./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:22:42,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:22:42,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:22:42,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:22:42,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:22:42,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:22:42,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:22:42,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:22:42,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:22:42,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:22:42,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:22:42,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:22:42,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:22:42,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:22:42,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:22:42,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:22:42,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:22:42,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:22:42,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:22:42,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:22:42,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:22:42,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:22:42,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:22:42,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:22:42,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:22:42,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:22:42,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:22:42,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:22:42,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:22:42,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:22:42,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:22:42,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:22:42,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:22:42,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:22:42,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:22:42,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:22:42,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:22:42,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:22:42,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:22:42,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:22:42,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:22:42,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:22:42,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:22:42,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:22:42,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:22:42,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:22:42,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:22:42,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:22:42,654 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:22:42,655 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:22:42,655 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:22:42,655 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:22:42,655 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:22:42,655 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:22:42,656 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:22:42,656 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:22:42,656 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:22:42,656 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:22:42,662 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:22:42,663 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:22:42,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:22:42,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:22:42,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:22:42,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:22:42,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:22:42,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:22:42,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:22:42,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:22:42,667 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:22:42,668 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:22:42,668 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:22:42,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:22:42,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:22:42,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:22:42,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:22:42,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:22:42,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:22:42,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:22:42,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:22:42,671 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:22:42,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:22:42,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:22:42,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:22:42,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:22:42,672 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_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2022-11-19 08:22:42,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:22:42,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:22:42,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:22:42,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:22:42,976 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:22:42,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2022-11-19 08:22:43,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/data/cde925ad0/c7821cacf08c445289017deef7660ba6/FLAG592978b99 [2022-11-19 08:22:43,675 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:22:43,676 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i [2022-11-19 08:22:43,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/data/cde925ad0/c7821cacf08c445289017deef7660ba6/FLAG592978b99 [2022-11-19 08:22:43,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/data/cde925ad0/c7821cacf08c445289017deef7660ba6 [2022-11-19 08:22:43,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:22:43,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:22:43,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:22:43,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:22:43,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:22:43,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:22:43" (1/1) ... [2022-11-19 08:22:43,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c850dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:43, skipping insertion in model container [2022-11-19 08:22:43,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:22:43" (1/1) ... [2022-11-19 08:22:43,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:22:44,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:22:44,378 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-11-19 08:22:44,398 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-11-19 08:22:44,402 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-11-19 08:22:44,403 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-11-19 08:22:44,409 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-11-19 08:22:44,412 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-11-19 08:22:44,416 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-11-19 08:22:44,418 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-11-19 08:22:44,419 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-11-19 08:22:44,421 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-11-19 08:22:44,426 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-11-19 08:22:44,427 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-11-19 08:22:44,430 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-11-19 08:22:44,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:22:44,454 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:22:44,513 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2022-11-19 08:22:44,517 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2022-11-19 08:22:44,525 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2022-11-19 08:22:44,529 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2022-11-19 08:22:44,531 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2022-11-19 08:22:44,535 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2022-11-19 08:22:44,538 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2022-11-19 08:22:44,541 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2022-11-19 08:22:44,543 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2022-11-19 08:22:44,545 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2022-11-19 08:22:44,547 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2022-11-19 08:22:44,549 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2022-11-19 08:22:44,551 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2022-11-19 08:22:44,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:22:44,586 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:22:44,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44 WrapperNode [2022-11-19 08:22:44,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:22:44,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:22:44,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:22:44,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:22:44,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,672 INFO L138 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2022-11-19 08:22:44,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:22:44,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:22:44,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:22:44,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:22:44,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:22:44,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:22:44,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:22:44,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:22:44,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (1/1) ... [2022-11-19 08:22:44,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:22:44,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:44,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:22:44,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:22:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:22:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:22:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:22:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:22:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:22:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:22:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:22:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:22:44,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:22:44,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:22:45,604 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:22:45,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:22:45,680 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-19 08:22:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:22:45 BoogieIcfgContainer [2022-11-19 08:22:45,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:22:45,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:22:45,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:22:45,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:22:45,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:22:43" (1/3) ... [2022-11-19 08:22:45,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a059610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:22:45, skipping insertion in model container [2022-11-19 08:22:45,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:22:44" (2/3) ... [2022-11-19 08:22:45,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a059610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:22:45, skipping insertion in model container [2022-11-19 08:22:45,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:22:45" (3/3) ... [2022-11-19 08:22:45,693 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2022-11-19 08:22:45,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:22:45,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2022-11-19 08:22:45,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:22:45,769 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;@4bbf1b63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:22:45,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-11-19 08:22:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 94 states have (on average 2.4361702127659575) internal successors, (229), 180 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:45,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:22:45,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:45,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:22:45,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:45,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:45,787 INFO L85 PathProgramCache]: Analyzing trace with hash 15008, now seen corresponding path program 1 times [2022-11-19 08:22:45,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:45,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710789513] [2022-11-19 08:22:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:45,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:46,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:46,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710789513] [2022-11-19 08:22:46,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710789513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:46,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:46,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:22:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549101540] [2022-11-19 08:22:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:46,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:46,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:46,086 INFO L87 Difference]: Start difference. First operand has 181 states, 94 states have (on average 2.4361702127659575) internal successors, (229), 180 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:46,366 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2022-11-19 08:22:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-19 08:22:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:46,377 INFO L225 Difference]: With dead ends: 177 [2022-11-19 08:22:46,377 INFO L226 Difference]: Without dead ends: 175 [2022-11-19 08:22:46,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:46,382 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 169 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:46,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:46,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-19 08:22:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2022-11-19 08:22:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 96 states have (on average 1.8958333333333333) internal successors, (182), 171 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2022-11-19 08:22:46,455 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 2 [2022-11-19 08:22:46,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:46,455 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2022-11-19 08:22:46,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2022-11-19 08:22:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:22:46,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:46,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:22:46,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:22:46,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash 15009, now seen corresponding path program 1 times [2022-11-19 08:22:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:46,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492753520] [2022-11-19 08:22:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:46,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:46,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:46,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492753520] [2022-11-19 08:22:46,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492753520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:46,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:46,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:22:46,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546868266] [2022-11-19 08:22:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:46,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:46,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:46,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:46,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:46,624 INFO L87 Difference]: Start difference. First operand 172 states and 182 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:46,846 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2022-11-19 08:22:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:46,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-19 08:22:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:46,848 INFO L225 Difference]: With dead ends: 198 [2022-11-19 08:22:46,848 INFO L226 Difference]: Without dead ends: 198 [2022-11-19 08:22:46,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:46,850 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 160 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:46,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 120 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-19 08:22:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2022-11-19 08:22:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 111 states have (on average 1.8018018018018018) internal successors, (200), 178 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 200 transitions. [2022-11-19 08:22:46,866 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 200 transitions. Word has length 2 [2022-11-19 08:22:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:46,866 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 200 transitions. [2022-11-19 08:22:46,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 200 transitions. [2022-11-19 08:22:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:22:46,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:46,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:22:46,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:22:46,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:46,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash 447079752, now seen corresponding path program 1 times [2022-11-19 08:22:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:46,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122353122] [2022-11-19 08:22:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:46,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:46,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122353122] [2022-11-19 08:22:46,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122353122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:46,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:46,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:22:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239298079] [2022-11-19 08:22:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:46,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:46,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:46,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:46,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:46,932 INFO L87 Difference]: Start difference. First operand 179 states and 200 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:47,047 INFO L93 Difference]: Finished difference Result 194 states and 203 transitions. [2022-11-19 08:22:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:47,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 08:22:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:47,052 INFO L225 Difference]: With dead ends: 194 [2022-11-19 08:22:47,052 INFO L226 Difference]: Without dead ends: 194 [2022-11-19 08:22:47,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:47,057 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 157 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:47,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 160 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-19 08:22:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2022-11-19 08:22:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 110 states have (on average 1.790909090909091) internal successors, (197), 176 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2022-11-19 08:22:47,073 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 5 [2022-11-19 08:22:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:47,074 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2022-11-19 08:22:47,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2022-11-19 08:22:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:22:47,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:47,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:47,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:22:47,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -432269896, now seen corresponding path program 1 times [2022-11-19 08:22:47,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148132] [2022-11-19 08:22:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:47,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:47,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148132] [2022-11-19 08:22:47,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:47,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:47,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593350459] [2022-11-19 08:22:47,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:47,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:22:47,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:22:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:47,386 INFO L87 Difference]: Start difference. First operand 177 states and 197 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:47,636 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2022-11-19 08:22:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:22:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:22:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:47,638 INFO L225 Difference]: With dead ends: 176 [2022-11-19 08:22:47,638 INFO L226 Difference]: Without dead ends: 176 [2022-11-19 08:22:47,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:47,640 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:47,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 425 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-19 08:22:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-11-19 08:22:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 110 states have (on average 1.7818181818181817) internal successors, (196), 175 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2022-11-19 08:22:47,688 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 10 [2022-11-19 08:22:47,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:47,688 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2022-11-19 08:22:47,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:47,688 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2022-11-19 08:22:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:22:47,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:47,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:47,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:22:47,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:47,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:47,690 INFO L85 PathProgramCache]: Analyzing trace with hash -432269895, now seen corresponding path program 1 times [2022-11-19 08:22:47,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:47,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405937803] [2022-11-19 08:22:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:47,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:48,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:48,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405937803] [2022-11-19 08:22:48,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405937803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:48,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:48,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112204307] [2022-11-19 08:22:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:48,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:22:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:22:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:48,024 INFO L87 Difference]: Start difference. First operand 176 states and 196 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:48,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:48,283 INFO L93 Difference]: Finished difference Result 175 states and 195 transitions. [2022-11-19 08:22:48,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:22:48,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:22:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:48,284 INFO L225 Difference]: With dead ends: 175 [2022-11-19 08:22:48,284 INFO L226 Difference]: Without dead ends: 175 [2022-11-19 08:22:48,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:48,286 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:48,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-19 08:22:48,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-19 08:22:48,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 110 states have (on average 1.7727272727272727) internal successors, (195), 174 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 195 transitions. [2022-11-19 08:22:48,307 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 195 transitions. Word has length 10 [2022-11-19 08:22:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:48,307 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 195 transitions. [2022-11-19 08:22:48,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 195 transitions. [2022-11-19 08:22:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:22:48,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:48,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:48,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:22:48,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863745, now seen corresponding path program 1 times [2022-11-19 08:22:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:48,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83241606] [2022-11-19 08:22:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:48,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:48,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:48,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:48,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83241606] [2022-11-19 08:22:48,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83241606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:48,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:48,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:22:48,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314851953] [2022-11-19 08:22:48,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:48,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:22:48,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:48,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:22:48,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:22:48,699 INFO L87 Difference]: Start difference. First operand 175 states and 195 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:49,144 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-11-19 08:22:49,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:22:49,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:22:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:49,146 INFO L225 Difference]: With dead ends: 174 [2022-11-19 08:22:49,146 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 08:22:49,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:22:49,147 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 151 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:49,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 530 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:22:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 08:22:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-19 08:22:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 110 states have (on average 1.7636363636363637) internal successors, (194), 173 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-11-19 08:22:49,153 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-11-19 08:22:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:49,154 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-11-19 08:22:49,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-11-19 08:22:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:22:49,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:49,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:49,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:22:49,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863746, now seen corresponding path program 1 times [2022-11-19 08:22:49,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:49,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277080187] [2022-11-19 08:22:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:49,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:49,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:49,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277080187] [2022-11-19 08:22:49,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277080187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:49,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:49,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:22:49,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780966737] [2022-11-19 08:22:49,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:22:49,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:22:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:22:49,584 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:50,107 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2022-11-19 08:22:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:22:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:22:50,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:50,108 INFO L225 Difference]: With dead ends: 173 [2022-11-19 08:22:50,108 INFO L226 Difference]: Without dead ends: 173 [2022-11-19 08:22:50,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:22:50,109 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 148 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:50,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 435 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:22:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-19 08:22:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-11-19 08:22:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.7545454545454546) internal successors, (193), 172 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-11-19 08:22:50,113 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 12 [2022-11-19 08:22:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:50,114 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-11-19 08:22:50,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-11-19 08:22:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:22:50,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:50,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:50,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:22:50,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:50,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash 678271813, now seen corresponding path program 1 times [2022-11-19 08:22:50,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:50,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444853469] [2022-11-19 08:22:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:50,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:50,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:50,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444853469] [2022-11-19 08:22:50,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444853469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:50,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:50,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031343092] [2022-11-19 08:22:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:50,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:50,147 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:50,197 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2022-11-19 08:22:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:22:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:50,199 INFO L225 Difference]: With dead ends: 174 [2022-11-19 08:22:50,199 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 08:22:50,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:50,200 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:50,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:22:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 08:22:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-19 08:22:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 111 states have (on average 1.7477477477477477) internal successors, (194), 173 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-11-19 08:22:50,205 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2022-11-19 08:22:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:50,205 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-11-19 08:22:50,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-11-19 08:22:50,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:22:50,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:50,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:22:50,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash -447972018, now seen corresponding path program 1 times [2022-11-19 08:22:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:50,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550016541] [2022-11-19 08:22:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:50,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:50,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:50,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550016541] [2022-11-19 08:22:50,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550016541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:50,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:50,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:22:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536433603] [2022-11-19 08:22:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:50,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:22:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:22:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:50,312 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:50,475 INFO L93 Difference]: Finished difference Result 258 states and 283 transitions. [2022-11-19 08:22:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:22:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:22:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:50,477 INFO L225 Difference]: With dead ends: 258 [2022-11-19 08:22:50,477 INFO L226 Difference]: Without dead ends: 258 [2022-11-19 08:22:50,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:50,477 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 171 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:50,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 355 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-19 08:22:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 171. [2022-11-19 08:22:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 109 states have (on average 1.7522935779816513) internal successors, (191), 170 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 191 transitions. [2022-11-19 08:22:50,484 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 191 transitions. Word has length 13 [2022-11-19 08:22:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 191 transitions. [2022-11-19 08:22:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 191 transitions. [2022-11-19 08:22:50,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:22:50,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:50,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:50,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:22:50,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:50,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1118637745, now seen corresponding path program 1 times [2022-11-19 08:22:50,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:50,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709379210] [2022-11-19 08:22:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:50,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:50,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709379210] [2022-11-19 08:22:50,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709379210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:50,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:50,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:50,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058621359] [2022-11-19 08:22:50,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:50,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:22:50,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:50,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:22:50,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:50,652 INFO L87 Difference]: Start difference. First operand 171 states and 191 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:50,802 INFO L93 Difference]: Finished difference Result 258 states and 282 transitions. [2022-11-19 08:22:50,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:22:50,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 08:22:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:50,803 INFO L225 Difference]: With dead ends: 258 [2022-11-19 08:22:50,803 INFO L226 Difference]: Without dead ends: 258 [2022-11-19 08:22:50,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:50,804 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 87 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:50,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 358 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-19 08:22:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 173. [2022-11-19 08:22:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 111 states have (on average 1.7387387387387387) internal successors, (193), 172 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2022-11-19 08:22:50,809 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 16 [2022-11-19 08:22:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:50,809 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2022-11-19 08:22:50,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2022-11-19 08:22:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:22:50,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:50,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:50,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:22:50,811 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385624, now seen corresponding path program 1 times [2022-11-19 08:22:50,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:50,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506241469] [2022-11-19 08:22:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:50,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:50,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:50,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506241469] [2022-11-19 08:22:50,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506241469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:50,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:50,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:22:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688523453] [2022-11-19 08:22:50,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:50,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:22:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:50,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:22:50,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:50,932 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:51,097 INFO L93 Difference]: Finished difference Result 166 states and 185 transitions. [2022-11-19 08:22:51,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:22:51,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 08:22:51,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:51,099 INFO L225 Difference]: With dead ends: 166 [2022-11-19 08:22:51,099 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 08:22:51,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:51,100 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 225 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:51,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 84 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:51,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 08:22:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2022-11-19 08:22:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 113 states have (on average 1.6194690265486726) internal successors, (183), 162 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 183 transitions. [2022-11-19 08:22:51,104 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 183 transitions. Word has length 17 [2022-11-19 08:22:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:51,105 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 183 transitions. [2022-11-19 08:22:51,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 183 transitions. [2022-11-19 08:22:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:22:51,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:51,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:51,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:22:51,106 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385625, now seen corresponding path program 1 times [2022-11-19 08:22:51,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:51,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297434923] [2022-11-19 08:22:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:51,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:51,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:51,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297434923] [2022-11-19 08:22:51,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297434923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:51,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:51,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:22:51,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296352271] [2022-11-19 08:22:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:51,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:22:51,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:22:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:51,280 INFO L87 Difference]: Start difference. First operand 163 states and 183 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:51,498 INFO L93 Difference]: Finished difference Result 216 states and 228 transitions. [2022-11-19 08:22:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:22:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 08:22:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:51,500 INFO L225 Difference]: With dead ends: 216 [2022-11-19 08:22:51,500 INFO L226 Difference]: Without dead ends: 216 [2022-11-19 08:22:51,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:51,501 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 209 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:51,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 154 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-19 08:22:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2022-11-19 08:22:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 132 states have (on average 1.628787878787879) internal successors, (215), 181 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2022-11-19 08:22:51,506 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 17 [2022-11-19 08:22:51,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:51,506 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2022-11-19 08:22:51,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,506 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2022-11-19 08:22:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:22:51,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:51,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:51,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:22:51,507 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:51,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:51,508 INFO L85 PathProgramCache]: Analyzing trace with hash -282688741, now seen corresponding path program 1 times [2022-11-19 08:22:51,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:51,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33947909] [2022-11-19 08:22:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:51,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:51,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:51,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33947909] [2022-11-19 08:22:51,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33947909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:51,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:51,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638400691] [2022-11-19 08:22:51,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:51,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:22:51,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:22:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:51,641 INFO L87 Difference]: Start difference. First operand 182 states and 215 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:51,826 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2022-11-19 08:22:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:22:51,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:22:51,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:51,828 INFO L225 Difference]: With dead ends: 181 [2022-11-19 08:22:51,828 INFO L226 Difference]: Without dead ends: 181 [2022-11-19 08:22:51,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:51,829 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 6 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:51,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 368 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-19 08:22:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-19 08:22:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 132 states have (on average 1.6136363636363635) internal successors, (213), 180 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2022-11-19 08:22:51,833 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 19 [2022-11-19 08:22:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:51,833 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2022-11-19 08:22:51,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2022-11-19 08:22:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:22:51,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:51,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:51,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:22:51,835 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:51,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:51,835 INFO L85 PathProgramCache]: Analyzing trace with hash -282688740, now seen corresponding path program 1 times [2022-11-19 08:22:51,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:51,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864862595] [2022-11-19 08:22:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:51,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:52,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:52,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864862595] [2022-11-19 08:22:52,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864862595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:52,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:52,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:22:52,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097677042] [2022-11-19 08:22:52,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:52,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:22:52,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:22:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:52,027 INFO L87 Difference]: Start difference. First operand 181 states and 213 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:52,267 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2022-11-19 08:22:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:22:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:22:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:52,269 INFO L225 Difference]: With dead ends: 180 [2022-11-19 08:22:52,269 INFO L226 Difference]: Without dead ends: 180 [2022-11-19 08:22:52,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:52,270 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 3 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:52,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 355 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-19 08:22:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-19 08:22:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 132 states have (on average 1.5984848484848484) internal successors, (211), 179 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 211 transitions. [2022-11-19 08:22:52,275 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 211 transitions. Word has length 19 [2022-11-19 08:22:52,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:52,275 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 211 transitions. [2022-11-19 08:22:52,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 211 transitions. [2022-11-19 08:22:52,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:22:52,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:52,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:52,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:22:52,276 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:52,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:52,277 INFO L85 PathProgramCache]: Analyzing trace with hash -282972339, now seen corresponding path program 1 times [2022-11-19 08:22:52,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:52,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243662729] [2022-11-19 08:22:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:52,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:52,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243662729] [2022-11-19 08:22:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243662729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:52,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:52,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:52,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757893948] [2022-11-19 08:22:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:52,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:22:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:52,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:22:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:22:52,329 INFO L87 Difference]: Start difference. First operand 180 states and 211 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:52,495 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-11-19 08:22:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:22:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:22:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:52,497 INFO L225 Difference]: With dead ends: 208 [2022-11-19 08:22:52,497 INFO L226 Difference]: Without dead ends: 208 [2022-11-19 08:22:52,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:22:52,498 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 195 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:52,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 204 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-19 08:22:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2022-11-19 08:22:52,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 131 states have (on average 1.5877862595419847) internal successors, (208), 177 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2022-11-19 08:22:52,503 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 19 [2022-11-19 08:22:52,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:52,503 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2022-11-19 08:22:52,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:52,503 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2022-11-19 08:22:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:22:52,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:52,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:52,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:22:52,504 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:52,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:52,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590815, now seen corresponding path program 1 times [2022-11-19 08:22:52,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:52,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933436158] [2022-11-19 08:22:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:52,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:52,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:52,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933436158] [2022-11-19 08:22:52,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933436158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:52,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:52,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:22:52,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47846882] [2022-11-19 08:22:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:52,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:22:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:22:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:22:52,740 INFO L87 Difference]: Start difference. First operand 178 states and 208 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:53,106 INFO L93 Difference]: Finished difference Result 177 states and 207 transitions. [2022-11-19 08:22:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:22:53,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:22:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:53,108 INFO L225 Difference]: With dead ends: 177 [2022-11-19 08:22:53,108 INFO L226 Difference]: Without dead ends: 177 [2022-11-19 08:22:53,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:22:53,108 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 218 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:53,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 255 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:22:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-19 08:22:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-11-19 08:22:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.5801526717557253) internal successors, (207), 176 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 207 transitions. [2022-11-19 08:22:53,113 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 207 transitions. Word has length 21 [2022-11-19 08:22:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:53,113 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 207 transitions. [2022-11-19 08:22:53,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 207 transitions. [2022-11-19 08:22:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:22:53,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:53,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:53,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:22:53,114 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:53,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590814, now seen corresponding path program 1 times [2022-11-19 08:22:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:53,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572169799] [2022-11-19 08:22:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:53,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:53,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:53,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572169799] [2022-11-19 08:22:53,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572169799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:53,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:53,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:22:53,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332188063] [2022-11-19 08:22:53,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:53,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:22:53,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:53,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:22:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:22:53,469 INFO L87 Difference]: Start difference. First operand 177 states and 207 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:54,023 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2022-11-19 08:22:54,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:22:54,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:22:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:54,025 INFO L225 Difference]: With dead ends: 168 [2022-11-19 08:22:54,025 INFO L226 Difference]: Without dead ends: 168 [2022-11-19 08:22:54,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:22:54,026 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 226 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:54,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 290 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:22:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-19 08:22:54,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2022-11-19 08:22:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 125 states have (on average 1.52) internal successors, (190), 160 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2022-11-19 08:22:54,033 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 21 [2022-11-19 08:22:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:54,034 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2022-11-19 08:22:54,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2022-11-19 08:22:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 08:22:54,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:54,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:54,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 08:22:54,037 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:54,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash 934315297, now seen corresponding path program 1 times [2022-11-19 08:22:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:54,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504703142] [2022-11-19 08:22:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:54,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:54,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504703142] [2022-11-19 08:22:54,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504703142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:54,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:54,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:22:54,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321479688] [2022-11-19 08:22:54,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:54,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:22:54,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:54,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:22:54,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:22:54,280 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:54,699 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2022-11-19 08:22:54,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:22:54,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 08:22:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:54,701 INFO L225 Difference]: With dead ends: 164 [2022-11-19 08:22:54,701 INFO L226 Difference]: Without dead ends: 164 [2022-11-19 08:22:54,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:22:54,702 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 215 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:54,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 254 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:22:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-19 08:22:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2022-11-19 08:22:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.5121951219512195) internal successors, (186), 156 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2022-11-19 08:22:54,707 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 23 [2022-11-19 08:22:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:54,708 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2022-11-19 08:22:54,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2022-11-19 08:22:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:22:54,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:54,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:54,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 08:22:54,709 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash -624849616, now seen corresponding path program 1 times [2022-11-19 08:22:54,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:54,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616533378] [2022-11-19 08:22:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:54,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:54,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616533378] [2022-11-19 08:22:54,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616533378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:54,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:54,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:54,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492764162] [2022-11-19 08:22:54,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:54,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:54,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:54,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:54,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:54,758 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:54,828 INFO L93 Difference]: Finished difference Result 223 states and 266 transitions. [2022-11-19 08:22:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:54,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:22:54,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:54,830 INFO L225 Difference]: With dead ends: 223 [2022-11-19 08:22:54,830 INFO L226 Difference]: Without dead ends: 223 [2022-11-19 08:22:54,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:54,831 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:54,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 211 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:54,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-19 08:22:54,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 161. [2022-11-19 08:22:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 127 states have (on average 1.5118110236220472) internal successors, (192), 160 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2022-11-19 08:22:54,837 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 24 [2022-11-19 08:22:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:54,837 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2022-11-19 08:22:54,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2022-11-19 08:22:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:22:54,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:54,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:54,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 08:22:54,839 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:54,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash -624846859, now seen corresponding path program 1 times [2022-11-19 08:22:54,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:54,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128078193] [2022-11-19 08:22:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:54,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:54,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:54,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128078193] [2022-11-19 08:22:54,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128078193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:54,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:54,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:22:54,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012347862] [2022-11-19 08:22:54,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:54,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:22:54,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:54,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:22:54,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:54,892 INFO L87 Difference]: Start difference. First operand 161 states and 192 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:54,963 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2022-11-19 08:22:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:22:54,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 08:22:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:54,965 INFO L225 Difference]: With dead ends: 159 [2022-11-19 08:22:54,965 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 08:22:54,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:22:54,966 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:54,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:22:54,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 08:22:54,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-19 08:22:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 126 states have (on average 1.5) internal successors, (189), 158 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2022-11-19 08:22:54,970 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 24 [2022-11-19 08:22:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:54,971 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2022-11-19 08:22:54,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2022-11-19 08:22:54,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:22:54,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:54,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:54,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 08:22:54,972 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:54,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:54,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2104588190, now seen corresponding path program 1 times [2022-11-19 08:22:54,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:54,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134767304] [2022-11-19 08:22:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:54,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:55,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:55,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134767304] [2022-11-19 08:22:55,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134767304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:22:55,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:22:55,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:22:55,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296656750] [2022-11-19 08:22:55,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:22:55,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:22:55,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:22:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:22:55,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:22:55,133 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:22:55,434 INFO L93 Difference]: Finished difference Result 255 states and 292 transitions. [2022-11-19 08:22:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:22:55,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-19 08:22:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:22:55,435 INFO L225 Difference]: With dead ends: 255 [2022-11-19 08:22:55,436 INFO L226 Difference]: Without dead ends: 255 [2022-11-19 08:22:55,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:22:55,436 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 271 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:22:55,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 327 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:22:55,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-19 08:22:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2022-11-19 08:22:55,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.467153284671533) internal successors, (201), 169 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2022-11-19 08:22:55,441 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 25 [2022-11-19 08:22:55,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:22:55,441 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2022-11-19 08:22:55,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:22:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2022-11-19 08:22:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 08:22:55,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:22:55,442 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:22:55,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 08:22:55,442 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:22:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:22:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash -502293249, now seen corresponding path program 1 times [2022-11-19 08:22:55,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:22:55,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136679949] [2022-11-19 08:22:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:22:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:55,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:22:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136679949] [2022-11-19 08:22:55,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136679949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:22:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915623868] [2022-11-19 08:22:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:22:55,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:22:55,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:22:55,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:22:55,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:22:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:22:55,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 08:22:55,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:22:55,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:22:55,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:22:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:22:55,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:55,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:22:56,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:56,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:22:56,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:56,071 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 [2022-11-19 08:22:56,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:22:56,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:22:56,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:22:56,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:22:56,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2022-11-19 08:22:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:56,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:22:56,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:22:56,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-19 08:22:57,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-19 08:22:57,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:22:57,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915623868] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:22:57,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1032044167] [2022-11-19 08:22:57,053 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:22:57,053 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:22:57,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:22:57,063 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:22:57,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:22:57,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:22:57,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:22:57,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:22:57,164 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 [2022-11-19 08:22:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:22:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:22:57,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:22:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:22:57,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:22:57,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:22:57,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:22:57,631 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:00,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1032044167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:00,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:00,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 23 [2022-11-19 08:23:00,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984430936] [2022-11-19 08:23:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:23:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:23:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:23:00,161 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:01,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:01,466 INFO L93 Difference]: Finished difference Result 227 states and 261 transitions. [2022-11-19 08:23:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:23:01,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 08:23:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:01,469 INFO L225 Difference]: With dead ends: 227 [2022-11-19 08:23:01,470 INFO L226 Difference]: Without dead ends: 227 [2022-11-19 08:23:01,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-11-19 08:23:01,471 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 132 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:01,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 400 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 08:23:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-19 08:23:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2022-11-19 08:23:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 159 states have (on average 1.421383647798742) internal successors, (226), 191 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 226 transitions. [2022-11-19 08:23:01,478 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 226 transitions. Word has length 27 [2022-11-19 08:23:01,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:01,479 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 226 transitions. [2022-11-19 08:23:01,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:01,479 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 226 transitions. [2022-11-19 08:23:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:23:01,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:01,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:01,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:01,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:01,682 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641916, now seen corresponding path program 1 times [2022-11-19 08:23:01,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:01,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275783470] [2022-11-19 08:23:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:01,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:01,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:01,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275783470] [2022-11-19 08:23:01,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275783470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:01,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:01,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:23:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178933885] [2022-11-19 08:23:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:23:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:23:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:23:01,994 INFO L87 Difference]: Start difference. First operand 192 states and 226 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:02,685 INFO L93 Difference]: Finished difference Result 326 states and 367 transitions. [2022-11-19 08:23:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:23:02,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 08:23:02,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:02,687 INFO L225 Difference]: With dead ends: 326 [2022-11-19 08:23:02,687 INFO L226 Difference]: Without dead ends: 326 [2022-11-19 08:23:02,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:23:02,688 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 393 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:02,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 601 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:23:02,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-11-19 08:23:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 201. [2022-11-19 08:23:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 170 states have (on average 1.388235294117647) internal successors, (236), 200 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2022-11-19 08:23:02,694 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 28 [2022-11-19 08:23:02,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:02,694 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2022-11-19 08:23:02,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2022-11-19 08:23:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:23:02,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:02,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:02,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 08:23:02,698 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641915, now seen corresponding path program 1 times [2022-11-19 08:23:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:02,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444685982] [2022-11-19 08:23:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:02,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:03,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:03,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444685982] [2022-11-19 08:23:03,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444685982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:03,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:03,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:23:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006989256] [2022-11-19 08:23:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:03,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:23:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:23:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:23:03,180 INFO L87 Difference]: Start difference. First operand 201 states and 236 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:04,033 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2022-11-19 08:23:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:23:04,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 08:23:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:04,035 INFO L225 Difference]: With dead ends: 379 [2022-11-19 08:23:04,036 INFO L226 Difference]: Without dead ends: 379 [2022-11-19 08:23:04,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:23:04,036 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 419 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:04,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 576 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:23:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-19 08:23:04,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 207. [2022-11-19 08:23:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.3806818181818181) internal successors, (243), 206 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2022-11-19 08:23:04,043 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 28 [2022-11-19 08:23:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:04,043 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2022-11-19 08:23:04,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2022-11-19 08:23:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:23:04,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:04,045 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:04,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 08:23:04,045 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:04,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:04,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1296793307, now seen corresponding path program 1 times [2022-11-19 08:23:04,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:04,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471834433] [2022-11-19 08:23:04,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:04,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:04,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:04,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471834433] [2022-11-19 08:23:04,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471834433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:04,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126328507] [2022-11-19 08:23:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:04,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:04,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:04,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:23:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:04,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:23:04,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:04,911 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:04,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2022-11-19 08:23:04,933 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:04,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 21 [2022-11-19 08:23:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:05,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:23:05,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126328507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:05,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:23:05,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-11-19 08:23:05,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29858762] [2022-11-19 08:23:05,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:05,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:23:05,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:23:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:23:05,025 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:05,671 INFO L93 Difference]: Finished difference Result 310 states and 341 transitions. [2022-11-19 08:23:05,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:23:05,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 08:23:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:05,673 INFO L225 Difference]: With dead ends: 310 [2022-11-19 08:23:05,673 INFO L226 Difference]: Without dead ends: 307 [2022-11-19 08:23:05,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:23:05,675 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 274 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:05,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 594 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:23:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-11-19 08:23:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 207. [2022-11-19 08:23:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.375) internal successors, (242), 206 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 242 transitions. [2022-11-19 08:23:05,686 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 242 transitions. Word has length 30 [2022-11-19 08:23:05,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:05,686 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 242 transitions. [2022-11-19 08:23:05,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 242 transitions. [2022-11-19 08:23:05,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:23:05,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:05,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:05,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:05,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-19 08:23:05,894 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:05,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:05,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1214837820, now seen corresponding path program 1 times [2022-11-19 08:23:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:05,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460224828] [2022-11-19 08:23:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:05,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:06,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:06,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460224828] [2022-11-19 08:23:06,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460224828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:06,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:06,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:23:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500291699] [2022-11-19 08:23:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:06,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:23:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:06,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:23:06,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:23:06,660 INFO L87 Difference]: Start difference. First operand 207 states and 242 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:07,722 INFO L93 Difference]: Finished difference Result 393 states and 425 transitions. [2022-11-19 08:23:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:23:07,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 08:23:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:07,724 INFO L225 Difference]: With dead ends: 393 [2022-11-19 08:23:07,724 INFO L226 Difference]: Without dead ends: 393 [2022-11-19 08:23:07,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:23:07,725 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 542 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:07,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 868 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:23:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-19 08:23:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 207. [2022-11-19 08:23:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 206 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 241 transitions. [2022-11-19 08:23:07,731 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 241 transitions. Word has length 30 [2022-11-19 08:23:07,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:07,731 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 241 transitions. [2022-11-19 08:23:07,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:07,731 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 241 transitions. [2022-11-19 08:23:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:23:07,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:07,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:07,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 08:23:07,732 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141919, now seen corresponding path program 1 times [2022-11-19 08:23:07,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:07,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691282879] [2022-11-19 08:23:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:07,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:07,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:07,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691282879] [2022-11-19 08:23:07,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691282879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:07,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:07,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264744464] [2022-11-19 08:23:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:07,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:07,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:07,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:07,863 INFO L87 Difference]: Start difference. First operand 207 states and 241 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:08,028 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2022-11-19 08:23:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 08:23:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:08,031 INFO L225 Difference]: With dead ends: 206 [2022-11-19 08:23:08,031 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:23:08,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:23:08,034 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 3 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:08,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 308 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:08,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:23:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-11-19 08:23:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 176 states have (on average 1.3636363636363635) internal successors, (240), 205 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2022-11-19 08:23:08,040 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 30 [2022-11-19 08:23:08,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:08,040 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2022-11-19 08:23:08,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2022-11-19 08:23:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:23:08,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:08,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:08,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 08:23:08,042 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:08,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141920, now seen corresponding path program 1 times [2022-11-19 08:23:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:08,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255408308] [2022-11-19 08:23:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:08,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:08,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255408308] [2022-11-19 08:23:08,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255408308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:08,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:08,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928877855] [2022-11-19 08:23:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:08,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:08,255 INFO L87 Difference]: Start difference. First operand 206 states and 240 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:08,443 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2022-11-19 08:23:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:08,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 08:23:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:08,445 INFO L225 Difference]: With dead ends: 205 [2022-11-19 08:23:08,445 INFO L226 Difference]: Without dead ends: 205 [2022-11-19 08:23:08,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:23:08,446 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:08,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 302 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-19 08:23:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-11-19 08:23:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 176 states have (on average 1.3579545454545454) internal successors, (239), 204 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 239 transitions. [2022-11-19 08:23:08,450 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 239 transitions. Word has length 30 [2022-11-19 08:23:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:08,450 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 239 transitions. [2022-11-19 08:23:08,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 239 transitions. [2022-11-19 08:23:08,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 08:23:08,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:08,451 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:08,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 08:23:08,452 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 90761328, now seen corresponding path program 1 times [2022-11-19 08:23:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425056815] [2022-11-19 08:23:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:23:08,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:08,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425056815] [2022-11-19 08:23:08,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425056815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:08,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:08,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:23:08,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180254893] [2022-11-19 08:23:08,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:08,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:23:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:08,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:23:08,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:23:08,684 INFO L87 Difference]: Start difference. First operand 205 states and 239 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:09,010 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2022-11-19 08:23:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:23:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-19 08:23:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:09,012 INFO L225 Difference]: With dead ends: 269 [2022-11-19 08:23:09,012 INFO L226 Difference]: Without dead ends: 269 [2022-11-19 08:23:09,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:23:09,013 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 279 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:09,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 444 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:23:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-19 08:23:09,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 193. [2022-11-19 08:23:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 164 states have (on average 1.3719512195121952) internal successors, (225), 192 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2022-11-19 08:23:09,017 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 31 [2022-11-19 08:23:09,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:09,017 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2022-11-19 08:23:09,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2022-11-19 08:23:09,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 08:23:09,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:09,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:09,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 08:23:09,018 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:09,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2044341774, now seen corresponding path program 1 times [2022-11-19 08:23:09,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:09,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880468468] [2022-11-19 08:23:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:09,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:09,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:09,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880468468] [2022-11-19 08:23:09,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880468468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:09,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:09,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:23:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662785634] [2022-11-19 08:23:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:09,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:09,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:09,108 INFO L87 Difference]: Start difference. First operand 193 states and 225 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:09,276 INFO L93 Difference]: Finished difference Result 203 states and 234 transitions. [2022-11-19 08:23:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:23:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-19 08:23:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:09,277 INFO L225 Difference]: With dead ends: 203 [2022-11-19 08:23:09,277 INFO L226 Difference]: Without dead ends: 203 [2022-11-19 08:23:09,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:23:09,278 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 45 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:09,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-19 08:23:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2022-11-19 08:23:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 192 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-11-19 08:23:09,282 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 31 [2022-11-19 08:23:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:09,282 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-11-19 08:23:09,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-11-19 08:23:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:23:09,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:09,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 08:23:09,283 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1566178367, now seen corresponding path program 1 times [2022-11-19 08:23:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:09,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938115752] [2022-11-19 08:23:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:09,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938115752] [2022-11-19 08:23:09,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938115752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:09,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:09,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:09,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709015811] [2022-11-19 08:23:09,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:09,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:09,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:09,444 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:09,581 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2022-11-19 08:23:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:09,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 08:23:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:09,583 INFO L225 Difference]: With dead ends: 206 [2022-11-19 08:23:09,583 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:23:09,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:09,583 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 12 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:09,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 272 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:23:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2022-11-19 08:23:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 194 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2022-11-19 08:23:09,588 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 32 [2022-11-19 08:23:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:09,588 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2022-11-19 08:23:09,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2022-11-19 08:23:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:23:09,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:09,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:09,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 08:23:09,589 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853815, now seen corresponding path program 1 times [2022-11-19 08:23:09,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:09,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241328014] [2022-11-19 08:23:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:09,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:10,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241328014] [2022-11-19 08:23:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241328014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:10,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:10,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:23:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829518846] [2022-11-19 08:23:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:10,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:23:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:23:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:23:10,044 INFO L87 Difference]: Start difference. First operand 195 states and 226 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:10,741 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2022-11-19 08:23:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:23:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 08:23:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:10,743 INFO L225 Difference]: With dead ends: 195 [2022-11-19 08:23:10,743 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 08:23:10,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:23:10,744 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 168 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:10,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 547 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:23:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 08:23:10,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2022-11-19 08:23:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 166 states have (on average 1.355421686746988) internal successors, (225), 193 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2022-11-19 08:23:10,748 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 32 [2022-11-19 08:23:10,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:10,748 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2022-11-19 08:23:10,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:10,748 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2022-11-19 08:23:10,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:23:10,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:10,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:10,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-19 08:23:10,749 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:10,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:10,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853814, now seen corresponding path program 1 times [2022-11-19 08:23:10,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:10,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285008760] [2022-11-19 08:23:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:10,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:11,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:11,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285008760] [2022-11-19 08:23:11,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285008760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:11,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:11,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:23:11,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897986840] [2022-11-19 08:23:11,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:11,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:23:11,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:11,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:23:11,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:23:11,302 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:11,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:11,865 INFO L93 Difference]: Finished difference Result 194 states and 225 transitions. [2022-11-19 08:23:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:23:11,867 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-19 08:23:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:11,868 INFO L225 Difference]: With dead ends: 194 [2022-11-19 08:23:11,868 INFO L226 Difference]: Without dead ends: 194 [2022-11-19 08:23:11,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:23:11,869 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 165 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:11,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 384 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:23:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-19 08:23:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2022-11-19 08:23:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 192 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2022-11-19 08:23:11,873 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 32 [2022-11-19 08:23:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:11,874 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2022-11-19 08:23:11,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2022-11-19 08:23:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 08:23:11,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:11,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:11,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-19 08:23:11,875 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1834861821, now seen corresponding path program 1 times [2022-11-19 08:23:11,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:11,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375991010] [2022-11-19 08:23:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:11,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:12,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:12,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375991010] [2022-11-19 08:23:12,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375991010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:12,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:12,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:23:12,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728226827] [2022-11-19 08:23:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:12,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:23:12,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:12,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:23:12,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:23:12,679 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:13,500 INFO L93 Difference]: Finished difference Result 296 states and 322 transitions. [2022-11-19 08:23:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:23:13,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-19 08:23:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:13,502 INFO L225 Difference]: With dead ends: 296 [2022-11-19 08:23:13,502 INFO L226 Difference]: Without dead ends: 296 [2022-11-19 08:23:13,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:23:13,503 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 449 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:13,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 715 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:23:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-11-19 08:23:13,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 193. [2022-11-19 08:23:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 192 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions. [2022-11-19 08:23:13,508 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 33 [2022-11-19 08:23:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:13,508 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions. [2022-11-19 08:23:13,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions. [2022-11-19 08:23:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 08:23:13,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:13,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:13,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-19 08:23:13,510 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:13,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:13,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1306585279, now seen corresponding path program 1 times [2022-11-19 08:23:13,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:13,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916976863] [2022-11-19 08:23:13,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:13,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:13,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:13,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916976863] [2022-11-19 08:23:13,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916976863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:13,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:13,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:23:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687515946] [2022-11-19 08:23:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:13,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:13,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:13,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:13,628 INFO L87 Difference]: Start difference. First operand 193 states and 223 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:13,758 INFO L93 Difference]: Finished difference Result 199 states and 230 transitions. [2022-11-19 08:23:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:23:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-19 08:23:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:13,759 INFO L225 Difference]: With dead ends: 199 [2022-11-19 08:23:13,760 INFO L226 Difference]: Without dead ends: 199 [2022-11-19 08:23:13,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:23:13,760 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 16 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:13,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 257 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:13,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-19 08:23:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 191. [2022-11-19 08:23:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 165 states have (on average 1.3393939393939394) internal successors, (221), 190 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 221 transitions. [2022-11-19 08:23:13,764 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 221 transitions. Word has length 33 [2022-11-19 08:23:13,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:13,764 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 221 transitions. [2022-11-19 08:23:13,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 221 transitions. [2022-11-19 08:23:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 08:23:13,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:13,765 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:13,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 08:23:13,765 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:13,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:13,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1884404572, now seen corresponding path program 1 times [2022-11-19 08:23:13,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:13,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126920325] [2022-11-19 08:23:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:13,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:13,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126920325] [2022-11-19 08:23:13,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126920325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:13,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537318035] [2022-11-19 08:23:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:13,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:13,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:13,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:13,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:23:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:14,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 08:23:14,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:14,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:14,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:14,131 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:14,140 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 21 treesize of output 20 [2022-11-19 08:23:14,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:14,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:14,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:14,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:14,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:14,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537318035] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:14,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [669997631] [2022-11-19 08:23:14,464 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-19 08:23:14,464 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:14,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:14,465 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:14,465 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:14,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:14,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:14,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:14,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:14,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:14,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:14,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:14,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:14,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:14,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:14,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:15,066 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:17,841 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15166#(and (<= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 08:23:17,841 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:17,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:17,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 7 [2022-11-19 08:23:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174296125] [2022-11-19 08:23:17,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:17,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:23:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:23:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:23:17,844 INFO L87 Difference]: Start difference. First operand 191 states and 221 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:18,307 INFO L93 Difference]: Finished difference Result 295 states and 321 transitions. [2022-11-19 08:23:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:23:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-19 08:23:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:18,309 INFO L225 Difference]: With dead ends: 295 [2022-11-19 08:23:18,309 INFO L226 Difference]: Without dead ends: 295 [2022-11-19 08:23:18,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2022-11-19 08:23:18,309 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 156 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:18,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 418 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:23:18,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-11-19 08:23:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 226. [2022-11-19 08:23:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 200 states have (on average 1.375) internal successors, (275), 225 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 275 transitions. [2022-11-19 08:23:18,314 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 275 transitions. Word has length 35 [2022-11-19 08:23:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:18,314 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 275 transitions. [2022-11-19 08:23:18,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 275 transitions. [2022-11-19 08:23:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 08:23:18,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:18,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:18,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:18,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-19 08:23:18,522 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1884408352, now seen corresponding path program 1 times [2022-11-19 08:23:18,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:18,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91031185] [2022-11-19 08:23:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:18,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:18,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:18,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91031185] [2022-11-19 08:23:18,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91031185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:18,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386938512] [2022-11-19 08:23:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:18,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:18,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:18,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:18,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:23:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:18,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:23:18,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:18,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:18,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:18,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386938512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:18,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [579906294] [2022-11-19 08:23:18,951 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-19 08:23:18,952 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:18,952 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:18,952 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:18,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:18,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:18,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:19,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:19,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:19,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:19,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:19,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:19,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:19,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:19,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:19,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:19,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:19,589 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:22,375 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15925#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~end~0#1.base| 0) (= |ULTIMATE.start_main_~end~0#1.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-19 08:23:22,375 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:22,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:22,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2022-11-19 08:23:22,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501071988] [2022-11-19 08:23:22,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:22,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:22,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:22,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:22,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:23:22,377 INFO L87 Difference]: Start difference. First operand 226 states and 275 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:22,497 INFO L93 Difference]: Finished difference Result 229 states and 277 transitions. [2022-11-19 08:23:22,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:23:22,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-19 08:23:22,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:22,499 INFO L225 Difference]: With dead ends: 229 [2022-11-19 08:23:22,499 INFO L226 Difference]: Without dead ends: 210 [2022-11-19 08:23:22,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:23:22,500 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:22,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 54 Unchecked, 0.1s Time] [2022-11-19 08:23:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-19 08:23:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-19 08:23:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 184 states have (on average 1.4021739130434783) internal successors, (258), 209 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:22,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2022-11-19 08:23:22,505 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 35 [2022-11-19 08:23:22,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:22,505 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2022-11-19 08:23:22,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2022-11-19 08:23:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:23:22,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:22,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:22,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:23:22,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:22,712 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1186708526, now seen corresponding path program 1 times [2022-11-19 08:23:22,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:22,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161224946] [2022-11-19 08:23:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:22,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161224946] [2022-11-19 08:23:22,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161224946] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:22,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996974777] [2022-11-19 08:23:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:22,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:22,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:22,778 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:22,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:23:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:22,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:23:22,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:22,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:23,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996974777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:23,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1429512366] [2022-11-19 08:23:23,029 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-11-19 08:23:23,029 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:23,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:23,030 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:23,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:23,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:23,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:23,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:23,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:23,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:23,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:23,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:23:23,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:23,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:23,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,307 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:23:23,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-11-19 08:23:23,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-11-19 08:23:23,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 08:23:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:23,405 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 08:23:23,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 243 treesize of output 164 [2022-11-19 08:23:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,439 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 08:23:23,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 134 [2022-11-19 08:23:23,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-11-19 08:23:24,073 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:28,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1429512366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:28,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:28,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 25 [2022-11-19 08:23:28,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282147132] [2022-11-19 08:23:28,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:28,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 08:23:28,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:28,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 08:23:28,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:23:28,981 INFO L87 Difference]: Start difference. First operand 210 states and 258 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:31,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:31,694 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2022-11-19 08:23:31,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:23:31,695 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-19 08:23:31,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:31,696 INFO L225 Difference]: With dead ends: 235 [2022-11-19 08:23:31,696 INFO L226 Difference]: Without dead ends: 235 [2022-11-19 08:23:31,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:23:31,697 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 193 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:31,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 535 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:23:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-19 08:23:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2022-11-19 08:23:31,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 190 states have (on average 1.3842105263157896) internal successors, (263), 215 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:31,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 263 transitions. [2022-11-19 08:23:31,705 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 263 transitions. Word has length 37 [2022-11-19 08:23:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:31,706 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 263 transitions. [2022-11-19 08:23:31,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 263 transitions. [2022-11-19 08:23:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 08:23:31,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:31,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:31,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 08:23:31,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-19 08:23:31,918 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2004688172, now seen corresponding path program 1 times [2022-11-19 08:23:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:31,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615200924] [2022-11-19 08:23:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:31,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:23:31,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:31,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615200924] [2022-11-19 08:23:31,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615200924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:31,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939127755] [2022-11-19 08:23:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:31,967 INFO L87 Difference]: Start difference. First operand 216 states and 263 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:32,054 INFO L93 Difference]: Finished difference Result 222 states and 266 transitions. [2022-11-19 08:23:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 08:23:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:32,055 INFO L225 Difference]: With dead ends: 222 [2022-11-19 08:23:32,055 INFO L226 Difference]: Without dead ends: 222 [2022-11-19 08:23:32,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:32,057 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 77 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:32,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 108 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-19 08:23:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2022-11-19 08:23:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 189 states have (on average 1.3650793650793651) internal successors, (258), 213 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2022-11-19 08:23:32,062 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 44 [2022-11-19 08:23:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:32,062 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2022-11-19 08:23:32,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2022-11-19 08:23:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 08:23:32,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:32,064 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:32,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-19 08:23:32,064 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:23:32,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash -810433761, now seen corresponding path program 1 times [2022-11-19 08:23:32,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:32,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688628166] [2022-11-19 08:23:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:32,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:33,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688628166] [2022-11-19 08:23:33,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688628166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830492239] [2022-11-19 08:23:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:33,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:33,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:33,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:23:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:33,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-19 08:23:33,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:33,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:23:33,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:33,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:33,604 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:33,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:23:33,701 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:23:33,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:23:33,729 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-19 08:23:33,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:33,916 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:23:33,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 50 [2022-11-19 08:23:33,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-19 08:23:34,101 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:23:34,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 70 [2022-11-19 08:23:34,117 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:23:34,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2022-11-19 08:23:34,408 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:23:34,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 70 [2022-11-19 08:23:34,421 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:23:34,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 89 [2022-11-19 08:23:34,918 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:34,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2022-11-19 08:23:34,929 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:34,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2022-11-19 08:23:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:35,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:35,532 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1381 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= (select |c_#valid| .cse0) 1) (= .cse0 0)))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1))))) is different from false [2022-11-19 08:23:35,557 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1377))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1378) .cse0 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse2 .cse0 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)))))) (forall ((v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse3 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1377))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= .cse3 0) (= (select |c_#valid| .cse3) 1)))))) is different from false [2022-11-19 08:23:35,580 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1377))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1378) .cse1 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse3 .cse1 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1)))))) (forall ((v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1377))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= .cse4 0) (= (select |c_#valid| .cse4) 1)))))) is different from false [2022-11-19 08:23:35,610 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1378) .cse0 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse2 .cse0 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)) 1)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse4 (select (select (let ((.cse5 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse3 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (or (= 0 .cse4) (= (select |c_#valid| .cse4) 1)))))) is different from false [2022-11-19 08:23:36,269 INFO L321 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-11-19 08:23:36,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 54 [2022-11-19 08:23:36,296 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 08:23:36,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 75 [2022-11-19 08:23:36,312 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:36,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 163 [2022-11-19 08:23:36,329 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-19 08:23:36,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 100 [2022-11-19 08:23:36,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-19 08:23:36,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:36,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2022-11-19 08:23:36,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2022-11-19 08:23:36,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:36,418 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 08:23:36,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 75 [2022-11-19 08:23:36,429 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:36,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 278 treesize of output 202 [2022-11-19 08:23:36,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 159 [2022-11-19 08:23:36,447 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:36,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 145 [2022-11-19 08:23:42,608 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 33 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:42,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830492239] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:42,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [551294221] [2022-11-19 08:23:42,644 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 08:23:42,644 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:42,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:42,645 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:42,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:42,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:42,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:42,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:42,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:42,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:42,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:42,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:42,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:42,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:23:42,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:23:42,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-19 08:23:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,933 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 35 [2022-11-19 08:23:42,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:42,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:42,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:42,996 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:23:42,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-11-19 08:23:43,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-11-19 08:23:43,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-19 08:23:43,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:43,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,098 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:23:43,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 96 [2022-11-19 08:23:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 55 [2022-11-19 08:23:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2022-11-19 08:23:43,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:23:43,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:23:43,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 08:23:43,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:23:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:23:43,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,525 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-19 08:23:43,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-11-19 08:23:43,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-11-19 08:23:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-11-19 08:23:43,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:43,759 INFO L321 Elim1Store]: treesize reduction 320, result has 16.7 percent of original size [2022-11-19 08:23:43,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 431 treesize of output 273 [2022-11-19 08:23:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,808 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-19 08:23:43,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 211 treesize of output 165 [2022-11-19 08:23:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:43,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:23:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,218 INFO L321 Elim1Store]: treesize reduction 170, result has 11.0 percent of original size [2022-11-19 08:23:44,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 526 treesize of output 473 [2022-11-19 08:23:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 503 [2022-11-19 08:23:44,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:44,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:44,339 INFO L321 Elim1Store]: treesize reduction 206, result has 12.3 percent of original size [2022-11-19 08:23:44,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 518 treesize of output 518 [2022-11-19 08:23:45,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,160 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-19 08:23:45,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 1025 treesize of output 1003 [2022-11-19 08:23:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,647 INFO L321 Elim1Store]: treesize reduction 388, result has 14.5 percent of original size [2022-11-19 08:23:45,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 41 case distinctions, treesize of input 1140 treesize of output 1060 [2022-11-19 08:23:45,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:45,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:45,898 INFO L321 Elim1Store]: treesize reduction 308, result has 17.6 percent of original size [2022-11-19 08:23:45,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 1124 treesize of output 951 [2022-11-19 08:23:45,979 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:23:45,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1119 treesize of output 1086 [2022-11-19 08:23:46,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,560 INFO L321 Elim1Store]: treesize reduction 234, result has 11.7 percent of original size [2022-11-19 08:23:46,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 38 case distinctions, treesize of input 709 treesize of output 590 [2022-11-19 08:23:46,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 602 treesize of output 561 [2022-11-19 08:23:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:46,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:46,898 INFO L321 Elim1Store]: treesize reduction 522, result has 13.6 percent of original size [2022-11-19 08:23:46,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 636 treesize of output 622 [2022-11-19 08:23:47,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:47,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:47,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:47,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:47,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:48,166 INFO L321 Elim1Store]: treesize reduction 1000, result has 10.4 percent of original size [2022-11-19 08:23:48,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 1225 treesize of output 756 [2022-11-19 08:23:48,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:48,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:48,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:48,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:48,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:48,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:49,073 INFO L321 Elim1Store]: treesize reduction 1036, result has 11.0 percent of original size [2022-11-19 08:23:49,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 18 new quantified variables, introduced 91 case distinctions, treesize of input 1281 treesize of output 1023 [2022-11-19 08:23:49,180 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:23:49,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1079 treesize of output 1062 [2022-11-19 08:23:52,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:52,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:23:52,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:52,614 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:23:52,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:23:52,641 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:52,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:23:52,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:23:52,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:52,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:52,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:52,706 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:23:52,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2022-11-19 08:23:52,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-19 08:23:52,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:23:52,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:23:52,992 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:23:52,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-11-19 08:23:53,215 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:23:53,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 181 treesize of output 223 [2022-11-19 08:23:53,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:23:53,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:53,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:53,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:23:53,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:23:53,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:54,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:23:54,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:54,039 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:23:54,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 96 [2022-11-19 08:23:54,066 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 08:23:54,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-11-19 08:23:54,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:23:54,123 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:57,675 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17818#(and (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 08:23:57,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:57,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:57,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 37 [2022-11-19 08:23:57,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690694694] [2022-11-19 08:23:57,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:57,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-19 08:23:57,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:57,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-19 08:23:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=3044, Unknown=11, NotChecked=468, Total=3906 [2022-11-19 08:23:57,679 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:59,893 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8)) (.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (= |c_ULTIMATE.start_main_#t~malloc10#1.offset| 0) (= (select .cse0 .cse1) 0) (= (select .cse2 .cse1) 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0) (= (select |c_#valid| |c_ULTIMATE.start_main_#t~malloc10#1.base|) 1) (not (<= (+ |c_ULTIMATE.start_main_~list~0#1.offset| 1) |c_ULTIMATE.start_main_~end~0#1.offset|)) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1378 (Array Int Int)) (v_ArrVal_1377 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse2 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (or (forall ((v_ArrVal_1382 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse0 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1378) .cse4 v_ArrVal_1382) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_1381 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse5 .cse4 v_ArrVal_1381) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) 1)))))) (not (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) (= |c_ULTIMATE.start_main_~end~0#1.offset| 0) (= (select .cse2 .cse3) 0) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_1377 (Array Int Int)) (v_ArrVal_1381 (Array Int Int))) (let ((.cse6 (select (select (let ((.cse7 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse2 |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)) |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1377))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1381)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= 0 .cse6) (= (select |c_#valid| .cse6) 1)))) (= (select .cse0 |c_ULTIMATE.start_main_~end~0#1.offset|) |c_ULTIMATE.start_main_#t~malloc10#1.offset|) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0) (= |c_ULTIMATE.start_main_~list~0#1.base| |c_ULTIMATE.start_main_~end~0#1.base|))) is different from false [2022-11-19 08:24:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:03,393 INFO L93 Difference]: Finished difference Result 245 states and 293 transitions. [2022-11-19 08:24:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 08:24:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-19 08:24:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:03,395 INFO L225 Difference]: With dead ends: 245 [2022-11-19 08:24:03,395 INFO L226 Difference]: Without dead ends: 245 [2022-11-19 08:24:03,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 85 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1609 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=542, Invalid=4296, Unknown=12, NotChecked=700, Total=5550 [2022-11-19 08:24:03,397 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 230 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 755 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:03,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 874 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 755 Unchecked, 0.3s Time] [2022-11-19 08:24:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-19 08:24:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 239. [2022-11-19 08:24:03,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 214 states have (on average 1.3317757009345794) internal successors, (285), 238 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 285 transitions. [2022-11-19 08:24:03,403 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 285 transitions. Word has length 44 [2022-11-19 08:24:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 285 transitions. [2022-11-19 08:24:03,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.473684210526316) internal successors, (132), 37 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 285 transitions. [2022-11-19 08:24:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 08:24:03,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:03,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:03,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:03,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-19 08:24:03,612 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:24:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795631, now seen corresponding path program 1 times [2022-11-19 08:24:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:03,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371794626] [2022-11-19 08:24:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:24:03,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:03,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371794626] [2022-11-19 08:24:03,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371794626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:03,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:03,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:24:03,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077938021] [2022-11-19 08:24:03,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:03,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:24:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:24:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:24:03,977 INFO L87 Difference]: Start difference. First operand 239 states and 285 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:04,874 INFO L93 Difference]: Finished difference Result 250 states and 291 transitions. [2022-11-19 08:24:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:24:04,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-19 08:24:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:04,877 INFO L225 Difference]: With dead ends: 250 [2022-11-19 08:24:04,877 INFO L226 Difference]: Without dead ends: 250 [2022-11-19 08:24:04,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:24:04,878 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 300 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:04,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 295 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:24:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-19 08:24:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 239. [2022-11-19 08:24:04,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 214 states have (on average 1.3271028037383177) internal successors, (284), 238 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 284 transitions. [2022-11-19 08:24:04,884 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 284 transitions. Word has length 45 [2022-11-19 08:24:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:04,884 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 284 transitions. [2022-11-19 08:24:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 284 transitions. [2022-11-19 08:24:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 08:24:04,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:04,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:04,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-19 08:24:04,886 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:24:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795632, now seen corresponding path program 1 times [2022-11-19 08:24:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:04,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159569534] [2022-11-19 08:24:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:24:05,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:05,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159569534] [2022-11-19 08:24:05,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159569534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:05,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:05,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:24:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720165902] [2022-11-19 08:24:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:05,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:24:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:24:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:24:05,456 INFO L87 Difference]: Start difference. First operand 239 states and 284 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:06,521 INFO L93 Difference]: Finished difference Result 251 states and 292 transitions. [2022-11-19 08:24:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:24:06,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-19 08:24:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:06,523 INFO L225 Difference]: With dead ends: 251 [2022-11-19 08:24:06,523 INFO L226 Difference]: Without dead ends: 251 [2022-11-19 08:24:06,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:24:06,524 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 239 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:06,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 312 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:24:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-19 08:24:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 239. [2022-11-19 08:24:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 214 states have (on average 1.3177570093457944) internal successors, (282), 238 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 282 transitions. [2022-11-19 08:24:06,530 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 282 transitions. Word has length 45 [2022-11-19 08:24:06,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:06,530 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 282 transitions. [2022-11-19 08:24:06,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:06,531 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 282 transitions. [2022-11-19 08:24:06,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 08:24:06,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:06,532 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:06,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-19 08:24:06,532 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:24:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711168, now seen corresponding path program 1 times [2022-11-19 08:24:06,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:06,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617273867] [2022-11-19 08:24:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:07,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:07,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617273867] [2022-11-19 08:24:07,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617273867] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:07,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964427582] [2022-11-19 08:24:07,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:07,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:07,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:07,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:07,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:24:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:07,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 08:24:07,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:07,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:24:07,823 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:24:07,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:24:07,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:08,051 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:08,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-19 08:24:08,144 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:08,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-19 08:24:08,295 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:08,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-19 08:24:08,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:08,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:24:08,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:08,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:09,665 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:09,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 31 [2022-11-19 08:24:09,694 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:09,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 131 [2022-11-19 08:24:09,720 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:09,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 114 [2022-11-19 08:24:09,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 102 [2022-11-19 08:24:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:17,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964427582] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:24:17,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1129570223] [2022-11-19 08:24:17,328 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 08:24:17,328 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:17,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:17,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:17,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:17,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:24:17,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:17,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:17,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:17,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:24:17,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:24:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:24:17,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:24:17,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:24:17,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-19 08:24:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-19 08:24:17,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:17,727 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:24:17,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-11-19 08:24:17,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-11-19 08:24:17,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-11-19 08:24:17,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:17,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:17,833 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:24:17,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 144 treesize of output 119 [2022-11-19 08:24:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,877 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:24:17,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 76 [2022-11-19 08:24:17,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:24:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2022-11-19 08:24:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:17,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2022-11-19 08:24:18,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-19 08:24:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:24:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:24:18,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,268 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-19 08:24:18,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-11-19 08:24:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-11-19 08:24:18,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-11-19 08:24:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,616 INFO L321 Elim1Store]: treesize reduction 280, result has 16.2 percent of original size [2022-11-19 08:24:18,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 340 treesize of output 222 [2022-11-19 08:24:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,680 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:24:18,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 122 [2022-11-19 08:24:18,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:18,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:18,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,034 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-11-19 08:24:19,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 533 treesize of output 480 [2022-11-19 08:24:19,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:19,138 INFO L321 Elim1Store]: treesize reduction 114, result has 20.3 percent of original size [2022-11-19 08:24:19,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 527 treesize of output 531 [2022-11-19 08:24:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 527 treesize of output 506 [2022-11-19 08:24:19,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:19,957 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-19 08:24:19,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 1047 treesize of output 1021 [2022-11-19 08:24:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,363 INFO L321 Elim1Store]: treesize reduction 92, result has 22.7 percent of original size [2022-11-19 08:24:20,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 1162 treesize of output 983 [2022-11-19 08:24:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:20,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,527 INFO L321 Elim1Store]: treesize reduction 140, result has 11.9 percent of original size [2022-11-19 08:24:20,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 1162 treesize of output 1084 [2022-11-19 08:24:20,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:20,624 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 08:24:20,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1141 treesize of output 1108 [2022-11-19 08:24:21,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,469 INFO L321 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2022-11-19 08:24:21,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 1880 treesize of output 1463 [2022-11-19 08:24:21,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1773 treesize of output 1700 [2022-11-19 08:24:21,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:21,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:21,907 INFO L321 Elim1Store]: treesize reduction 444, result has 15.9 percent of original size [2022-11-19 08:24:21,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 1807 treesize of output 1667 [2022-11-19 08:24:22,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:22,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:22,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:22,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:22,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:22,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:23,195 INFO L321 Elim1Store]: treesize reduction 548, result has 16.2 percent of original size [2022-11-19 08:24:23,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 3 disjoint index pairs (out of 55 index pairs), introduced 16 new quantified variables, introduced 66 case distinctions, treesize of input 1141 treesize of output 709 [2022-11-19 08:24:23,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:23,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:23,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:23,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:23,897 INFO L321 Elim1Store]: treesize reduction 840, result has 16.5 percent of original size [2022-11-19 08:24:23,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 57 case distinctions, treesize of input 1080 treesize of output 1011 [2022-11-19 08:24:24,016 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:24:24,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 955 treesize of output 938 [2022-11-19 08:24:27,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:24:27,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:24:27,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:24:27,480 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:24:27,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:24:27,524 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:24:27,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:24:27,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:24:27,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:27,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:27,608 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:24:27,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2022-11-19 08:24:27,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-19 08:24:27,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:24:28,013 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:24:28,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-11-19 08:24:28,392 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:24:28,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 181 treesize of output 223 [2022-11-19 08:24:29,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:24:29,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:24:29,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:24:29,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:24:29,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:24:29,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:24:29,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:29,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:29,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:24:29,983 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:24:29,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 96 [2022-11-19 08:24:30,045 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 08:24:30,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-11-19 08:24:30,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:24:30,103 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:34,926 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19675#(and (= |ULTIMATE.start_main_~len~0#1| 0) (not (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 08:24:34,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:24:34,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:24:34,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 27 [2022-11-19 08:24:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379292220] [2022-11-19 08:24:34,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:24:34,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:24:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:24:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=2711, Unknown=16, NotChecked=0, Total=3080 [2022-11-19 08:24:34,929 INFO L87 Difference]: Start difference. First operand 239 states and 282 transitions. Second operand has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:40,374 INFO L93 Difference]: Finished difference Result 780 states and 874 transitions. [2022-11-19 08:24:40,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-19 08:24:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-19 08:24:40,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:40,378 INFO L225 Difference]: With dead ends: 780 [2022-11-19 08:24:40,378 INFO L226 Difference]: Without dead ends: 780 [2022-11-19 08:24:40,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 93 SyntacticMatches, 6 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3132 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=951, Invalid=6514, Unknown=17, NotChecked=0, Total=7482 [2022-11-19 08:24:40,381 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 2194 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1706 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:40,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 1714 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1146 Invalid, 0 Unknown, 1706 Unchecked, 2.2s Time] [2022-11-19 08:24:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-19 08:24:40,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 287. [2022-11-19 08:24:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 262 states have (on average 1.3129770992366412) internal successors, (344), 286 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 344 transitions. [2022-11-19 08:24:40,392 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 344 transitions. Word has length 46 [2022-11-19 08:24:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:40,392 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 344 transitions. [2022-11-19 08:24:40,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 344 transitions. [2022-11-19 08:24:40,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 08:24:40,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:40,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:40,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:40,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-19 08:24:40,607 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:24:40,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711167, now seen corresponding path program 1 times [2022-11-19 08:24:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:40,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866527063] [2022-11-19 08:24:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:41,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:41,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866527063] [2022-11-19 08:24:41,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866527063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:41,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063836947] [2022-11-19 08:24:41,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:41,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:41,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:41,385 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:41,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 08:24:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:41,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-19 08:24:41,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:41,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:24:41,799 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 08:24:41,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 08:24:41,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:24:41,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:41,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:42,079 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:42,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-19 08:24:42,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-19 08:24:42,204 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:42,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2022-11-19 08:24:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:42,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 08:24:42,381 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:24:42,382 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 38 treesize of output 37 [2022-11-19 08:24:42,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-19 08:24:42,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:42,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:24:42,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:42,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:24:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:42,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:44,303 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (and (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1648) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1649) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|) 8)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)))) (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1653 (Array Int Int)) (v_ArrVal_1652 (Array Int Int)) (|v_ULTIMATE.start_main_~end~0#1.offset_144| Int) (v_ArrVal_1649 (Array Int Int))) (or (not (<= 0 |v_ULTIMATE.start_main_~end~0#1.offset_144|)) (not (<= |v_ULTIMATE.start_main_~end~0#1.offset_144| |c_ULTIMATE.start_main_~list~0#1.offset|)) (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1649))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1648) .cse1 v_ArrVal_1653) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|) 12) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1652) |c_ULTIMATE.start_main_~list~0#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_144|))))))))) is different from false [2022-11-19 08:24:44,328 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:44,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 74 [2022-11-19 08:24:44,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:44,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 50 [2022-11-19 08:24:44,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:44,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 632 treesize of output 567 [2022-11-19 08:24:44,408 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:44,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1168 treesize of output 1111 [2022-11-19 08:24:44,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1096 treesize of output 1048 [2022-11-19 08:24:44,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1048 treesize of output 1000 [2022-11-19 08:24:44,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1000 treesize of output 984 [2022-11-19 08:24:44,505 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:44,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 984 treesize of output 892 [2022-11-19 08:24:47,896 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:47,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39 [2022-11-19 08:24:47,911 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:24:47,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2022-11-19 08:24:47,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:47,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2022-11-19 08:24:47,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:47,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:47,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:47,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-11-19 08:24:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:48,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063836947] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:24:48,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1319600103] [2022-11-19 08:24:48,660 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 08:24:48,660 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:48,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:48,661 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:48,662 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:48,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:24:48,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:48,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:48,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:24:48,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:48,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:24:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,788 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 34 treesize of output 21 [2022-11-19 08:24:48,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:24:48,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:24:48,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:24:48,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:24:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-19 08:24:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:48,982 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 [2022-11-19 08:24:48,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-11-19 08:24:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,056 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:24:49,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 137 [2022-11-19 08:24:49,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 106 [2022-11-19 08:24:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-11-19 08:24:49,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,163 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:24:49,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 144 treesize of output 119 [2022-11-19 08:24:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,220 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 08:24:49,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 88 [2022-11-19 08:24:49,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,249 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 [2022-11-19 08:24:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:24:49,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,390 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-19 08:24:49,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 126 treesize of output 108 [2022-11-19 08:24:49,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2022-11-19 08:24:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 52 [2022-11-19 08:24:49,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,593 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-19 08:24:49,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 172 treesize of output 142 [2022-11-19 08:24:49,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 67 [2022-11-19 08:24:49,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:49,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,755 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-11-19 08:24:49,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-11-19 08:24:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 138 [2022-11-19 08:24:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-19 08:24:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:24:49,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:49,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:49,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,036 INFO L321 Elim1Store]: treesize reduction 220, result has 19.7 percent of original size [2022-11-19 08:24:50,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 297 treesize of output 196 [2022-11-19 08:24:50,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 97 [2022-11-19 08:24:50,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,438 INFO L321 Elim1Store]: treesize reduction 114, result has 13.0 percent of original size [2022-11-19 08:24:50,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 566 treesize of output 487 [2022-11-19 08:24:50,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,467 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 572 treesize of output 551 [2022-11-19 08:24:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:50,565 INFO L321 Elim1Store]: treesize reduction 162, result has 11.5 percent of original size [2022-11-19 08:24:50,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 566 treesize of output 569 [2022-11-19 08:24:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,099 INFO L321 Elim1Store]: treesize reduction 246, result has 12.1 percent of original size [2022-11-19 08:24:51,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 566 treesize of output 571 [2022-11-19 08:24:51,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,334 INFO L321 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2022-11-19 08:24:51,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 44 case distinctions, treesize of input 641 treesize of output 542 [2022-11-19 08:24:51,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,472 INFO L321 Elim1Store]: treesize reduction 180, result has 9.5 percent of original size [2022-11-19 08:24:51,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 649 treesize of output 648 [2022-11-19 08:24:51,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,538 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 08:24:51,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 636 treesize of output 619 [2022-11-19 08:24:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,841 INFO L321 Elim1Store]: treesize reduction 162, result has 16.1 percent of original size [2022-11-19 08:24:51,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 46 case distinctions, treesize of input 755 treesize of output 610 [2022-11-19 08:24:51,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:51,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:51,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,285 INFO L321 Elim1Store]: treesize reduction 530, result has 13.8 percent of original size [2022-11-19 08:24:52,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 721 treesize of output 702 [2022-11-19 08:24:52,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 648 treesize of output 607 [2022-11-19 08:24:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:54,011 INFO L321 Elim1Store]: treesize reduction 820, result has 16.9 percent of original size [2022-11-19 08:24:54,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 3 disjoint index pairs (out of 91 index pairs), introduced 19 new quantified variables, introduced 105 case distinctions, treesize of input 912 treesize of output 763 [2022-11-19 08:24:54,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:54,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:54,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:54,944 INFO L321 Elim1Store]: treesize reduction 956, result has 15.2 percent of original size [2022-11-19 08:24:54,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 4 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 87 case distinctions, treesize of input 921 treesize of output 926 [2022-11-19 08:24:55,038 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:24:55,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 830 treesize of output 813 [2022-11-19 08:25:41,364 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 13 treesize of output 9 [2022-11-19 08:25:41,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:25:41,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:25:41,442 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:25:41,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:25:41,487 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:25:41,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:25:41,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:25:41,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:25:41,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:25:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:41,575 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:25:41,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2022-11-19 08:25:41,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-19 08:25:41,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:25:41,958 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:25:41,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-11-19 08:25:42,332 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:25:42,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 181 treesize of output 223 [2022-11-19 08:25:42,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:25:42,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:25:42,633 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:25:42,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:25:42,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:25:42,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:25:42,879 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 15 treesize of output 1 [2022-11-19 08:25:42,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:25:42,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:25:42,939 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:25:42,940 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 96 [2022-11-19 08:25:42,989 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 08:25:42,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-11-19 08:25:42,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:25:43,037 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:25:48,821 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21138#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~len~0#1| 0) (or (not (<= 0 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (not (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)))) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-19 08:25:48,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:25:48,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:25:48,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 29 [2022-11-19 08:25:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980073504] [2022-11-19 08:25:48,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:25:48,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-19 08:25:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:25:48,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-19 08:25:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2818, Unknown=12, NotChecked=108, Total=3192 [2022-11-19 08:25:48,823 INFO L87 Difference]: Start difference. First operand 287 states and 344 transitions. Second operand has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:25:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:55,131 INFO L93 Difference]: Finished difference Result 427 states and 488 transitions. [2022-11-19 08:25:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-19 08:25:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-19 08:25:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:55,134 INFO L225 Difference]: With dead ends: 427 [2022-11-19 08:25:55,134 INFO L226 Difference]: Without dead ends: 427 [2022-11-19 08:25:55,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 92 SyntacticMatches, 12 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=592, Invalid=5406, Unknown=12, NotChecked=152, Total=6162 [2022-11-19 08:25:55,138 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 853 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 834 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:55,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 1164 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1110 Invalid, 0 Unknown, 834 Unchecked, 1.7s Time] [2022-11-19 08:25:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-11-19 08:25:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 318. [2022-11-19 08:25:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 293 states have (on average 1.3208191126279865) internal successors, (387), 317 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:25:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 387 transitions. [2022-11-19 08:25:55,147 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 387 transitions. Word has length 46 [2022-11-19 08:25:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:55,148 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 387 transitions. [2022-11-19 08:25:55,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.758620689655173) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:25:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 387 transitions. [2022-11-19 08:25:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:25:55,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:55,149 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:55,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:55,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-11-19 08:25:55,356 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:25:55,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash -157749319, now seen corresponding path program 1 times [2022-11-19 08:25:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:55,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498303976] [2022-11-19 08:25:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:55,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:56,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:56,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498303976] [2022-11-19 08:25:56,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498303976] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:25:56,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403918359] [2022-11-19 08:25:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:56,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:56,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:56,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:56,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 08:25:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:56,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-19 08:25:56,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:56,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:25:57,024 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:25:57,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:25:57,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:25:57,229 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:25:57,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-19 08:25:57,349 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:25:57,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-19 08:25:57,593 INFO L321 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2022-11-19 08:25:57,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 45 [2022-11-19 08:25:57,757 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:25:57,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-19 08:25:58,178 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:25:58,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 79 [2022-11-19 08:25:58,563 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:25:58,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 100 [2022-11-19 08:25:59,108 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:25:59,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 100 [2022-11-19 08:25:59,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-11-19 08:25:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:59,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:25:59,960 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1785) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-11-19 08:26:00,008 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-11-19 08:26:00,021 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-11-19 08:26:00,034 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2022-11-19 08:26:00,248 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-11-19 08:26:00,277 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|)) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-11-19 08:26:00,340 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1779 (Array Int Int)) (|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~malloc10#1.base_33| Int) (v_ArrVal_1785 (Array Int Int)) (v_ArrVal_1783 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|) 0)) (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_33| 1) (select (select (let ((.cse0 (store (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1779))) (store .cse1 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_33|))) |v_ULTIMATE.start_main_#t~malloc10#1.base_33| v_ArrVal_1783))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1785)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1))) is different from false [2022-11-19 08:26:09,822 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:26:09,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 114 [2022-11-19 08:26:09,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:09,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 437 [2022-11-19 08:26:09,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 453 [2022-11-19 08:26:09,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 425 treesize of output 397 [2022-11-19 08:26:09,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 425 treesize of output 397 [2022-11-19 08:26:09,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 353 treesize of output 333 [2022-11-19 08:26:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-19 08:26:18,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403918359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:26:18,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1400066001] [2022-11-19 08:26:18,137 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-19 08:26:18,137 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:26:18,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:26:18,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:26:18,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:26:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:26:18,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:26:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:26:18,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:26:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:26:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:26:18,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:26:18,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:26:18,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:26:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:26:18,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:26:18,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,659 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:26:18,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-11-19 08:26:18,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-11-19 08:26:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 08:26:18,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:18,849 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 08:26:18,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 243 treesize of output 164 [2022-11-19 08:26:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,947 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 08:26:18,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 134 [2022-11-19 08:26:18,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:18,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 21 [2022-11-19 08:26:19,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2022-11-19 08:26:19,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,267 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-19 08:26:19,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 211 treesize of output 152 [2022-11-19 08:26:19,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,323 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:26:19,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 100 [2022-11-19 08:26:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:26:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,491 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-19 08:26:19,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 303 treesize of output 208 [2022-11-19 08:26:19,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 138 [2022-11-19 08:26:19,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-19 08:26:19,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:19,811 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:26:19,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 239 treesize of output 167 [2022-11-19 08:26:19,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 91 [2022-11-19 08:26:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:19,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:26:20,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,185 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 08:26:20,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 248 treesize of output 179 [2022-11-19 08:26:20,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-19 08:26:20,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:26:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 66 [2022-11-19 08:26:20,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,709 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-11-19 08:26:20,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 321 treesize of output 222 [2022-11-19 08:26:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 99 [2022-11-19 08:26:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:26:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:20,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:20,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:21,092 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-11-19 08:26:21,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 369 treesize of output 271 [2022-11-19 08:26:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 170 [2022-11-19 08:26:21,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-19 08:26:21,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:26:21,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:21,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:21,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:21,976 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-11-19 08:26:21,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 437 treesize of output 273 [2022-11-19 08:26:22,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 129 [2022-11-19 08:26:22,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,682 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-11-19 08:26:22,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 828 treesize of output 612 [2022-11-19 08:26:22,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:22,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:22,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:23,109 INFO L321 Elim1Store]: treesize reduction 226, result has 15.7 percent of original size [2022-11-19 08:26:23,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 40 case distinctions, treesize of input 820 treesize of output 806 [2022-11-19 08:26:23,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:23,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:23,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 797 [2022-11-19 08:26:23,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:23,991 INFO L321 Elim1Store]: treesize reduction 262, result has 12.1 percent of original size [2022-11-19 08:26:23,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 844 treesize of output 835 [2022-11-19 08:26:24,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,590 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-11-19 08:26:24,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 964 treesize of output 698 [2022-11-19 08:26:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:24,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:24,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,151 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-11-19 08:26:25,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 48 case distinctions, treesize of input 964 treesize of output 938 [2022-11-19 08:26:25,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,301 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 08:26:25,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 951 treesize of output 934 [2022-11-19 08:26:25,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:25,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:25,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:26,000 INFO L321 Elim1Store]: treesize reduction 170, result has 12.4 percent of original size [2022-11-19 08:26:26,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 55 case distinctions, treesize of input 1070 treesize of output 750 [2022-11-19 08:26:26,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 963 treesize of output 922 [2022-11-19 08:26:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:26,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:26,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:26,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:26,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:27,204 INFO L321 Elim1Store]: treesize reduction 630, result has 14.6 percent of original size [2022-11-19 08:26:27,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 997 treesize of output 969 [2022-11-19 08:26:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:27,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:27,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:27,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:27,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:28,940 INFO L321 Elim1Store]: treesize reduction 692, result has 14.8 percent of original size [2022-11-19 08:26:28,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 1439 treesize of output 852 [2022-11-19 08:26:29,134 INFO L217 Elim1Store]: Index analysis took 148 ms [2022-11-19 08:26:29,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:29,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:29,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:26:31,018 INFO L321 Elim1Store]: treesize reduction 1120, result has 14.6 percent of original size [2022-11-19 08:26:31,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 81 case distinctions, treesize of input 1378 treesize of output 1295 [2022-11-19 08:26:31,316 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:26:31,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1253 treesize of output 1236 [2022-11-19 08:26:33,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:26:33,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:26:33,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:26:33,389 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:26:33,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:26:33,526 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:26:33,527 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 21 [2022-11-19 08:26:33,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:26:33,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:26:33,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:26:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:26:33,698 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:26:33,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2022-11-19 08:26:33,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-19 08:26:33,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2022-11-19 08:26:33,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:26:35,397 INFO L321 Elim1Store]: treesize reduction 272, result has 41.8 percent of original size [2022-11-19 08:26:35,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 311 treesize of output 403 [2022-11-19 08:26:35,529 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-19 08:26:37,084 INFO L321 Elim1Store]: treesize reduction 220, result has 40.7 percent of original size [2022-11-19 08:26:37,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 333 treesize of output 401 [2022-11-19 08:27:18,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:27:18,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:27:18,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:27:18,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:27:18,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:27:18,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:27:18,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:27:18,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:27:19,085 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:27:19,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 96 [2022-11-19 08:27:19,249 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 08:27:19,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-11-19 08:27:19,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:27:19,307 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:27:40,229 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22282#(and (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (not (= (select |#valid| |ULTIMATE.start_main_~inner~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 08:27:40,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:27:40,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:27:40,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 16] total 39 [2022-11-19 08:27:40,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456163412] [2022-11-19 08:27:40,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:27:40,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-19 08:27:40,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:27:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-19 08:27:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=3452, Unknown=42, NotChecked=896, Total=4830 [2022-11-19 08:27:40,233 INFO L87 Difference]: Start difference. First operand 318 states and 387 transitions. Second operand has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:27:47,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:27:47,481 INFO L93 Difference]: Finished difference Result 368 states and 438 transitions. [2022-11-19 08:27:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 08:27:47,481 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-19 08:27:47,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:27:47,483 INFO L225 Difference]: With dead ends: 368 [2022-11-19 08:27:47,483 INFO L226 Difference]: Without dead ends: 368 [2022-11-19 08:27:47,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 87 SyntacticMatches, 10 SemanticMatches, 75 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=540, Invalid=4274, Unknown=44, NotChecked=994, Total=5852 [2022-11-19 08:27:47,484 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 293 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2058 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:27:47,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1806 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 834 Invalid, 0 Unknown, 2058 Unchecked, 4.4s Time] [2022-11-19 08:27:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-19 08:27:47,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 321. [2022-11-19 08:27:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 296 states have (on average 1.320945945945946) internal successors, (391), 320 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:27:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 391 transitions. [2022-11-19 08:27:47,493 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 391 transitions. Word has length 47 [2022-11-19 08:27:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:27:47,493 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 391 transitions. [2022-11-19 08:27:47,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.025) internal successors, (121), 40 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:27:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 391 transitions. [2022-11-19 08:27:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:27:47,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:27:47,495 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:27:47,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:27:47,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:27:47,702 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:27:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:27:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash -157749318, now seen corresponding path program 1 times [2022-11-19 08:27:47,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:27:47,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268064195] [2022-11-19 08:27:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:27:47,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:27:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:27:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:27:52,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:27:52,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268064195] [2022-11-19 08:27:52,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268064195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:27:52,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845006981] [2022-11-19 08:27:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:27:52,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:27:52,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:27:52,311 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:27:52,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 08:27:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:27:52,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-19 08:27:52,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:27:52,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:27:52,961 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:27:52,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:27:53,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:27:53,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:27:53,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:27:53,909 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:27:53,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 54 [2022-11-19 08:27:53,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 08:27:54,381 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:27:54,382 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 57 treesize of output 54 [2022-11-19 08:27:54,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 08:27:55,321 INFO L321 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-11-19 08:27:55,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 30 [2022-11-19 08:27:55,493 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-11-19 08:27:55,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-11-19 08:27:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:55,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:27:55,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:55,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2022-11-19 08:27:56,787 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:27:56,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 08:27:56,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-19 08:27:57,502 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:27:57,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 49 [2022-11-19 08:27:57,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:27:57,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-19 08:27:58,395 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:27:58,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 08:27:58,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-19 08:28:00,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:00,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2022-11-19 08:28:00,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:00,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-19 08:28:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:00,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:01,824 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))) (forall ((v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2022-11-19 08:28:01,872 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1923))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1922) .cse0 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1922) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| v_ArrVal_1923) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 8))))) is different from false [2022-11-19 08:28:01,920 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1923))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1922) .cse1 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))) (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1922) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1923) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))) is different from false [2022-11-19 08:28:01,981 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|))) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (and (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int))) (<= 0 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1922) (select (select (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1923) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 8))) (forall ((v_ArrVal_1923 (Array Int Int)) (v_ArrVal_1922 (Array Int Int)) (v_ArrVal_1927 (Array Int Int)) (v_ArrVal_1926 (Array Int Int))) (let ((.cse4 (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1923))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (<= (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| v_ArrVal_1922) .cse3 v_ArrVal_1927) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 12) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1926) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)))))))) is different from false [2022-11-19 08:28:34,846 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:28:34,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 171 [2022-11-19 08:28:34,875 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:28:34,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 160 treesize of output 111 [2022-11-19 08:28:34,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:34,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 446 [2022-11-19 08:28:34,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:34,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1032 treesize of output 1006 [2022-11-19 08:28:34,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:34,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 938 treesize of output 858 [2022-11-19 08:28:34,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:34,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 834 treesize of output 802 [2022-11-19 08:28:34,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 774 treesize of output 722 [2022-11-19 08:28:35,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 606 [2022-11-19 08:28:35,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:28:35,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 360 treesize of output 351 [2022-11-19 08:28:35,338 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:28:35,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 211 [2022-11-19 08:28:35,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2210 treesize of output 2124 [2022-11-19 08:28:35,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7102 treesize of output 7004 [2022-11-19 08:28:35,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6996 treesize of output 6612 [2022-11-19 08:28:35,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6468 treesize of output 6276 [2022-11-19 08:28:35,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5988 treesize of output 5604 [2022-11-19 08:28:35,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5468 treesize of output 5272 [2022-11-19 08:28:35,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5124 treesize of output 4932 [2022-11-19 08:28:35,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4868 treesize of output 4360 [2022-11-19 08:28:35,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:35,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4230 treesize of output 3854 [2022-11-19 08:29:26,687 WARN L233 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:29:33,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845006981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:29:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [871761640] [2022-11-19 08:29:33,195 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-19 08:29:33,195 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:29:33,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:29:33,196 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:29:33,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:29:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:29:33,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:29:33,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:29:33,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:29:33,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:29:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:29:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:29:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:29:33,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:29:33,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:29:33,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-19 08:29:33,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,788 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:29:33,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 139 [2022-11-19 08:29:33,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2022-11-19 08:29:33,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 21 [2022-11-19 08:29:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,015 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 08:29:34,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 255 treesize of output 176 [2022-11-19 08:29:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,117 INFO L321 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2022-11-19 08:29:34,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 150 [2022-11-19 08:29:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 21 [2022-11-19 08:29:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2022-11-19 08:29:34,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:29:34,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,504 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-19 08:29:34,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 176 treesize of output 123 [2022-11-19 08:29:34,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 67 [2022-11-19 08:29:34,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,719 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-19 08:29:34,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 303 treesize of output 208 [2022-11-19 08:29:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 138 [2022-11-19 08:29:34,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 21 [2022-11-19 08:29:34,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:34,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:34,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,062 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:29:35,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 266 treesize of output 190 [2022-11-19 08:29:35,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,191 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-19 08:29:35,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 120 [2022-11-19 08:29:35,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:29:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,490 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-19 08:29:35,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 248 treesize of output 179 [2022-11-19 08:29:35,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-19 08:29:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-19 08:29:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,853 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-19 08:29:35,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 66 [2022-11-19 08:29:35,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:29:35,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:35,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,134 INFO L321 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2022-11-19 08:29:36,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 332 treesize of output 229 [2022-11-19 08:29:36,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 99 [2022-11-19 08:29:36,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,516 INFO L321 Elim1Store]: treesize reduction 90, result has 15.9 percent of original size [2022-11-19 08:29:36,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 369 treesize of output 271 [2022-11-19 08:29:36,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 170 [2022-11-19 08:29:36,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 21 [2022-11-19 08:29:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:36,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:36,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:37,395 INFO L321 Elim1Store]: treesize reduction 300, result has 18.5 percent of original size [2022-11-19 08:29:37,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 437 treesize of output 273 [2022-11-19 08:29:37,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 137 [2022-11-19 08:29:37,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-19 08:29:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:37,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:37,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:37,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:37,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:38,282 INFO L321 Elim1Store]: treesize reduction 142, result has 16.5 percent of original size [2022-11-19 08:29:38,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 48 case distinctions, treesize of input 890 treesize of output 613 [2022-11-19 08:29:38,428 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-19 08:29:38,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:38,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:38,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:38,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:38,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:38,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:38,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:39,019 INFO L321 Elim1Store]: treesize reduction 242, result has 14.8 percent of original size [2022-11-19 08:29:39,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 882 treesize of output 868 [2022-11-19 08:29:39,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:39,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 880 treesize of output 859 [2022-11-19 08:29:40,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:41,794 INFO L321 Elim1Store]: treesize reduction 406, result has 10.8 percent of original size [2022-11-19 08:29:41,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3125 treesize of output 2989 [2022-11-19 08:29:42,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:42,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:42,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:42,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:42,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:42,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:43,035 INFO L321 Elim1Store]: treesize reduction 156, result has 17.9 percent of original size [2022-11-19 08:29:43,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 57 case distinctions, treesize of input 3675 treesize of output 2208 [2022-11-19 08:29:43,239 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-19 08:29:43,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:43,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:43,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:43,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:43,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:43,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:43,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:44,345 INFO L321 Elim1Store]: treesize reduction 266, result has 10.7 percent of original size [2022-11-19 08:29:44,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 50 case distinctions, treesize of input 3351 treesize of output 3041 [2022-11-19 08:29:44,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:44,636 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-19 08:29:44,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3318 treesize of output 3261 [2022-11-19 08:29:45,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,754 INFO L321 Elim1Store]: treesize reduction 166, result has 14.4 percent of original size [2022-11-19 08:29:45,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 57 case distinctions, treesize of input 1586 treesize of output 1021 [2022-11-19 08:29:45,955 INFO L217 Elim1Store]: Index analysis took 154 ms [2022-11-19 08:29:45,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:45,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:45,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:48,144 INFO L321 Elim1Store]: treesize reduction 654, result has 16.8 percent of original size [2022-11-19 08:29:48,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 58 case distinctions, treesize of input 1540 treesize of output 1476 [2022-11-19 08:29:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:48,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:48,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1455 treesize of output 1406 [2022-11-19 08:29:49,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:49,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:49,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:49,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:51,065 INFO L321 Elim1Store]: treesize reduction 696, result has 14.3 percent of original size [2022-11-19 08:29:51,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 91 case distinctions, treesize of input 2295 treesize of output 1218 [2022-11-19 08:29:51,282 INFO L217 Elim1Store]: Index analysis took 154 ms [2022-11-19 08:29:51,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:51,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:51,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:55,541 INFO L321 Elim1Store]: treesize reduction 1132, result has 13.7 percent of original size [2022-11-19 08:29:55,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 81 case distinctions, treesize of input 2062 treesize of output 1849 [2022-11-19 08:29:56,287 INFO L321 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2022-11-19 08:29:56,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1875 treesize of output 1850 [2022-11-19 08:30:01,066 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 19 treesize of output 1 [2022-11-19 08:30:01,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:01,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:01,237 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:30:01,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-19 08:30:01,383 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:30:01,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:30:01,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:30:01,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:30:01,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:30:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:01,572 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:30:01,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 112 [2022-11-19 08:30:01,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 94 [2022-11-19 08:30:01,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:30:02,717 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:30:02,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 257 treesize of output 257 [2022-11-19 08:30:02,850 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-11-19 08:30:03,997 INFO L321 Elim1Store]: treesize reduction 284, result has 22.6 percent of original size [2022-11-19 08:30:03,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 181 treesize of output 223 [2022-11-19 08:30:04,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:30:04,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 08:30:04,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:04,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:04,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:30:04,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:30:04,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:30:04,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:30:04,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:30:04,904 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-19 08:30:04,904 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 96 [2022-11-19 08:30:05,083 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-19 08:30:05,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 94 [2022-11-19 08:30:05,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-11-19 08:30:05,152 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:30:31,486 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23344#(and (or (not (<= 0 (+ |ULTIMATE.start_main_~inner~0#1.offset| 8))) (not (<= (+ |ULTIMATE.start_main_~inner~0#1.offset| 12) (select |#length| |ULTIMATE.start_main_~inner~0#1.base|)))) (<= 0 |#NULL.base|) (<= (+ 12 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) |ULTIMATE.start_main_~inner~0#1.base|) (or (not (= |ULTIMATE.start_main_~inner~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~inner~0#1.base| 0))) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~inner~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~end~0#1.base|) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (not (= |ULTIMATE.start_main_~end~0#1.base| 0)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-19 08:30:31,486 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:30:31,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:30:31,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 44 [2022-11-19 08:30:31,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111129224] [2022-11-19 08:30:31,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:30:31,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-19 08:30:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-19 08:30:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=4427, Unknown=39, NotChecked=564, Total=5550 [2022-11-19 08:30:31,490 INFO L87 Difference]: Start difference. First operand 321 states and 391 transitions. Second operand has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:45,390 INFO L93 Difference]: Finished difference Result 514 states and 605 transitions. [2022-11-19 08:30:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 08:30:45,391 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-19 08:30:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:45,397 INFO L225 Difference]: With dead ends: 514 [2022-11-19 08:30:45,397 INFO L226 Difference]: Without dead ends: 514 [2022-11-19 08:30:45,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 85 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2975 ImplicationChecksByTransitivity, 87.0s TimeCoverageRelationStatistics Valid=837, Invalid=7148, Unknown=41, NotChecked=716, Total=8742 [2022-11-19 08:30:45,401 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 861 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2877 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:45,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1567 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1062 Invalid, 0 Unknown, 2877 Unchecked, 6.2s Time] [2022-11-19 08:30:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-19 08:30:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 323. [2022-11-19 08:30:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 299 states have (on average 1.3043478260869565) internal successors, (390), 322 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 390 transitions. [2022-11-19 08:30:45,411 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 390 transitions. Word has length 47 [2022-11-19 08:30:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:45,412 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 390 transitions. [2022-11-19 08:30:45,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 45 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 390 transitions. [2022-11-19 08:30:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:30:45,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:45,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:45,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:30:45,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-11-19 08:30:45,620 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:30:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:45,621 INFO L85 PathProgramCache]: Analyzing trace with hash 149362287, now seen corresponding path program 1 times [2022-11-19 08:30:45,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:45,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67972021] [2022-11-19 08:30:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:45,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:30:47,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67972021] [2022-11-19 08:30:47,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67972021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:47,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:47,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:30:47,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678657656] [2022-11-19 08:30:47,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:47,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:30:47,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:30:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:30:47,418 INFO L87 Difference]: Start difference. First operand 323 states and 390 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:51,592 INFO L93 Difference]: Finished difference Result 354 states and 412 transitions. [2022-11-19 08:30:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:30:51,592 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-11-19 08:30:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:51,595 INFO L225 Difference]: With dead ends: 354 [2022-11-19 08:30:51,595 INFO L226 Difference]: Without dead ends: 354 [2022-11-19 08:30:51,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:30:51,596 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 385 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:51,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 454 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 08:30:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-19 08:30:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 323. [2022-11-19 08:30:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 299 states have (on average 1.3010033444816054) internal successors, (389), 322 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 389 transitions. [2022-11-19 08:30:51,602 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 389 transitions. Word has length 47 [2022-11-19 08:30:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:51,602 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 389 transitions. [2022-11-19 08:30:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 389 transitions. [2022-11-19 08:30:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:30:51,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:51,603 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-19 08:30:51,603 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2022-11-19 08:30:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -60335228, now seen corresponding path program 1 times [2022-11-19 08:30:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:51,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230800978] [2022-11-19 08:30:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:56,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:56,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230800978] [2022-11-19 08:30:56,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230800978] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:30:56,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121693531] [2022-11-19 08:30:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:56,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:30:56,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:56,438 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:30:56,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ba4743c-aece-4626-9e2a-60f437e1ba84/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 08:30:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:56,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-19 08:30:56,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:30:56,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:30:57,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:57,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:30:58,053 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:30:58,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:30:58,464 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:30:58,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:30:58,620 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:30:58,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:30:59,566 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:30:59,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 50 [2022-11-19 08:30:59,617 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 26 treesize of output 28 [2022-11-19 08:31:00,653 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:31:00,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 72 [2022-11-19 08:31:00,723 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:31:00,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2022-11-19 08:31:01,883 INFO L321 Elim1Store]: treesize reduction 4, result has 94.9 percent of original size [2022-11-19 08:31:01,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 142 [2022-11-19 08:31:03,546 INFO L321 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2022-11-19 08:31:03,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 63 [2022-11-19 08:31:03,635 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:31:03,635 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 92 treesize of output 94 [2022-11-19 08:31:04,859 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-19 08:31:04,859 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 120 treesize of output 108 [2022-11-19 08:31:04,874 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 98 treesize of output 100 [2022-11-19 08:31:05,917 INFO L321 Elim1Store]: treesize reduction 58, result has 29.3 percent of original size [2022-11-19 08:31:05,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 164 treesize of output 142 [2022-11-19 08:31:06,003 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:31:06,003 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 122 treesize of output 124 [2022-11-19 08:31:06,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-19 08:31:06,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-11-19 08:31:09,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:09,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 129 [2022-11-19 08:31:09,376 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 55 treesize of output 47 [2022-11-19 08:31:10,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:10,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:31:11,331 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (or (forall ((v_ArrVal_2101 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem16#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_2102 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem16#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0)) 1))) (forall ((v_ArrVal_2102 (Array Int Int))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem16#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse0))) (or (= (select |c_#valid| .cse1) 1) (= .cse1 0)))))) is different from false [2022-11-19 08:31:11,401 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8))) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_2102 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= (select |c_#valid| .cse0) 1) (= 0 .cse0)))) (or (forall ((v_ArrVal_2101 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_2102 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1))))) is different from false [2022-11-19 08:31:11,475 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse2 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8))) (and (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_2099))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= (select |c_#valid| .cse0) 1) (= .cse0 0)))) (forall ((v_ArrVal_2100 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_2099))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) .cse2))) (or (forall ((v_ArrVal_2101 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_2100) .cse4 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_2102 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse5 .cse4 v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) 1)))))))) is different from false [2022-11-19 08:31:11,549 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~end~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse4)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (forall ((v_ArrVal_2100 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2099))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~end~0#1.base|) .cse4))) (or (forall ((v_ArrVal_2101 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_2100) .cse1 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_2102 (Array Int Int))) (= (select |c_#valid| (select (select (store .cse3 .cse1 v_ArrVal_2102) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2)) 1)))))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse5 (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2099))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~end~0#1.base|) .cse4) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))) (or (= (select |c_#valid| .cse5) 1) (= .cse5 0))))))) is different from false [2022-11-19 08:31:11,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:11,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 283 [2022-11-19 08:31:12,808 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) (.cse6 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse1 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse1 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (let ((.cse4 (select (select (let ((.cse5 (store .cse2 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (forall ((v_prenex_14 (Array Int Int)) (v_prenex_15 (Array Int Int))) (= |c_ULTIMATE.start_main_~end~0#1.base| (select (select (let ((.cse0 (store .cse2 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) .cse1) v_prenex_14)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (= .cse4 0) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse4)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse8 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse8 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (let ((.cse10 (select (select (let ((.cse11 (store .cse9 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse11 (select (select .cse11 |c_ULTIMATE.start_main_~end~0#1.base|) .cse8) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (forall ((v_prenex_14 (Array Int Int)) (v_prenex_15 (Array Int Int))) (= (select (select (let ((.cse7 (store .cse9 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~end~0#1.base|) .cse8) v_prenex_14)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) .cse10)) (= .cse10 0) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse10)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse14 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse15 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse14 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (or (forall ((v_prenex_14 (Array Int Int)) (v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2100 (Array Int Int)) (v_ArrVal_2097 (Array Int Int)) (v_prenex_15 (Array Int Int))) (let ((.cse12 (store .cse15 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (let ((.cse13 (select (select .cse12 |c_ULTIMATE.start_main_~end~0#1.base|) .cse14))) (or (= |c_ULTIMATE.start_main_~end~0#1.base| (select (select (store .cse12 .cse13 v_prenex_14) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2097) |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2100) .cse13 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0))))) (= |c_ULTIMATE.start_main_~end~0#1.base| (select (select (let ((.cse16 (store .cse15 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse16 (select (select .cse16 |c_ULTIMATE.start_main_~end~0#1.base|) .cse14) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse20 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse21 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse20 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (let ((.cse18 (select (select (let ((.cse22 (store .cse21 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse22 (select (select .cse22 |c_ULTIMATE.start_main_~end~0#1.base|) .cse20) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (forall ((v_prenex_14 (Array Int Int)) (v_prenex_15 (Array Int Int))) (let ((.cse17 (select (select (let ((.cse19 (store .cse21 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (store .cse19 (select (select .cse19 |c_ULTIMATE.start_main_~end~0#1.base|) .cse20) v_prenex_14)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= |c_ULTIMATE.start_main_~end~0#1.base| .cse17) (= .cse17 .cse18)))) (= .cse18 0) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse18)))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_prenex_14 (Array Int Int)) (v_ArrVal_2099 (Array Int Int)) (v_prenex_15 (Array Int Int))) (let ((.cse25 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse26 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse25 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (let ((.cse28 (store .cse26 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (let ((.cse27 (select (select .cse28 |c_ULTIMATE.start_main_~end~0#1.base|) .cse25))) (let ((.cse23 (select (select (store .cse28 .cse27 v_prenex_14) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= |c_ULTIMATE.start_main_~end~0#1.base| .cse23) (= .cse23 (select (select (let ((.cse24 (store .cse26 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse24 (select (select .cse24 |c_ULTIMATE.start_main_~end~0#1.base|) .cse25) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2100 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2097) |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2100) .cse27 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0))))))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2099 (Array Int Int))) (let ((.cse33 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse34 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store .cse6 .cse33 |c_ULTIMATE.start_main_#t~malloc14#1.base|)))) (let ((.cse30 (select (select (let ((.cse35 (store .cse34 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2099))) (store .cse35 (select (select .cse35 |c_ULTIMATE.start_main_~end~0#1.base|) .cse33) v_ArrVal_2102)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (forall ((v_prenex_14 (Array Int Int)) (v_prenex_15 (Array Int Int))) (let ((.cse32 (store .cse34 |c_ULTIMATE.start_main_#t~malloc14#1.base| v_prenex_15))) (let ((.cse31 (select (select .cse32 |c_ULTIMATE.start_main_~end~0#1.base|) .cse33))) (let ((.cse29 (select (select (store .cse32 .cse31 v_prenex_14) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= |c_ULTIMATE.start_main_~end~0#1.base| .cse29) (= .cse29 .cse30) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2100 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_2097) |c_ULTIMATE.start_main_#t~malloc14#1.base| v_ArrVal_2100) .cse31 v_ArrVal_2101) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0))))))) (= |c_ULTIMATE.start_main_~end~0#1.base| .cse30)))))))) is different from false [2022-11-19 08:31:20,940 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:20,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 156 [2022-11-19 08:31:21,051 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:21,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 99 [2022-11-19 08:31:21,133 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:21,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 99 [2022-11-19 08:31:21,214 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:21,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 156 [2022-11-19 08:31:21,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:21,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 126 [2022-11-19 08:31:21,394 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:21,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 126 [2022-11-19 08:31:45,002 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 08:31:45,002 INFO L350 Elim1Store]: Elim1 eliminated variable 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 130 treesize of output 143 [2022-11-19 08:31:45,148 INFO L321 Elim1Store]: treesize reduction 16, result has 61.9 percent of original size [2022-11-19 08:31:45,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 418 treesize of output 235 [2022-11-19 08:31:45,241 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:45,243 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 68185 treesize of output 57585 [2022-11-19 08:31:45,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:31:45,516 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 757 treesize of output 709 [2022-11-19 08:31:45,805 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:45,806 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 46203 treesize of output 43659 [2022-11-19 08:31:46,060 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 421 treesize of output 373 [2022-11-19 08:31:46,316 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 562 treesize of output 546 [2022-11-19 08:31:46,563 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 546 treesize of output 502 [2022-11-19 08:31:46,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:46,845 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 54727 treesize of output 47713 [2022-11-19 08:31:47,081 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 38220 treesize of output 34036 [2022-11-19 08:31:47,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:47,363 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 44203 treesize of output 34815 [2022-11-19 08:31:47,618 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 7130 treesize of output 6586 [2022-11-19 08:31:47,992 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:47,992 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 6586 treesize of output 5666