse4 (select (select (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1591) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) (+ 4 (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))) 0)))) is different from false [2022-11-26 00:41:42,633 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:41:42,633 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 612 treesize of output 523 [2022-11-26 00:41:42,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:41:42,643 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 512 treesize of output 323 [2022-11-26 00:41:42,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:43,186 INFO L321 Elim1Store]: treesize reduction 285, result has 36.5 percent of original size [2022-11-26 00:41:43,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 28 case distinctions, treesize of input 1043918 treesize of output 989694 [2022-11-26 00:41:45,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:41:45,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:41:45,709 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:41:45,714 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 7071112 treesize of output 6590102 [2022-11-26 00:42:02,655 WARN L233 SmtUtils]: Spent 16.94s on a formula simplification that was a NOOP. DAG size: 3044 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:42:03,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:42:03,480 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 6950250 treesize of output 6221042 [2022-11-26 00:48:26,333 WARN L233 SmtUtils]: Spent 6.38m on a formula simplification. DAG size of input: 3095 DAG size of output: 3092 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:48:26,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:48:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:28,123 INFO L321 Elim1Store]: treesize reduction 44, result has 85.1 percent of original size [2022-11-26 00:48:28,126 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 6 new quantified variables, introduced 15 case distinctions, treesize of input 5785934 treesize of output 5016259